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Magnetic fields outside Galactic Clusters from Dark Matter?



 
 
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  #1  
Old December 21st 10, 04:21 AM posted to sci.astro,sci.astro.amateur,sci.physics
donna
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Posts: 4
Default Magnetic fields outside Galactic Clusters from Dark Matter?

http://www.liveleak.com/view?i=8e6_1...58&to_friend=1

Can dark matter composing of some dark substance can be the sources
of magnetic field in the middle of nowhere like outside galactic
clusters?
We are told that dark matter only interact with matter in the
gravitational
department. What if electromagnetic too and in subtle way? Refute this.
  #2  
Old December 21st 10, 04:39 AM posted to sci.astro,sci.astro.amateur,sci.physics
Sjouke Burry[_2_]
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Default Magnetic fields outside Galactic Clusters from Dark Matter?

donna wrote:
http://www.liveleak.com/view?i=8e6_1...58&to_friend=1

Can dark matter composing of some dark substance can be the sources
of magnetic field in the middle of nowhere like outside galactic
clusters?
We are told that dark matter only interact with matter in the
gravitational
department. What if electromagnetic too and in subtle way? Refute this.


Now if it interacted with(electro) magnetism somehow,
it would not be dark matter, would it?

The fact that it is called dark matter, is because it does
NOT interact, and therefore is invisible.

Only by the fact that space is found to curve light in places where
there is no visible galaxy, shows that something is there,
even though no visible stuff shows.
  #3  
Old December 21st 10, 04:51 AM posted to sci.astro,sci.astro.amateur,sci.physics
Sam Wormley[_2_]
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Default Magnetic fields outside Galactic Clusters from Dark Matter?

On 12/20/10 10:21 PM, donna wrote:
http://www.liveleak.com/view?i=8e6_1...58&to_friend=1

Can dark matter composing of some dark substance can be the sources
of magnetic field in the middle of nowhere like outside galactic
clusters?


No. See Maxwell's equations. Dark Matter appears not to interact
electromagnetically.

  #4  
Old December 21st 10, 05:03 AM posted to sci.astro,sci.astro.amateur,sci.physics
donna
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Posts: 4
Default Magnetic fields outside Galactic Clusters from Dark Matter?

http://www.universetoday.com/15856/a...than-expected/

The above is another news of how magnetic fields were in the universe
and stronger than
thought.

Going to Dark Matter. While it is true that dark matter is called dark
because they thought
it didn't interact electromagnetically. What if it does? Very very
weakly interacting such that
it can manifest on a galactic scale? Let's say dark matter is made up
of certain dark baryons
that interact with themselves and in certain configuration can give
rise to dark electromagnetic wave... now this dark em wave thru
certain configuration can become normal em wave. How do you refute
this? Just as normal matter can cause em wave... dark matter has its
own dark em
wave.. and because of some symmetric breaking.. coupling between these
two kinds of em
wave is possible. This means there is separate maxwell equations for
dark em wave.


On Dec 21, 12:51*pm, Sam Wormley wrote:
On 12/20/10 10:21 PM, donna wrote:

http://www.liveleak.com/view?i=8e6_1...58&to_friend=1


Can dark matter composing of some dark substance can be the sources
of magnetic field in the middle of nowhere like outside galactic
clusters?


* *No. See Maxwell's equations. Dark Matter appears not to interact
* *electromagnetically.


  #5  
Old December 21st 10, 05:20 AM posted to sci.astro,sci.astro.amateur,sci.physics
Sam Wormley[_2_]
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Posts: 3,966
Default Magnetic fields outside Galactic Clusters from Dark Matter?

On 12/20/10 11:03 PM, donna wrote:
Let's say dark matter is made up
of certain dark baryons...



See: http://www.astro.wisc.edu/~heroux/im...icle_chart.jpg
http://en.wikipedia.org/wiki/Standard_Model

Baryons are composed of three quarks. There are no stable free
uncharged baryon. Charged baryon interact electromagnetically.

  #6  
Old December 21st 10, 06:11 AM posted to sci.astro,sci.astro.amateur,sci.physics
donna
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Posts: 4
Default Magnetic fields outside Galactic Clusters from Dark Matter?

On Dec 21, 1:20*pm, Sam Wormley wrote:
On 12/20/10 11:03 PM, donna wrote:

Let's say dark matter is made up
of certain dark baryons...


* *See:http://www.astro.wisc.edu/~heroux/im...icle_chart.jpg
* * * *http://en.wikipedia.org/wiki/Standard_Model

* *Baryons are composed of three quarks. There are no stable free
* *uncharged baryon. Charged baryon interact electromagnetically.


What I meant to say was dark matter could be made up of q-balls.. but
since you
may not be familiar with q-balls.. I mentioned baryons... what are q-
balls... according to
wikipedia
http://en.wikipedia.org/wiki/Q-ball

"In theoretical physics, Q-ball refers to a type of non-topological
soliton. A soliton is a localized field configuration that is stable—
it cannot spread out and dissipate."...

"A Q-ball arises in a theory of bosonic particles, when there is an
attraction between the particles. Loosely speaking, the Q-ball is a
finite-sized "blob" containing a large number of particles. The blob
is stable against fission into smaller blobs, and against
"evaporation" via emission of individual particles, because, due to
the attractive interaction, the blob is the lowest-energy
configuration of that number of particles."

"It has been theorized that dark matter might consist of Q-balls
(Frieman et al.. 1988,[6] Kusenko et al.. 1997[7]) "

Now dark matter being made of Q-balls... and q-balls could interact
with each other forming dark
electromagnetism. And these could be sources of the magnetic field in
the middle of nowhere in
space. This is due to its plasma-like characteristics where it can
generate dark magnetic field
that can convert to our normal magnetic field in certain
configurations.
  #7  
Old December 21st 10, 06:24 AM posted to sci.astro,sci.astro.amateur,sci.physics
Sam Wormley[_2_]
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Posts: 3,966
Default Magnetic fields outside Galactic Clusters from Dark Matter?

On 12/21/10 12:11 AM, donna wrote:
On Dec 21, 1:20 pm, Sam wrote:
On 12/20/10 11:03 PM, donna wrote:

Let's say dark matter is made up
of certain dark baryons...


See:http://www.astro.wisc.edu/~heroux/im...icle_chart.jpg
http://en.wikipedia.org/wiki/Standard_Model

Baryons are composed of three quarks. There are no stable free
uncharged baryon. Charged baryon interact electromagnetically.


What I meant to say was dark matter could be made up of q-balls.. but
since you
may not be familiar with q-balls.. I mentioned baryons... what are q-
balls... according to
wikipedia
http://en.wikipedia.org/wiki/Q-ball

"In theoretical physics, Q-ball refers to a type of non-topological
soliton. A soliton is a localized field configuration that is stable—
it cannot spread out and dissipate."...

"A Q-ball arises in a theory of bosonic particles, when there is an
attraction between the particles. Loosely speaking, the Q-ball is a
finite-sized "blob" containing a large number of particles. The blob
is stable against fission into smaller blobs, and against
"evaporation" via emission of individual particles, because, due to
the attractive interaction, the blob is the lowest-energy
configuration of that number of particles."

"It has been theorized that dark matter might consist of Q-balls
(Frieman et al.. 1988,[6] Kusenko et al.. 1997[7]) "

Now dark matter being made of Q-balls... and q-balls could interact
with each other forming dark
electromagnetism. And these could be sources of the magnetic field in
the middle of nowhere in
space. This is due to its plasma-like characteristics where it can
generate dark magnetic field
that can convert to our normal magnetic field in certain
configurations.


OK - Thanks for the clarification.



  #8  
Old December 21st 10, 07:21 AM posted to sci.astro,sci.astro.amateur,sci.physics
Peter Webb[_2_]
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Posts: 927
Default Magnetic fields outside Galactic Clusters from Dark Matter?


"Sam Wormley" wrote in message
...
On 12/20/10 11:03 PM, donna wrote:
Let's say dark matter is made up
of certain dark baryons...



See: http://www.astro.wisc.edu/~heroux/im...icle_chart.jpg
http://en.wikipedia.org/wiki/Standard_Model

Baryons are composed of three quarks. There are no stable free
uncharged baryon.



Somebody should tell the neutron that it doesn't exist.


Charged baryon interact electromagnetically.


  #9  
Old December 21st 10, 07:43 AM posted to sci.astro,sci.astro.amateur,sci.physics
Eric Gisse
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Posts: 1,465
Default Magnetic fields outside Galactic Clusters from Dark Matter?

On Dec 20, 8:21*pm, donna wrote:
http://www.liveleak.com/view?i=8e6_1...58&to_friend=1

Can dark matter composing of some dark substance can be the sources
of magnetic field in the middle of nowhere like outside galactic
clusters?
We are told that dark matter only interact with matter in the
gravitational
department. What if electromagnetic too and in subtle way? Refute this.


Electromagnetism is not magic. Dark matter simply does not interact
electromagnetically.
  #10  
Old December 21st 10, 01:12 PM posted to sci.astro,sci.astro.amateur,sci.physics
[email protected]
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Posts: 148
Default Magnetic fields outside Galactic Clusters from Dark Matter?

On Dec 20, 10:11*pm, donna wrote:
On Dec 21, 1:20*pm, Sam Wormley wrote:

On 12/20/10 11:03 PM, donna wrote:


Let's say dark matter is made up
of certain dark baryons...


* *See:http://www.astro.wisc.edu/~heroux/im...icle_chart.jpg
* * * *http://en.wikipedia.org/wiki/Standard_Model


* *Baryons are composed of three quarks. There are no stable free
* *uncharged baryon. Charged baryon interact electromagnetically.


What I meant to say *was dark matter could be made up of q-balls.. but
since you
may not be familiar with q-balls.. I mentioned baryons... what are q-
balls... *according to
wikipediahttp://en.wikipedia.org/wiki/Q-ball

"In theoretical physics, Q-ball refers to a type of non-topological
soliton. A soliton is a localized field configuration that is stable—
it cannot spread out and dissipate."...

"A Q-ball arises in a theory of bosonic particles, when there is an
attraction between the particles. Loosely speaking, the Q-ball is a
finite-sized "blob" containing a large number of particles. The blob
is stable against fission into smaller blobs, and against
"evaporation" via emission of individual particles, because, due to
the attractive interaction, the blob is the lowest-energy
configuration of that number of particles."

"It has been theorized that dark matter might consist of Q-balls
(Frieman et al.. 1988,[6] Kusenko et al.. 1997[7]) "

Now dark matter being made of Q-balls... and q-balls could interact
with each other forming dark
electromagnetism.


Let's see, Q-balls comprise large (what value of "large"?) numbers
of bosons with an attractive interaction. That lets out photons except
for ridiculously high flux.

I'm not convinced gravitons (or gravitinos) exist at all but if they
do, I'm fairly sure that they can form Q-balls.

The weak nuclear force and the color force are (allegedly) only
short-range.

Q-balls made up solely of weak bosons would have mass and various
values of spin, and can take various values of electric charge. They'd
also have very obvious magnetic fields.

Can gluons exist without quarks to terminate them? If so, gluonic Q-
balls are possible.

And these could be sources of the magnetic field in
the middle of nowhere in
space. This is due to its plasma-like characteristics where it can
generate dark magnetic field
that can convert to our normal magnetic field in certain
configurations.


You're suggesting that Q-ball currents will produce "dark" Q-
magnetic fields (to coin a phrase) the way ordinary charge currents
produce ordinary magnetic fields? And that by some natural process(es)
Q-magnetic fields can convert to observable electromagnetic fields?

How would you characterize those Q-fields? Gluonic Q-balls should be
electrically neutral and color neutral, but have positive mass, spin,
and possibly weak charge. What happens when something like that is
accelerated? What *can* accelerate it to produce a current of it in
the first place?

Bottom line for me, how does one build an Q-magnetic-to-
electromagnetic field transducer (telescope)?


Mark L. Fergerson
 




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