Re: How does this galaxy change formation theories?



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Topic: Science > Physics
User: ""
Date: 29 Sep 2005 03:15:54 AM
Object: Re: How does this galaxy change formation theories?
You asked:
"How does this galaxy change formation theories?"
I think that the present standard theory of galaxy
formation is WRONG. There is no cutoff in distribution
of H-M's black-holes "towards" the Big Bang start !!!
Hannu
Yousuf Khan wrote:

In this story:

http://www.space.com/scienceastronomy/050927_massive_galaxy.html

[quote]The galaxy, named HUDF-JD2, is seen as the universe was only
about 800 million years old. The universe today is about 13.6 billion
years old.

"This galaxy appears to have 'bulked up' amazingly quickly, within a
few hundred million years after the Big Bang," said Bahram Mobasher of
the European Space Agency and the Space Telescope Science Institute.
"It made about eight times more mass in terms of stars than are found
in our own Milky Way today, and then, just as suddenly, it stopped
forming new stars. It appears to have grown old prematurely."
[/quote]

If this young galaxy is so massive and so red like an old galaxy, would
that push back the age of the Universe several billion years?

Yousuf Khan

.

User: "Ian Parker"

Title: Re: How does this galaxy change formation theories? 29 Sep 2005 05:48:49 AM
I think there are enough theories to say there is really no standard
theory. Here is an expression of an alternative point of view. May be
right may be wrond.
http://groups.google.co.uk/group/sci.physics.relativity/browse_frm/thread/ade33bdd766b5a81/1ecff6e94de75e6c?lnk=st&q=*+*+dark+matter+group:sci.physics&rnum=5&hl=en#1ecff6e94de75e6c
Look at the contributions towards the end.
I think the recent discovery which will have a profound effect on
galaxy formation theory is the discovery of supermassive black holes
WITHOUT an associted galaxy. Now do galaxies develop black holes or are
black holes formed first. It must be the latter.
Is there such a thing as cosmic string and did it get swallowed up by
the black holes that eveloped along its length?
One thing that could be usefully done is to compare the power spectrum
of galaxy distribution against that predicted by cosmic string dynamics.
.


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