Results 11 to 20 of about 2,711,397 (376)
European Physical Journal C: Particles and Fields, 2019 We study some physical properties of black holes in Null Aether Theory (NAT) – a vector-tensor theory of gravity. We first review the black hole solutions in NAT and then derive the first law of black hole thermodynamics.
Metin Gürses +2 more
doaj +6 more sources
Nuclear Physics B, 1993 The dynamics of Liouville fields coupled to gravity are investigated by applying the principle of general covariance to the Liouville action in the context of a particular form of two-dimensional dilaton gravity.
Brown +28 more
core +5 more sources
Multioscillating black holes [PDF]
Journal of High Energy Physics, 2021 Abstract We study rotating global AdS solutions in five-dimensional Einstein gravity coupled to a multiplet complex scalar within a cohomogeneity-1 ansatz. The onset of the gravitational and scalar field superradiant instabilities of the Myers-Perry-AdS black hole mark bifurcation points to black resonators and hairy Myers-Perry ...
Ishii, Takaaki +3 more
openaire +5 more sources
Primordial black holes as a dark matter candidate [PDF]
Journal of Physics G: Nuclear and Particle Physics, 2020 The detection of gravitational waves from mergers of tens of Solar mass black hole binaries has led to a surge in interest in Primordial Black Holes (PBHs) as a dark matter candidate.
A. Green, B. Kavanagh
semanticscholar +1 more source
Reviews of Modern Physics, 1999 13 pages, To appear in the American Physical Society Centenary issue of Reviews of Modern Physics, March ...
Horowitz, Gary T., Teukolsky, Saul A.
openaire +5 more sources
Gravitational waves from a universe filled with primordial black holes [PDF]
Journal of Cosmology and Astroparticle Physics, 2020 Ultra-light primordial black holes, with masses m PBH < 109g, evaporate before big-bang nucleosynthesis and can therefore not be directly constrained. They can however be so abundant that they dominate the universe content for a transient period (before ...
T. Papanikolaou, V. Vennin, D. Langlois
semanticscholar +1 more source
Proceedings of the National Academy of Sciences, 2001 Recent progress in black hole research is illustrated by three examples. We discuss the observational challenges that were met to show that a supermassive black hole exists at the center of our galaxy. Stellar-size black holes have been studied in x-ray binaries and microquasars.
Brügmann, B., Ghez, A., Greiner, J.
openaire +3 more sources
Two populations of LIGO-Virgo black holes [PDF]
Journal of Cosmology and Astroparticle Physics, 2020 We analyse the LIGO-Virgo data, including the recently released GWTC-2dataset, to test a hypothesis that the data contains more than one population of black holes.
G. Hütsi +3 more
semanticscholar +1 more source
The statistical mechanics of near-BPS black holes [PDF]
Journal of Physics A: Mathematical and Theoretical, 2020 Due to the failure of thermodynamics for low temperature near-extremal black holes, it has long been conjectured that a ‘thermodynamic mass gap’ exists between an extremal black hole and the lightest near-extremal state.
M. Heydeman +3 more
semanticscholar +1 more source