Re: Galaxy formation theories challenged

Dear Yousuf Khan:

"Yousuf Khan" <bbbl67@xxxxxxxxx> wrote in message
news:49e22464$1@xxxxxxxxxxxxxxxxxx
N:dlzc D:aol T:com (dlzc) wrote:
"Yousuf Khan" <bbbl67@xxxxxxxxx> wrote in message
How's that possible? The universe should be mainly
Hydrogen and Helium.

It isn't entirely oxygen, but a good deal of it is.
http://www.physorg.com/news130516845.html

I understand that they detected some Oxygen ions in
the sprectra, but primarily Oxygen? I doubt it.

Even 25% would give the wrong "signature".

Well, that link didn't give any percentages of how
much oxygen there is out there in the intergalactic
medium. The oxygen is mainly ionized plasma, so
it's probably skewed by the fact that plasma is
probably more photo-active than non-ionized atoms.

Probably not more photoactive, just a different set of absorption
bands.

They did mention they think most of it came from
supernovas from nearby galaxies.

They sighted (in some cases) across large voids. The only
"nearby" galaxies are at the endpoints of emission and
adsorption.

Though there is a lot of matter that can come out
of supernovas, is it enough to fill the intergalactic
medium?

The "missing matter" is more than all the galaxies we have seen
combined. We expect it to be diffuse...

We *found* cold hydrogen galaxies.
http://www.spacedaily.com/news/darkmatter-05h.html
... (wasn't Dark Matter, just cold hydrogen).

I know, but they are still claiming that most of that cold
hydrogen has to be kept together by Dark Matter, of
course.

Yes, well...

It's kind of interesting that there are galaxies of
hydrogen gas that haven't formed completely into stars,
even now. Wonder if these will be the last galaxies in
the universe to ignite,

Or just the next in a series...

just as the universe smooths itself out to a cold flat
state? The last gasp of matter.

Yes, a lot of good questions, for another century or more
research...

If as you say, most of the intergalactic gas is
Oxygen, then where are the dark galaxies or
free-roving black holes going to find their
hydrogen?

Hawking Radiation, or those fascinating polar jets...

So through Hawking Radiation, you think the black
hole is going to produce enough free protons to
create a whole star, let alone a galaxy's worth of
stars?

I don't propose to have the answers. But most of the clusters of
stars, are clustered around / with black holes. Granted "simple"
gravitational collapse answers that need. But, we imagine huge
accretion disks to explain the large amount of radiation that are
released... what if they are white holes instead... the end of
the pipeline instead of the beginning?

Or not.

David A. Smith


.

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