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This Week's Finds in Mathematical Physics (Week 224) by Charles Francis
Thus spake Oz John Baez writes 18) Ring around a galaxy, HubbleSite News Archive, May 6,...
December 22nd 05 08:55 PM
by Charles Francis Go to last post
0 665
This Week's Finds in Mathematical Physics (Week 224) by [email protected]
I like this version of the picture of M87. http://imgsrc.hubblesite.org/hu/db/2000/20/images/a/formats/large_web.jpg and the comparison between optical, Xray...
December 22nd 05 08:54 PM
by [email protected] Go to last post
0 637
CBR & QCD by Charles Francis
There is a CMB and also a neutrino background. Does QCD imply that there is also a cosmological gluon background? If not, why not? If so, how much energy would...
December 22nd 05 12:55 PM
by Charles Francis Go to last post
5 447
This Week's Finds in Mathematical Physics (Week 224) by Charles Francis
Thus spake Oz John Baez writes 18) Ring around a galaxy, HubbleSite News Archive, May 6,...
December 21st 05 02:48 PM
by Charles Francis Go to last post
0 587
This Week's Finds in Mathematical Physics (Week 224) by Oz
John Baez writes 18) Ring around a galaxy, HubbleSite News Archive, May 6,...
December 20th 05 08:58 PM
by Oz Go to last post
0 596
Xvista, the next generation. by Omri Schwarz
Hi, all. (Seems sci.astro isn't the place to post it, so here goes.) Having failed utterly to build Xvista for newer versions of Solaris (9 & 10), I am...
December 15th 05 09:56 AM
by Omri Schwarz Go to last post
0 697
Reference for V.V. Vityazev Needed by Brenneman
Hi, I am trying to track down 2 references of V. V. Vityazev down with no luck so far. He wrote a paper in 1997 on the differences between the Lomb-Scargle...
December 14th 05 04:56 PM
by Brenneman Go to last post
0 453
woe betide the heretic ... by Aidan Karley
On the subject of heresies, as I tuck into a slice of deep-fried Bob Bakker (geologist's joke), I wonder what Halton Arp is up to these days? Still asking...
December 13th 05 09:51 AM
by Phillip Helbig---remove CLOTHES to reply Go to last post
8 1,032
Earth's Past Perihelion Distance by Rodney
A number of years ago, Dr. Andre=B4 Berger of the Institut d'Astronomie et de Ge'ophysique at the Universite=B4Catholique de Louvain (Belgium) calculated that...
December 13th 05 09:49 AM
by Rodney Go to last post
5 762
Dayton Miller's Data have no Real Signal by Tom Roberts
In the 1920's and 30's Dayton Miller made an enormous number of measurements using several versions of his Michelson interferometer. In 1933 he published a...
December 11th 05 01:05 PM
by Aidan Karley Go to last post
1 878
polarised light off plane glass by nytecam
Does anyone know the angle at which light reflected off plane glass is at maximum polarisation? Did some quick experiments this morning and the angle seems...
December 5th 05 11:11 AM
by nytecam Go to last post
0 586
Missing mass by Charles Francis
Can anyone give me correct figures on missing mass? I think we actually observe less than 3% critical mass, plus a bit in CDM haloes. That leaves about 27%...
November 30th 05 02:22 PM
by Charles Francis Go to last post
0 784
Scientists find possible birth of tiniest known solar system by [email protected]
Astronomers report a tiny "failed star" possibly in the process of forming a solar system a hundredth the size of our...
November 30th 05 12:22 PM
by [email protected] Go to last post
0 752
Recurrence of a lunar phase by Michael
The day of the full moon occurs on the 16th of this month (Nov '05). When will it next fall on the same day of the month? In other words, how often does a...
November 28th 05 09:38 PM
by Ray Tomes Go to last post
2 740
# of star generations needed to produce observed element abundances by Steve Willner
In article , " writes: What's the approximate lifetime of these stars No one...
November 28th 05 09:37 PM
by [email protected] Go to last post
2 579
CMB temperature at different ages by Aidan Karley
A discussion elsewhere lead me to wonder what the temperature of the CMB was at about the time that Jupiter was forming. (I was wondering how the different...
November 23rd 05 09:29 AM
by Phillip Helbig---remove CLOTHES to reply Go to last post
4 1,394
defintion of "stellar velocity dispersion" by [email protected]
I have a naive question on how exactly astronomers define stellar velocity dispersion. I was trying to understand some of the classic papers...
November 22nd 05 09:52 AM
by [email protected] Go to last post
0 600
CMB temperature at different ages by Steve Willner
In article , writes: ... the present CMB temperature...
November 21st 05 10:29 PM
by Steve Willner Go to last post
0 607
# of star generations needed to produce observed element abundances by Steve Willner
In article , writes: My question is this - approximately how many "generations" of stars needed...
November 21st 05 02:20 PM
by [email protected] Go to last post
1 544
Conjecture on Baez's 'Quasar without a host galaxy' by Steve Willner
In article , "Robin Whittle" writes: A more reliable source of information about quasar...
November 21st 05 10:08 AM
by Jonathan Silverlight Go to last post
7 650
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