We give a direct computation of the mass of black holes in Warped Anti-de Sitter space (WAdS) in terms of the Brown-York stress-tensor at the boundary. This permits to explore to what extent the holographic renormalization techniques can be applied to such type of deformation of AdS. We ...
"This regime of dwarf galaxies is largely unexplored when it comes to the properties of their nuclear black holes," said UM astronomer Elena Gallo. "We don't even know if every galaxy has a black hole. This adds a new member to the family of black holes we have information about." Thi...
We report upper limits on the masses of black holes that can be present in the centers of 16 nearby galaxy bulges. These limits Mfor our statistically complete sample were derived from the modeling of the central emission-line widths ([N II] or [S II]), observed over a 0.25"×0.2" ...
We present results from fully nonlinear simulations of inspiralling, unequal mass binary black holes. We show waveforms of the dominant l=2,3 modes. The power spectrum of these modes yields insight on how the mass ratio in a binary impac... F Herrmann,D Shoemaker,P Laguna - 《Bulletin of...
These are exciting times for binary black holes (BBHs). LIGO and Virgo detections are progressively drawing a spectacular fresco of BBH masses, spins, and merger rates. In this review, we discuss the main formation channels of BBHs from stellar evolution
If spacetime torsion couples to the intrinsic spin of matter according to the Einstein-Cartan-Sciama-Kibble theory of gravity, then the resulting gravitational repulsion at supranuclear densities prevents the formation of singularities in black holes. Consequently, the interior of every black hole ...
“Intermediate-Mass Black Holes are difficult to observe,” explains the GSSI researcher, “the current observational limits do not allow us to say anything about the population of IMBHs with masses between 1,000 and 10,000 solar masses, and they also represent a headache for scientists in ter...
Extreme-mass-ratio inspirals (EMRIs) are important gravitational-wave (GW) sources for future space-based detectors. The standard model consists of one stellar-mass black hole spiraling into a supermassive one, and such a process emits low-frequency (~10
Around a million quasars have been catalogued in the Universe by probing deeper and using new methods for discovery. However, the hardest ones to find seem to be the rarest and brightest specimens. Here we study the properties of the most luminous of all
Witek. Extreme black hole simulations: collisions of unequal mass black holes and the point particle limit. Phys. Rev. D, 84:084038, 2011. arXiv:1105.5391 [gr-qc].black hole simulations: collisions of unequal mass black holes and the point particle limit. 2011....