dark matter, again

[Tinaa]

I am reading a book by John Gribbon. He wrote about how the galaxies we see today are just the "left over embers of the glory of the hot fireball, flickering amongst the ash of dead cold matter ten times as extensive as the bright stars." 1

Could the dark matter just be the dead star matter hanging around the edges of the galaxies? Not exotic at all. Is dark matter just a place to bury the corpses. Is our universe old enough to have such a large graveyard?


1 Gribbon, John. The Case of the Missing Neutrinos Fromm International Publishing, London 1998 pg. 128.

[damienpaul]

Interesting thought, maybe just maybe that is the case....is there substantive evidence for it?

[Tinaa]

He wrote that since we have a pattern of galaxies that isothermal (matter density) fluctuation won the race against adiabatic (matter and radiation density)fluctuation. If it were the other way around we'd have a gaseous universe without stars and galaxies. I'm going to see if I can find some more about it.

[damienpaul]

wow, thats an interesting and rather major 'what if..'

[Littlemews]

Could the dark matter just be the dead star matter hanging around the edges of the galaxies? Not exotic at all. Is dark matter just a place to bury the corpses. Is our universe old enough to have such a large graveyard?

very interseting :) as I know Dark Matter is an high velocities stard far away from the center caused by gravitaional attraction of unseen matter.

Is our universe old enough to have such a large graveyard?
:lol: if there is no graveyard, then there is no dead star in the universe...dead star (e.g Black Hole)

[Tinaa]

I found a few things:

here (http://news.bbc.co.uk/1/hi/sci/tech/1236460.stm), and here (http://www.nature.com/nsu/000511/000511-9.html)

[damienpaul]

so indeed it could be like an elephant's graveyard out there

[Littlemews]

hmm interseting...this is what I think : maybe that star has very lower luminosity, like 0.001, so can't see it :lol:

[Tinaa]

Why would there not be any dead stars? Our own star will become a white dwarf and even it cannot stay hot forever! I have no idea what you are talking about in reference to your definition of dark matter:

QUOTE]very interseting as I know Dark Matter is an high velovities stard far away from the center caused by gravitataional attraction of unseen matter[/QUOTE]

No one knows what dark matter is. That is one of the great mysteries!

[damienpaul]

and a truly compelling one....so is it possible for heaps of these dark stars to be lurking around?

[Tinaa]

check out the first link I posted.

[damienpaul]

a possible resounding yes....kinda stands to reason

[Littlemews]

:huh: only 5% available...95% missing

[damienpaul]

an awful lot of dead stars???

[Littlemews]

If a star have its own lifetime, then there must be alot of dead star...

[damienpaul]

thats what i am thinking