Number and Entropy of Halo Black Holes

Details Number and Entropy of Halo Black Holes Number and Entropy of Halo Black Holes

2009-10-07

arxiv.org/abs/0910.1152v1

Astropart.Phys.34:617-619,2011

Astronomy and Astrophysics

Astrophysics

Galaxy Astrophysics

9 pages latex

Scientific paper

10.1016/j.astropartphys.2010.11.

Based on constraints from microlensing and disk stability, both with and without limitations from wide binary surveys, we estimate the total number and entropy of intermediate mass black holes. Given the visible universe comprises $10^{11}$ halos each of mass $\sim 10^{12} M_{\odot}$, typical core black holes of mean mass $\sim 10^7 M_{\odot}$ set the dimensionless entropy ($S/k$) of the universe at a thousand googols. Identification of all dark matter as black holes sets the dimensionless entropy of the universe at ten million googols, implying that dark matter can contribute over 99% of entropy, which favors all dark matter as black holes in the mass regime of $ \sim 10^{5} M_{\odot}$.

Affiliated with

Also associated with

No associations

Rating

Number and Entropy of Halo Black Holes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Number and Entropy of Halo Black Holes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Number and Entropy of Halo Black Holes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-35610