Supermassive Black Holes from Ultra-strongly Self-interacting Dark Matter
نویسندگان
چکیده
Jason Pollack, ∗ David N. Spergel, and Paul J. Steinhardt 1Walter Burke Institute for Theoretical Physics, Division of Physics, Mathematics & Astronomy, California Institute of Technology, Pasadena, CA 91125 2Department of Astrophysical Sciences, Peyton Hall, Princeton University, Princeton, NJ 08544 3Department of Physics and Princeton Center for Theoretical Science, Princeton University, Princeton, NJ 08544 (Dated: January 5, 2015)
منابع مشابه
Formation of Supermassive Black Holes: Simulations in General Relativity
There is compelling evidence that supermassive black holes exist. Yet the origin of these objects, or their seeds, is still unknown. We discuss several plausible scenarios for forming the seeds of supermassive black holes. These include the catastrophic collapse of supermassive stars, the collapse of relativistic clusters of collisionless particles or stars, the gravothermal evolution of dense ...
متن کاملObservational Constraints on the Self Interacting Dark Matter Scenario and the Growth of Supermassive Black Holes
We consider the astrophysical consequences of the self interacting dark matter (SIDM) scenario for a general velocity dependent cross section per unit mass which varies as some power of velocity: σDM = σ0 (v/v0) . Accretion of SIDM onto seed black holes can produce supermassive black holes that are too large for certain combinations of σ0v a 0 and a, a fact which is used to obtain a new constra...
متن کاملGravothermal collapse of self-interacting dark matter halos and the origin of massive black holes.
Black hole formation is an inevitable consequence of relativistic core collapse following the gravothermal catastrophe in self-interacting dark matter (SIDM) halos. Very massive SIDM halos form supermassive black holes (SMBHs) > or about 10(6)M(middle dot in circle) directly. Smaller halos believed to form by redshift z = 5 produce seed black holes of (10(2)-10(3))M(middle dot in circle) which ...
متن کاملCan Supermassive Black Holes alter Cold Dark Matter cusps through accretion?
We present some simple models to determine whether or not the accretion of cold dark matter by supermassive black holes is astrophysically important. Contrary to some claims in the literature, we show that supermassive black holes cannot significantly alter a power law density cusp via accretion, whether during mergers or in the steady state.
متن کاملSupermassive black holes in scalar field galaxy halos
Ultralight scalar fields provide an interesting alternative to WIMPS as halo dark matter. In this paper we consider the effect of embedding a supermassive black hole within such a halo, and estimate the absorption probability and the accretion rate of dark matter onto the black hole. We show that the accretion rate would be small over the lifetime of a typical halo, and hence that supermassive ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2015