NoWorries
Topic Author
Posts: 493
Joined: Fri Oct 27, 2006 2:55 am

Supermassive Black Holes And Hot Galaxies

Thu Aug 30, 2012 2:43 pm

Interesting article here about massive back holes that had previously gone undetected.

The article doesn't mention it, but could this be some the missing dark matter that astrophysicists have been searching for ...

http://www.bbc.co.uk/news/science-environment-19421453
 
nomadd22
Posts: 1566
Joined: Fri Feb 22, 2008 7:42 pm

RE: Supermassive Black Holes And Hot Galaxies

Thu Aug 30, 2012 6:15 pm

Quoting NoWorries (Thread starter):
The article doesn't mention it, but could this be some the missing dark matter that astrophysicists have been searching for ...

No it couldn't. Dark matter masses more than visible matter by a good factor. A few thousand extra black holes per galaxy would be an insignificant amount of mass compared to that. Ten million stellar black holes in every galaxy wouldn't be significant compared to the amount of dark matter they need to balance things out.
Anon
 
Oroka
Posts: 1077
Joined: Sat Dec 09, 2006 4:37 am

RE: Supermassive Black Holes And Hot Galaxies

Fri Aug 31, 2012 3:54 am

I suspect there are ALOT more stellar black holes hiding out in plain sight... well, you know. The first few generations of stars would have been O class stars, big enough to create black holes... a lot probably merged to become supermassive, but im sure there are a lot still floating around minding their own business.
 
maxter
Posts: 179
Joined: Sun May 24, 2009 2:23 am

RE: Supermassive Black Holes And Hot Galaxies

Thu Sep 06, 2012 11:20 am

Roll on a decent gravity wave detector... I wonder of the one offered to Western Australia by the US will get legs and be built.
maxter

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