On Wed, Apr 4, 2012 at 9:33 AM, <erikhansen@thebluezone.net> wrote:
Are Black Holes "Dark Matter"? Did not the Accelerating Universe raise some questions about how much dark matter there may be?
This discovery or theory only explains how Black Holes grow in mass rapidly.
I was extrapolating beyond the accretion issue, Erik. Think about it. If a supermassive black hole has swallowed a few million stars during it's lifetime, there must be millions of others that have been ejected from the host galaxy at hypervelocity as a result (along with any close-orbiting planets they may have had). There's still some feeling that a lot of the dark matter may just be ordinary intergalactic dwarf stars and planets, too dim to be detected- yet. The MACHO microlensing surveys haven't turned up the numbers expected, but again, that may be a shortcoming of the available technology rather than a meaningful statistic. And speaking of black holes (or their alternative), has anybody heard of any more theoretical work on modeling gravastars in the last few years?