Results 1 to 10 of about 133,563 (168)
Supermassive black hole ancestors [PDF]
Monthly Notices of the Royal Astronomical Society, 2012 We study a model in which supermassive black holes (SMBHs) can grow by the combined action of gas accretion on heavy seeds and mergers of both heavy (m_s^h=10^5 Msol) and light (m_s^l = 10^2 Msol) seeds.
A. Ferrara +56 more
core +4 more sources
Black Holes, Mergers, and the Entropy Budget of the Universe [PDF]
JCAP 0311 (2003) 011, 2002 Vast amounts of entropy are produced in black hole formation, and the amount of entropy stored in supermassive black holes at the centers of galaxies is now much greater than the entropy free in the rest of the universe. Either mergers involved in forming supermassive black holes are rare,or the holes must be very efficient at capturing nearly all the ...
Abrahams A M (Binary Black Hole Grand Challenge Alliance Collaboration) +22 more
arxiv +4 more sources
Mass Functions of Supermassive Black Holes Across Cosmic Time [PDF]
, 2011 The black hole mass function of supermassive black holes describes the evolution of the distribution of black hole mass. It is one of the primary empirical tools available for mapping the growth of supermassive black holes and for constraining theoretical models of their evolution.
Kelly, Brandon C., Merloni, Andrea
arxiv +6 more sources
Supermassive Black Holes [PDF]
Phys.World 15N6 (2002) 41-46, 2002 After a brief historical introduction, we summarize current efforts and accomplishments in the study of supermassive black holes.
Laura Ferrarese, David Merritt
arxiv +4 more sources
No Supermassive Black Hole in M33? [PDF]
Science, 2001 We analyze optical long-slit spectroscopy of the nucleus of M33 obtained from the Space Telescope Imaging Spectrograph aboard the Hubble Space Telescope. Rather than the steep rise expected within the radius of influence of a supermassive black hole, the
Ferrarese, Laura +2 more
core +5 more sources
Formation of supermassive black hole seeds [PDF]
Publications of the Astronomical Society of Australia, 2016 The detection of quasars at $z>6$ unveils the presence of supermassive black holes (BHs) of a few billion solar masses. The rapid formation process of these extreme objects remains a fascinating and open issue.
Ferrara, Andrea, Latif, Muhammad A.
core +7 more sources
Kretschmann Scalar for a Kerr-Newman Black Hole [PDF]
, 1999 I have derived the Kretschmann scalar for a general black hole of mass m, angular momentum per unit mass a, and electric charge Q. The Kretschmann scalar gives the amount of curvature of spacetime, as a function of position near (and within) a black hole.
Henry, Richard C.
arxiv +5 more sources
Supermassive Black Hole Feedback
, 2019 Understanding the processes that drive galaxy formation and shape the observed properties of galaxies is one of the most interesting and challenging frontier problems of modern astrophysics. We now know that the evolution of galaxies is critically shaped
Basu, Kaustuv +25 more
core +3 more sources
The Formation of Supermassive Black Holes and the Evolution of Supermassive Stars [PDF]
Class.Quant.Grav. 18 (2001) 3965-3976, 2000 The existence of supermassive black holes is supported by a growing body of observations. Supermassive black holes and their formation events are likely candidates for detection by proposed long-wavelength, space-based gravitational wave interferometers like LISA.
Stuart L. Shapiro, Kimberly C. B. New
arxiv +5 more sources
SUPERMASSIVE SEEDS FOR SUPERMASSIVE BLACK HOLES [PDF]
The Astrophysical Journal, 2013 9 pages, 2 figures; accepted for publication in ...
Hui Li +4 more
openaire +3 more sources