![]() |
|
|
Thread Tools | Display Modes |
#641
|
|||
|
|||
![]()
On 4 Apr 2007 00:30:36 -0700, "George Dishman"
wrote: On 4 Apr, 00:17, HW@....(Henri Wilson) wrote: On 3 Apr 2007 07:02:49 -0700, "George Dishman" wrote: On 3 Apr, 01:25, HW@....(Henri Wilson) wrote: On Mon, 2 Apr 2007 22:51:01 +0100, "George Dishman" wrote: "Henri Wilson" HW@.... wrote in message George if you can tell me how much matter is falling into the star and what is its relative angular momentum, I might be able to provide some kind of answer. You would also have to assume something about magnetic damping and tidal effects due to gaseous atmosphere around it. ..and what is the curvature of its transverse motion? How anyone can seriously claim that it is exactly in line with GR predictions is really funny. Nobody claimed it was in line with any GR predictions, you said it was "exactly what the BaTh predicts". That paper you referred me to claimed it was. I'm surprised but I don't have that one handy. Are you sure you aren't thinking of the Hulse and Taylor paper? Pulsar rate slowing is due to the magnetic field and I don't think GR even comes into it, nor does ballistic theory AFAICS. Every second paper I read about pulsars makes some kind of claim that they support GR. Why is it still so important to 'prove' GR when people like yourself are absolutely sure it is correct? What is observed is a delay when the Sun is close to the line of sight to spaecraft and when radar signals are bounced off Venus and so on. There is no question about the observation within the Solar system and both GR and ballistic theory say the effect should be largest when the light passes closest to the body (obviously). The main difference is the sense of the effect. George, the BaTh says all light leaving the pair will be slowed slightly, causing an overall redshift that may or may not be counterbalanced by the blue shift arising from its accelerated approach to our galaxy and Earth. Henry, have a look at the earlier message in this thread where we discussed this: http://groups.google.co.uk/group/sci...3b2a017ef89b9b Your conclusion was: Right so the signal arrives earlier, it is not a delay. The gravitational redshift is identical in each case as is the eventual speed. that's right. When the star is on the near side, the bending of light by the dwarf more than compensates for the increase in average light speed. So The BaTh says that there should be a shapiro type slowing. Let's see the maths Henry. If you are right then you can add that curve to you program and then we will see if you can really match the curves. George, I don't believe the pulses originate anywhere near the neutron star itself. I don't believe the effect to which you are refering is necessarily a shapiro type effect. I am not going to continue to speculate about something I don't believe happens. Since the calculated velocities upon which all pulsar theory is based is completely wrong, I fail to se how anyhting positive can come out of this argument. I don't even accept that this is the real source of pulses. I don't really care what you accept, all that matters is that pulses are produced and we can use them as a testbed. Fair enough...but the distance of their origin from the pulsar could be important for the BaTh. I doubt it unless it was well outside the binary system but then there would be little variation in any of the parameters. George, the pulse we detect is NOT just a magnetic one. Somewhere along the line EM is generated and sent in many directions. Hte theory says something about charges being moved along the magnetic field. That doesn't add up because charges would more likey want to move ACROSS the field. In reality, it is probably more like the earlier static picture where the angle between the rotational and magnetic axes is smaller. The second beam is always pointing away from us. Maybe..but I would have thought the field is more like a broad plane than a beam. They seem to produce a cone shaped beam or pencil beams, sometimes both. The whole thing is very complex. See section 4 and Figure 2 of http://www.arxiv.org/abs/astro-ph/0407149 Note the signal is low in the centre and highest along the 'hourglass' shaped contour. Yes. Even the 'magnetic field' idea is an assumption. There is a lot of evidence backing that up. It could for instance be a beam of radiation that excites surounding gas.. No, the excitation would take far too long to decay and the pulse would probably have a longer tail. theories, theories..... You know you can say just about anything because nobody is going up there to prove you wrong. Anyway I suppose it doesn't matter much for our purposes. Not really. No, it predicts a delay. Then it has the star's position 180 out...that's all. We see a delay that peaks like this: _/\_____ An advance shifted by 180 degrees would look like this: _____ _ \/ Not even close. No. The BaTh expects the same kind of delay due to bending and increased light path lengths. I was wrong about the 180 difference. OK, so now show me the maths you used to find that there is an overal delay. It should be the same as the GR delay and for basically the same reasons...except that GR prefers to distort space to keep light speed constant. What I mean is that you haven't worked through the whole problem to find a single set of numbers that fits all the observational data. It's not a criticism Henry, we just haven't reached that stage yet. I'm a bit confused as to which pulsar we are discussing now. The history is lost in the snipping but different bits of the post refer to different systems. The eclipsing system is J0737-3039 which is two pulsars. ..explain the phasing in diagram1 and I will try. As I understand it, the phase is like this: A B + D Earth C A = 0.00 & 1.00 B = 0.25 C = 0.50 D = 0.75 I don't like their method anyway. The terms are fairly standard and you should be able to convert to other angles easily. These should help: http://en.wikipedia.org/wiki/Longitu...ascending_node you see I don't use this convention. Maybe not but you need to understand it if you want to know what a longitude of periastron of 155 degrees means in your terms. yes I'll try to translate it. It is my Yaw angle...opposite sense and their zero is my 90. So 155 is my -65 deg Yaw angle, I think. And statistically we expect to see some. There is no reason to think this isn't one and the Shapiro delay matches. Where is evidence of the eclipse? The fact that the flux dips to near zero coincident with the Shapiro delay maximum, point B on the above diagram. Is this still with reference to the dual pulsar system? Yes. If so there should be two Shapiro effects per cycle. There should but the pulses from the second pulsar are very hard to detect. They have only recently caught them for a small part of the orbit. Again, being a thin beam there is a finite chance that it won't sweep over us. Now that it has been found there might be a more extensive study in the future. These are all areas of on-going research but it is a fact that we see X-ray and gamma emissions and I believe the spctra can give some indication of the surface composition. Anyway, there is no reason why we shouldn't see the surface, the free-fall speed would be about half the speed of light so there would be _significant_ gravitational redshift. So what is the actual doppler shift of the EM that makes up the actual pulses of a neutron star? It should be very heavily redshifted .. AFAIK it is a continuum with no lines to be measured. Remember we are talking about radio signals in the VHF to microwave bands. Hmmm.. and the pulses should start out at maybe c/2. ...this is why I don't believe the pulses are actually produced near the pulsar itself but at a considerable distance away. The slow initial speed would just give an overall distance value that is higher than actual, but only by a few light hours at most and we don't know the distance better than tens of light years, and since the error would be constant, it doesn't have any effect we can measure. So you still believe the speed aof all the emitted light miraculously adjusts to c wrt little planet Earth, do you George? Yes...but I hadn't forgotten. I'm trying to find velocity curves for so called eclipsing binaries because they should reveal a great deal about this whole approach. I'm still not convinced that the 'compressible pulse width' method we're using for pulsars applies to light from stars. I am discussing J0737-3039 which is a double pulsar system with an eclipse. The velocity curve should be easy to find or perhaps figure out from the orbital elements (as before work back using conventional theory to find the observations then re-interpret using ballistic theory). I'll see what I can find. OK. If you can add a curve for the ballistic theory Shapiro effect, then we can really see how well you can match the observations. I have finally managed to use your method to add the contributuons of two members of a binary. The programming has nearly driven me up the wall. George Einstein's Relativity - the greatest HOAX since jesus christ's mother. |
#642
|
|||
|
|||
![]()
On 4 Apr, 09:51, HW@....(Henri Wilson) wrote:
On 4 Apr 2007 00:30:36 -0700, "George Dishman" wrote: On 4 Apr, 00:17, HW@....(Henri Wilson) wrote: On 3 Apr 2007 07:02:49 -0700, "George Dishman" wrote: On 3 Apr, 01:25, HW@....(Henri Wilson) wrote: On Mon, 2 Apr 2007 22:51:01 +0100, "George Dishman" wrote: "Henri Wilson" HW@.... wrote in message George if you can tell me how much matter is falling into the star and what is its relative angular momentum, I might be able to provide some kind of answer. You would also have to assume something about magnetic damping and tidal effects due to gaseous atmosphere around it. ..and what is the curvature of its transverse motion? How anyone can seriously claim that it is exactly in line with GR predictions is really funny. Nobody claimed it was in line with any GR predictions, you said it was "exactly what the BaTh predicts". That paper you referred me to claimed it was. I'm surprised but I don't have that one handy. Are you sure you aren't thinking of the Hulse and Taylor paper? Pulsar rate slowing is due to the magnetic field and I don't think GR even comes into it, nor does ballistic theory AFAICS. Every second paper I read about pulsars makes some kind of claim that they support GR. That's because they are a very good vehicle for testing GR in strong field conditions that are hard to produce other ways. Why is it still so important to 'prove' GR ... Because in science any theory is only trusted in regions that have been tested. The more extreme the conditions under which it is tested, the more we can be sure the predictions will be accurate. Also there is always the hope that some small deviation will be found which can be the beginning of the next theory. That's how science works. ... when people like yourself are absolutely sure it is correct? Who said I was sure it was correct? I am fairly sure it will need changes to accomodate QM and may need a change to explain dark energy (not dark matter though). George, the BaTh says all light leaving the pair will be slowed slightly, causing an overall redshift that may or may not be counterbalanced by the blue shift arising from its accelerated approach to our galaxy and Earth. Henry, have a look at the earlier message in this thread where we discussed this: http://groups.google.co.uk/group/sci...3b2a017ef89b9b Your conclusion was: Right so the signal arrives earlier, it is not a delay. The gravitational redshift is identical in each case as is the eventual speed. that's right. When the star is on the near side, the bending of light by the dwarf more than compensates for the increase in average light speed. So The BaTh says that there should be a shapiro type slowing. Let's see the maths Henry. If you are right then you can add that curve to you program and then we will see if you can really match the curves. George, I don't believe the pulses originate anywhere near the neutron star itself. Running away Henry? Show me the maths that led to your conclusion. I don't believe the effect to which you are refering is necessarily a shapiro type effect. I am not going to continue to speculate about something I don't believe happens. Fine, if you think you can match the curves without it but you will then be in the position of explaining why something that does happen in the Solar system doesn't happen in the double pulsar system where we know they are in an eclipsing configuration. .... I don't even accept that this is the real source of pulses. I don't really care what you accept, all that matters is that pulses are produced and we can use them as a testbed. Fair enough...but the distance of their origin from the pulsar could be important for the BaTh. I doubt it unless it was well outside the binary system but then there would be little variation in any of the parameters. George, the pulse we detect is NOT just a magnetic one. Somewhere along the line EM is generated and sent in many directions. Hte theory says something about charges being moved along the magnetic field. That doesn't add up because charges would more likey want to move ACROSS the field. Correct, in fact the charges move in spirals around a field line which means it is highly accelerated which means they radiate. It is called syncrotron radiation as Jerry told you. Even the 'magnetic field' idea is an assumption. There is a lot of evidence backing that up. It could for instance be a beam of radiation that excites surounding gas.. No, the excitation would take far too long to decay and the pulse would probably have a longer tail. theories, theories..... Common sense Henry, you cannot heat up a stellar mass and cool it down again in 45 microseconds. Get real for goodness sake. You know you can say just about anything because nobody is going up there to prove you wrong. There are nuts out there who will argue almost anything. .... No. The BaTh expects the same kind of delay due to bending and increased light path lengths. I was wrong about the 180 difference. OK, so now show me the maths you used to find that there is an overal delay. It should be the same as the GR delay ... Nope, if you do the maths, it is an advance. As I asked, if you disagree, show me your calculation. The terms are fairly standard and you should be able to convert to other angles easily. These should help: http://en.wikipedia.org/wiki/Longitu...ascending_node you see I don't use this convention. Maybe not but you need to understand it if you want to know what a longitude of periastron of 155 degrees means in your terms. yes I'll try to translate it. It is my Yaw angle...opposite sense and their zero is my 90. So 155 is my -65 deg Yaw angle, I think. It should be something like that. Given the conventional eccentricity is 10^-7, the curve must be so close to a sine wave it doesn't matter for J1909-3744 but it will matter when you look at PSR1316 and J0737-3039. .... and the pulses should start out at maybe c/2. ...this is why I don't believe the pulses are actually produced near the pulsar itself but at a considerable distance away. The slow initial speed would just give an overall distance value that is higher than actual, but only by a few light hours at most and we don't know the distance better than tens of light years, and since the error would be constant, it doesn't have any effect we can measure. So you still believe the speed aof all the emitted light miraculously adjusts to c wrt little planet Earth, do you George? c wrt the 'space'through which it is travelling. That is what your "extinction" (or "speed equalisation" as I prefer to call it) means, isn't it? I am discussing J0737-3039 which is a double pulsar system with an eclipse. The velocity curve should be easy to find or perhaps figure out from the orbital elements (as before work back using conventional theory to find the observations then re-interpret using ballistic theory). I'll see what I can find. OK. If you can add a curve for the ballistic theory Shapiro effect, then we can really see how well you can match the observations. I have finally managed to use your method to add the contributuons of two members of a binary. The programming has nearly driven me up the wall. Neat but I think we generally only need to treat them separately, at least for pulsars and Cepheids. Spectroscopic binaries where only a composite light curve is available would be a different matter of course. George |
#643
|
|||
|
|||
![]()
On 3 Apr, 00:38, HW@....(Henri Wilson) wrote:
On Mon, 2 Apr 2007 22:25:42 +0100, "George Dishman" wrote: "Henri Wilson" HW@.... wrote in message .. . On Sun, 1 Apr 2007 14:36:54 +0100, "George Dishman" How do we know the orbital phase of a variable star George? Who is talking about variable stars Henry? You suggested I didn't want to look at PSR1613+16 but now you want to change the subject. The theory is that its orbit is highly elliptical and precessing at a known rate. Try to take more care with your terms henry, the theory is GR. That the orbit is elliptical and precessing is the best model fit. If the faith is strong enough George, you will find evidence of it everywhere. You are a prime example, but that is beside the point, you should still know what the words "theory" and "model" mean and be able to use them correctly. I say this pulsar has a nearly circular orbit and maybe its transverse velocity could explain that willusion. Baseless handwaving. I also point out that I don't accept any published astronomical data that is based on grossly wrong values of orbital velocities. Of course not. Produce your best fit of your model to the observations and then we will see whether you agree the rate of orbital change or not. So far you have no evidence to suggest the conventional values are wrong. Stop preaching George ... I'm not preaching Henry, I'm challenging you to back up your claims of a "match" which I think are quite ficticious. Where are your orbital parameters and extinction distance for J1909-3744 and the others? George |
#644
|
|||
|
|||
![]()
On 3 Apr, 00:36, HW@....(Henri Wilson) wrote:
On Mon, 2 Apr 2007 22:22:12 +0100, "George Dishman" wrote: "Henri Wilson" HW@.... wrote in message .. . On 1 Apr 2007 06:46:07 -0700, "George Dishman" wrote: Yes, that's what the observations say they do. What observations george? Are you sugesting that somebody has actually measured the OW speed of individual pulsar pulses wrt Earth? I am pointing out that no observations contradict that view while if ballistic theory was correct you would expect many violations, such as multiple images from binaries. That idea went out the window long ago. No, it is still true. You have to bodge in an ad hoc speed equalisation to cover it up because the observation contradicts Ritz's theory. You are claiming that as each pulse is emitted, its speed becomes magically adjusted to exactly that of all the previous ones. Nope, and you know pefectly well that's a load of crap Henry, you've been told what SR says far too many times over the years. You are just inventing yet another deliberate distortion to hide from reality. George, you obviously don't even understand your own stupid theory. IT SAYS JUST WHAT I WROTE ABOVE. Don't deny it. Sorry Henry, shouting doesn't make errors any less wrong. I know you are aware of this, I have corrected you on it dozens of times over what must be nearly a decade now. George, SR says that light emitted from differently moving source at the same point will travel through space at the same speed . There you are you see, you DO know the correct postulate. Are you now denying the very existence of Einstein's second postulate? .... Speed isn't the key part, remember you said there was no phase shift for zero distance where the VDoppler should dominate so clearly you had a fundamental error. We need to know the phase so your program was unusable at that point. We don't need to know the phase. Yes we do, that is the key as I have been telling you for several weeks, it allows you to distinguish VDoppler from ADoppler which is hard to do any other way unless you are lucky enough to have an eclipsing situation. I have already done that. I gave you the figures. ...but they are just a geometric phenomenon. True but very useful nonetheless. .... SR, LET and BaTh produce almost the same VDoppler shift for speeds c. You should know that. So what, the curve that is matched is the change of the orbit resulting from the energy loss through gravitational radiation. I'm reasonably happy with the idea of energy loss due to a number of factors....although I'm sure matter falling into the pulsar would also slow it down. In PSR1613 there isn't much matter transfer AFAIK though in other systems it is very important. The effect on the orbit is probably slight but the effect on the spin is to increase it significantly. That's how millisecond pulsars are created. George, I told you how that can appear to happen. Let me give you a hint Henry, circular orbits don't have a periastron. Well it is probably not exactly circular. maybe e=0.02-04 Fine, you were the one claiming it was circular. I have to compare its curve with a sine wave and look at residuals. . The curve matches a Keplerian ellipse withe the conventional analysis. I would expect it to match a different ellipse with ballistic theory though perhaps not too different depending on your extinction distance. Utter rubbish Henry, the pulse is seen in the radio frequencies below microwave and is a broad band signal, the signals couldn't pulse as fast as they do because the heated gas would cool slowly and the radiation from the disc would be nearly omni-directonal other than some shadowing by other parts of the disc and the star. Well what is YOUR explanation of the pulse origin George? I'm not clear on the details but I understand it to be basically cyclotron radiation in particles pulled from the stellar surface by electrostatic fields. The magnetic field creates the beam by aligning the spiralling of the charges: http://www.sciencedaily.com/releases...0303204842.htm there are many theories George. Nobody really has much of a clue. Not too many Henry, the differences tend to be in the details rather than the general mechanism, though obviously different mechanisms apply to different bands, RF and gamma needn't come from the same source. Maybe, but you don't have the faintest idea how to come up with an alternative that actually explains what we see. 'What we see' is the willusion of what happens. Explaining WHAT IS REALLY HAPPENING is not easy George. It is quite easy Henry, the system emits gravitational radiation exactly as Einstein's maths predicts. Oh crap! As the pope said to allah, ... Do you think your tirades have any effect other than to make you look more like a crank? It is a hard mathematical fact that the curve exactly matches the equations and there isn't the slightest reason to doubt that they tell us exactly what is really happening. .. "if the faith is strong enough, you can find evidence for it everywhere you look". ![]() Yep, it is only your religious fervour for ballistic theory that forces you to ignore all the real evidence. Don't you think there might be some degree of magnetic damping? That is one factor slowing the spin rate which is around 10^-20 s/s for typical millisecond pulsars but the orbital frequency is vastly lower so the effect would be correspondingly smaller too. I suggest many possibilities but you never listen. I listen but so far they have all been laughable. They're no funnier than your claim that Einstein's second postulate doesn't really operate .. More delusions Henry. even though you have staked your whole reputation on the theory that follows it. ROFL, I have staked _nothing_ Henry, all theories are only ever the best currently available equations and the aim of science is to replace them. Yopu really don't seem to understand what it is all about. YOUR 'sagnac analysis' did nothing more than epitomise the stupidity of trying to use rotating frames of reference. Sixth time now Henry, the analysis you agreed was in the non-rotating frame. Your denial is getting severe, try to calm down a bit. The analysis did not take all factors into account. It was in the non-rotating frame Henry, have you got that now? It took into account all the factors in your diagram. Photon axis, Quantised, not a vector - cannot delay modulation. centrifugal force, Stupid idea, it doesn't exist or it would show up all over the place and it would have to reduce the speed to near zero to explain the experiment. sideways displacement Stupid suggestion because it doesn't change the phase or delay the signal in any way. ....etc, etc.... Yep, as I said all laughable. ..and it still showed that a fringe shift should occur. No, it showed there would be _no_ shift. That's why you had to go looking for alternatives. I'm not discussing it futrther here. Indeed, it isn't relevant to the pulsar topic. They measure the bunching of pulses from J1909-3744 and assume it is caused by conventional VDoppler! Which your model will confirm when you do the analysis thoroughly. The analysis IS thorough and it demonstrates my point perfectly. Nope, you haven't got a match to the orbital phase at the same time as the red velocity curve yet, or maybe you haven't told me what parameters do that. All doppler calculated velocities are likely to be very wrong. If you had done the analysis, you could tell me the exact error. Then they arrive at velocities that are grossly exaggerated. Surely you can see that by now. I'm waiting for you to work out what parameters will match the observations. I have given you hints about what the answers will turn out to be but you need to do it yourself, I know you won't believe what I tell you without confirming it for yourself. I've already done it for J1909-3744. For a distance of 3Lys, the (orbital velocity x cos(pitch)) = about 30 m/s. (for a bunching factor, 1 in 10^4) This implies that the pulsar is in a quite small orbit that is somewhat face on. Then you haven't got a match because that requires a stellar mass that is three order of magnitude too high. I don't believe ytou have matched the effect that looks like a Shapiro delay either but you need to show the relevant curves for that. So where DOES the supposed Shapiro peak occur? It happens when the LoS passes close to the companion as shown in the diagram: http://www.physorg.com/news9837.html That's 180 out. No, that diagram matches what we se in the Solar system. In the observations, it is at a phase of 0.25 (90 degrees) which is when the Doppler is zero and rising as the source is at its greatest distance from us. See figure 1 of: Where does it say doppler is zero at that point? Where is says the eccentricity is 10^-7. That gives close enough to a circular orbit. http://www.arxiv.org/abs/astro-ph/0507420 Theories, theories, ... No Henry, when are you going to learn what that word means. George...all based on the wrong velocity figures. You may be thinking of an older problem of brightness phase relative to velocity which I suspect has been cleared up. Here I mean the observed phase is not compatible with the Doppler being mostly ADoppler, it needs to be predominantly VDoppler. I don't know what the starting phase is in the above figure. I don't understand their phasing at all. Something is 90 out wrt something else yet longitude of periastron (deg) = 155.7452858095 ± 7. What are these two 'somethings'? That in itself isn't a problem, it simply gives an upper limit to the speed equalisation distance. OK, I understand what you are saying but I can't relate it to this figure. Hopefully you now know how the terms relate to yours from our other discussion. George |
#645
|
|||
|
|||
![]() "Henri Wilson" HW@.... wrote in message news ![]() On Mon, 2 Apr 2007 22:34:19 +0100, "George Dishman" wrote: "Henri Wilson" HW@.... wrote in message . .. On Sun, 1 Apr 2007 15:04:46 +0100, "George Dishman" Given that you now accept the huff-puff nature, you need to reconsider your justification for saying that Cepheids that are currently thought of as isolated might actually be part of a binary. Every one I read about seems to have a companion star. Put "solitary cepheid" into Google and you get a number of hits. At least one was a survey listing both categories with similar numbers of entries. I looked it up earlier at work and don't have the reference here and it was in postscript but I'm sure you can find a readable version with a little hunting. I'm sure there are many that have very slow orbit periods. A thought just ocurred, are you perhaps seeing a bias by looking mainly at milliseond pulsars? These are fast because they get "spun up" by matter falling in from a companion. If you are now switching to say they are single stars, why on Earth would your software be modelling binary systems and restricting the solutions to Keplerian orbits when the motion of the surface is due to internal pressure? I think it is my turn to say you are getting very confused Henry. It is a fact that most 'cepheids' appear to have a companion... It is a fact that something around half of _all_ stars are in binary systems so there is no reason why Cepheids should be an exception. ...all stars are obiting some kind of mass centre. They all orbit the galaxy, so what. The orbital period needs to be a few years or less for any significant effects to show up. They orbit all kinds of objects, not just the galaxy...and other objects orbit them. Many orbits will involve more than one other object and will be unstable. The question remains, so what? other than in fairly tight binaries and near misses of unbound objects, the speed and acceleration will be too low to produce any significant brightening. .... leading to a brightness variation as they orbit....but that wouldn't account for the short periods of many of them. It wouldn't account for any where the period of the Cepheid differs from the orbital period, nor does it account for those that are not in binary systems. That is true. That's why I accept the possibility. However it doesn't make any difference to the fact that the brightness variation of huff-puff stars conforms with BaTh. First you need to model them correctly. Your new program should do that if you match the red velocity curve to the published data. The grreen curve then gives the luminosity variation due to c+v and any extra is intrinsic. So Henry, revisit your matches and tell me how much is c+v and how much is intrinsic for some examples 1.5 magnitude variation It isn't difficult to produce variations of 1.5 mag. ..but 3 is about the limit with the BaTh before the critical distance is reached and the curves become peaked. Try it now that your program shows the red and blue curves separately. Take a Cepheid you think you can model with a varation of 1.5 mag or more, match the red curve to the velocity profile and tell me how much variation the green curve predicts. The remainder is intrinsic. There still appears to be no theory that explains any intrinsic brightness variation of huff-puff stars. This is a slightly better introduction than the bulk: http://www.astro.utoronto.ca/~mhvk/AST221/pulsators.pdf In every paper I have read about cepheids, the authors admit the have no theory to link the surface movement to the brightness curve. I won't comment on that without doing some study for myself. The theories involved would include thermodynamics, radiation pressure, fluid dynamics and the bit that a lot of simpler pages leave out is the importance of opacity. The stellar structure forms a relaxation oscillator. George |
#646
|
|||
|
|||
![]()
On 4 Apr 2007 08:36:02 -0700, "George Dishman"
wrote: On 3 Apr, 00:36, HW@....(Henri Wilson) wrote: On Mon, 2 Apr 2007 22:22:12 +0100, "George Dishman" wrote: "Henri Wilson" HW@.... wrote in message I am pointing out that no observations contradict that view while if ballistic theory was correct you would expect many violations, such as multiple images from binaries. That idea went out the window long ago. No, it is still true. You have to bodge in an ad hoc speed equalisation to cover it up because the observation contradicts Ritz's theory. Observations based on grossly wrong velocity values. George, you obviously don't even understand your own stupid theory. IT SAYS JUST WHAT I WROTE ABOVE. Don't deny it. Sorry Henry, shouting doesn't make errors any less wrong. I know you are aware of this, I have corrected you on it dozens of times over what must be nearly a decade now. George, SR says that light emitted from differently moving source at the same point will travel through space at the same speed . There you are you see, you DO know the correct postulate. George, you know the words but you obviously haven't translated them into a physical model. Einstein's second postulate clearly implies that light from differently moving sources travels through space at the same speed. Do you deny that? Is it not plain aether theory? Are you now denying the very existence of Einstein's second postulate? Speed isn't the key part, remember you said there was no phase shift for zero distance where the VDoppler should dominate so clearly you had a fundamental error. We need to know the phase so your program was unusable at that point. We don't need to know the phase. Yes we do, that is the key as I have been telling you for several weeks, it allows you to distinguish VDoppler from ADoppler which is hard to do any other way unless you are lucky enough to have an eclipsing situation. I have already done that. I gave you the figures. ...but they are just a geometric phenomenon. True but very useful nonetheless. How do you know the claimed Shapiro effect is not something to do with the brightness variation of the dwarf? SR, LET and BaTh produce almost the same VDoppler shift for speeds c. You should know that. So what, the curve that is matched is the change of the orbit resulting from the energy loss through gravitational radiation. I'm reasonably happy with the idea of energy loss due to a number of factors....although I'm sure matter falling into the pulsar would also slow it down. In PSR1613 there isn't much matter transfer AFAIK though in other systems it is very important. The effect on the orbit is probably slight but the effect on the spin is to increase it significantly. That's how millisecond pulsars are created. They are created in a region of space that happens to have a net angular momentum in a particular sense. As you know, they usually move quite rapidly away from their points of origin. That obviously means that they could regularly find themselves in regions of space in which the angular momentum was in the opposite direction. ..hence falling matter would slow them down. I realise relativists only want to be aware of things that are likely to support their views but really George, your last claim was a little too ridiculous. Fine, you were the one claiming it was circular. I have to compare its curve with a sine wave and look at residuals. . The curve matches a Keplerian ellipse withe the conventional analysis. I would expect it to match a different ellipse with ballistic theory though perhaps not too different depending on your extinction distance. It certainly depends on the distance. At large distances the differences are obvious but at small ones, a true comparison is required. http://www.sciencedaily.com/releases...0303204842.htm there are many theories George. Nobody really has much of a clue. Not too many Henry, the differences tend to be in the details rather than the general mechanism, though obviously different mechanisms apply to different bands, RF and gamma needn't come from the same source. Maybe, but you don't have the faintest idea how to come up with an alternative that actually explains what we see. 'What we see' is the willusion of what happens. Explaining WHAT IS REALLY HAPPENING is not easy George. It is quite easy Henry, the system emits gravitational radiation exactly as Einstein's maths predicts. Oh crap! As the pope said to allah, ... Do you think your tirades have any effect other than to make you look more like a crank? It is a hard mathematical fact that the curve exactly matches the equations and there isn't the slightest reason to doubt that they tell us exactly what is really happening. .. "if the faith is strong enough, you can find evidence for it everywhere you look". ![]() Yep, it is only your religious fervour for ballistic theory that forces you to ignore all the real evidence. The plain evidence is that light from differently moving sources COULD NOT and does NOT travel across space at the same speed....as Einstein's second postulate claims. Don't you think there might be some degree of magnetic damping? That is one factor slowing the spin rate which is around 10^-20 s/s for typical millisecond pulsars but the orbital frequency is vastly lower so the effect would be correspondingly smaller too. I suppose that figure was produced by subtracting the GR prediction form te observed one. ![]() Very funny George. I suggest many possibilities but you never listen. I listen but so far they have all been laughable. They're no funnier than your claim that Einstein's second postulate doesn't really operate .. More delusions Henry. You said it.... even though you have staked your whole reputation on the theory that follows it. ROFL, I have staked _nothing_ Henry, all theories are only ever the best currently available equations and the aim of science is to replace them. Yopu really don't seem to understand what it is all about. Everything you have said here gives the impession that you are a firm supporter of LET. It was in the non-rotating frame Henry, have you got that now? It took into account all the factors in your diagram. Photon axis, Quantised, not a vector - cannot delay modulation. centrifugal force, Stupid idea, it doesn't exist or it would show up all over the place and it would have to reduce the speed to near zero to explain the experiment. sideways displacement Stupid suggestion because it doesn't change the phase or delay the signal in any way. ....etc, etc.... Yep, as I said all laughable. ....and we never quite worked out what happens at each reflection. We could argue about THAT forever. ..and it still showed that a fringe shift should occur. No, it showed there would be _no_ shift. That's why you had to go looking for alternatives. I'm not discussing it futrther here. Indeed, it isn't relevant to the pulsar topic. correct. They measure the bunching of pulses from J1909-3744 and assume it is caused by conventional VDoppler! Which your model will confirm when you do the analysis thoroughly. The analysis IS thorough and it demonstrates my point perfectly. Nope, you haven't got a match to the orbital phase at the same time as the red velocity curve yet, or maybe you haven't told me what parameters do that. I still can't understand their claims about phasing. I might rewrite my yaw angle definition so that its sense and zero point coincide with the official one. That's pretty easy. All doppler calculated velocities are likely to be very wrong. If you had done the analysis, you could tell me the exact error. Then they arrive at velocities that are grossly exaggerated. Surely you can see that by now. I'm waiting for you to work out what parameters will match the observations. I have given you hints about what the answers will turn out to be but you need to do it yourself, I know you won't believe what I tell you without confirming it for yourself. I've already done it for J1909-3744. For a distance of 3Lys, the (orbital velocity x cos(pitch)) = about 30 m/s. (for a bunching factor, 1 in 10^4) This implies that the pulsar is in a quite small orbit that is somewhat face on. Then you haven't got a match because that requires a stellar mass that is three order of magnitude too high. I don't believe ytou have matched the effect that looks like a Shapiro delay either but you need to show the relevant curves for that. I might get around to it some time. So where DOES the supposed Shapiro peak occur? It happens when the LoS passes close to the companion as shown in the diagram: http://www.physorg.com/news9837.html That's 180 out. No, that diagram matches what we se in the Solar system. In the observations, it is at a phase of 0.25 (90 degrees) which is when the Doppler is zero and rising as the source is at its greatest distance from us. See figure 1 of: Where does it say doppler is zero at that point? Where is says the eccentricity is 10^-7. That gives close enough to a circular orbit. http://www.arxiv.org/abs/astro-ph/0507420 Theories, theories, ... No Henry, when are you going to learn what that word means. George...all based on the wrong velocity figures. You may be thinking of an older problem of brightness phase relative to velocity which I suspect has been cleared up. Here I mean the observed phase is not compatible with the Doppler being mostly ADoppler, it needs to be predominantly VDoppler. I don't know what the starting phase is in the above figure. I don't understand their phasing at all. Something is 90 out wrt something else yet longitude of periastron (deg) = 155.7452858095 ± 7. What are these two 'somethings'? That in itself isn't a problem, it simply gives an upper limit to the speed equalisation distance. OK, I understand what you are saying but I can't relate it to this figure. Hopefully you now know how the terms relate to yours from our other discussion. George Einstein's Relativity - the greatest HOAX since jesus christ's mother. |
#647
|
|||
|
|||
![]()
On 4 Apr 2007 06:03:49 -0700, "George Dishman"
wrote: On 3 Apr, 00:38, HW@....(Henri Wilson) wrote: On Mon, 2 Apr 2007 22:25:42 +0100, "George Dishman" wrote: "Henri Wilson" HW@.... wrote in message Try to take more care with your terms henry, the theory is GR. That the orbit is elliptical and precessing is the best model fit. If the faith is strong enough George, you will find evidence of it everywhere. You are a prime example, but that is beside the point, you should still know what the words "theory" and "model" mean and be able to use them correctly. George, just show me evidence that light from differently moving sources really does travel at the same speed through space. Einstein's Relativity - the greatest HOAX since jesus christ's mother. |
#648
|
|||
|
|||
![]()
On Wed, 4 Apr 2007 09:40:25 +0100, "OG" wrote:
"Henri Wilson" HW@.... wrote in message .. . On Wed, 4 Apr 2007 00:28:34 +0100, "OG" wrote: On the contrary - you need to explain yourself So 3 questions What is BaTh ? What is extinction and how precisely does it prevent fast light from catching up slow light? What is your explanation for the variable light curve of cepheids I'm away from fast internet for the next few days so you can take your time over these answers. Why should I bother to answer at all? No reason - if you don't want to support your claims, I can't force you to. You are in the position of wanting to promote your hypothesis, if you don't want to support it . . . It is in constant process of being supported. If you want to enlarge on Einstei's second postulate then please do. Tell me how and why light from differently moving sources should travel at the same speed through space. Einstein's Relativity - the greatest HOAX since jesus christ's mother. |
#649
|
|||
|
|||
![]()
On Wed, 4 Apr 2007 22:23:12 +0100, "George Dishman"
wrote: "Henri Wilson" HW@.... wrote in message news ![]() On Mon, 2 Apr 2007 22:34:19 +0100, "George Dishman" wrote: "Henri Wilson" HW@.... wrote in message ... On Sun, 1 Apr 2007 15:04:46 +0100, "George Dishman" Given that you now accept the huff-puff nature, you need to reconsider your justification for saying that Cepheids that are currently thought of as isolated might actually be part of a binary. Every one I read about seems to have a companion star. Put "solitary cepheid" into Google and you get a number of hits. At least one was a survey listing both categories with similar numbers of entries. I looked it up earlier at work and don't have the reference here and it was in postscript but I'm sure you can find a readable version with a little hunting. I'm sure there are many that have very slow orbit periods. A thought just ocurred, are you perhaps seeing a bias by looking mainly at milliseond pulsars? These are fast because they get "spun up" by matter falling in from a companion. They are fast because the stuff that made them had some net angular momentum. They all orbit the galaxy, so what. The orbital period needs to be a few years or less for any significant effects to show up. They orbit all kinds of objects, not just the galaxy...and other objects orbit them. Many orbits will involve more than one other object and will be unstable. The question remains, so what? other than in fairly tight binaries and near misses of unbound objects, the speed and acceleration will be too low to produce any significant brightening. That depends entirely on distance. ...although extinction plays a part. Time compression can occur at large distances. I'm now of the opinion that not much unification occurs in intergalactic space (below the WDT). Most occurs within the confines of a galaxy....particularly near the source.....but this could vary enormously from one situation to another. It isn't difficult to produce variations of 1.5 mag. ..but 3 is about the limit with the BaTh before the critical distance is reached and the curves become peaked. Try it now that your program shows the red and blue curves separately. Take a Cepheid you think you can model with a varation of 1.5 mag or more, match the red curve to the velocity profile and tell me how much variation the green curve predicts. The remainder is intrinsic. As a result of my dropping the 'incompressible photon' theory the red curve has now been replaced by the green one. There still appears to be no theory that explains any intrinsic brightness variation of huff-puff stars. This is a slightly better introduction than the bulk: http://www.astro.utoronto.ca/~mhvk/AST221/pulsators.pdf George, have a look at their velocity and brigtness curves, about half way down. Do you notice something? In every paper I have read about cepheids, the authors admit the have no theory to link the surface movement to the brightness curve. I won't comment on that without doing some study for myself. The theories involved would include thermodynamics, radiation pressure, fluid dynamics and the bit that a lot of simpler pages leave out is the importance of opacity. The stellar structure forms a relaxation oscillator. That's the theory. Nobody will ever get close enough to have a good look at one though. George Einstein's Relativity - the greatest HOAX since jesus christ's mother. |
#650
|
|||
|
|||
![]()
On 4 Apr 2007 02:49:56 -0700, "George Dishman"
wrote: On 4 Apr, 09:51, HW@....(Henri Wilson) wrote: On 4 Apr 2007 00:30:36 -0700, "George Dishman" wrote: On 4 Apr, 00:17, HW@....(Henri Wilson) wrote: Nobody claimed it was in line with any GR predictions, you said it was "exactly what the BaTh predicts". That paper you referred me to claimed it was. I'm surprised but I don't have that one handy. Are you sure you aren't thinking of the Hulse and Taylor paper? Pulsar rate slowing is due to the magnetic field and I don't think GR even comes into it, nor does ballistic theory AFAICS. Every second paper I read about pulsars makes some kind of claim that they support GR. That's because they are a very good vehicle for testing GR in strong field conditions that are hard to produce other ways. No, it's because relativists are becoming desperate. Why is it still so important to 'prove' GR ... Because in science any theory is only trusted in regions that have been tested. The more extreme the conditions under which it is tested, the more we can be sure the predictions will be accurate. Also there is always the hope that some small deviation will be found which can be the beginning of the next theory. That's how science works. Well I might suggest tha BaTh is the one that will replace all of ths nonsense that has prevailed for over 100 years. ... when people like yourself are absolutely sure it is correct? Who said I was sure it was correct? I am fairly sure it will need changes to accomodate QM and may need a change to explain dark energy (not dark matter though). You also need change to accommodate the absolute aether that you obviously require to make the theory work. Let's see the maths Henry. If you are right then you can add that curve to you program and then we will see if you can really match the curves. George, I don't believe the pulses originate anywhere near the neutron star itself. Running away Henry? Show me the maths that led to your conclusion. The obvious fact is that they would be traveling at maybe c/2 towards Earth if they did. They would be extremely redshifted. Maybe they are! Maybe they start out as UV moving at c/2 wrt us. I don't believe the effect to which you are refering is necessarily a shapiro type effect. I am not going to continue to speculate about something I don't believe happens. Fine, if you think you can match the curves without it but you will then be in the position of explaining why something that does happen in the Solar system doesn't happen in the double pulsar system where we know they are in an eclipsing configuration. Until I can find more indo about the dwarf - eg, its brightness curve and spectral data - I wont comment. George, the pulse we detect is NOT just a magnetic one. Somewhere along the line EM is generated and sent in many directions. Hte theory says something about charges being moved along the magnetic field. That doesn't add up because charges would more likey want to move ACROSS the field. Correct, in fact the charges move in spirals around a field line which means it is highly accelerated which means they radiate. It is called syncrotron radiation as Jerry told you. OK maybe..but how far away from the neutron star does this occur. I say it could continue for LYs. No, the excitation would take far too long to decay and the pulse would probably have a longer tail. theories, theories..... Common sense Henry, you cannot heat up a stellar mass and cool it down again in 45 microseconds. Get real for goodness sake. It isn't a stellar mass. It's a pocket of gas...being momentarily ionised as the beam flashes through. You know you can say just about anything because nobody is going up there to prove you wrong. There are nuts out there who will argue almost anything. That's funny coming from you George. No. The BaTh expects the same kind of delay due to bending and increased light path lengths. I was wrong about the 180 difference. OK, so now show me the maths you used to find that there is an overal delay. It should be the same as the GR delay ... Nope, if you do the maths, it is an advance. As I asked, if you disagree, show me your calculation. The calculation should produce GR's result..or thereabouts. The terms are fairly standard and you should be able to convert to other angles easily. These should help: http://en.wikipedia.org/wiki/Longitu...ascending_node you see I don't use this convention. Maybe not but you need to understand it if you want to know what a longitude of periastron of 155 degrees means in your terms. yes I'll try to translate it. It is my Yaw angle...opposite sense and their zero is my 90. So 155 is my -65 deg Yaw angle, I think. It should be something like that. Given the conventional eccentricity is 10^-7, the curve must be so close to a sine wave it doesn't matter for J1909-3744 but it will matter when you look at PSR1316 and J0737-3039. I'll get around to it eventually...still working on the program at present. and the pulses should start out at maybe c/2. ...this is why I don't believe the pulses are actually produced near the pulsar itself but at a considerable distance away. The slow initial speed would just give an overall distance value that is higher than actual, but only by a few light hours at most and we don't know the distance better than tens of light years, and since the error would be constant, it doesn't have any effect we can measure. So you still believe the speed aof all the emitted light miraculously adjusts to c wrt little planet Earth, do you George? c wrt the 'space'through which it is travelling. That is what your "extinction" (or "speed equalisation" as I prefer to call it) means, isn't it? No George. That's your aether idea. Mine is 'speed wrt other light going in the same direction'. 'Speed' is not a good word though...better to say, "the relative positions of photons moving in any one direction tend to become stabilized with distance". I am discussing J0737-3039 which is a double pulsar system with an eclipse. The velocity curve should be easy to find or perhaps figure out from the orbital elements (as before work back using conventional theory to find the observations then re-interpret using ballistic theory). I'll see what I can find. OK. If you can add a curve for the ballistic theory Shapiro effect, then we can really see how well you can match the observations. I have finally managed to use your method to add the contributuons of two members of a binary. The programming has nearly driven me up the wall. Neat but I think we generally only need to treat them separately, at least for pulsars and Cepheids. Probably....and many variables are orbitted by a WCH. Spectroscopic binaries where only a composite light curve is available would be a different matter of course. Yes. These can be interesting. Anyway have another look at that reference you gave to the brightness and velocity curves of cepheids. It is exactly what I have been saying., They are the same curve...the only differences being due to contributions from the other member of the pair. This is really terrific evidence in favour of the BaTh. George Einstein's Relativity - the greatest HOAX since jesus christ's mother. |
Thread Tools | |
Display Modes | |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
Fixed for a price? | [email protected] | Amateur Astronomy | 5 | May 18th 05 06:33 PM |
Spirit Fixed! | Greg Crinklaw | UK Astronomy | 1 | January 25th 04 02:56 AM |
Spirit Fixed! | Greg Crinklaw | Amateur Astronomy | 0 | January 24th 04 08:09 PM |
I think I got it fixed now. | Terrence Daniels | Space Shuttle | 0 | July 2nd 03 07:53 PM |
I think I got it fixed now. | Terrence Daniels | Policy | 0 | July 2nd 03 07:53 PM |