Results 91 to 100 of about 140,146 (178)
Nuclear Physics BBlack holes in (2+1) dimensions serve as valuable toy models for understanding key aspects of real astrophysical black holes, providing insights into quantum gravity and thermodynamic properties.
Erdem Sucu, İzzet Sakallı
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Super-Eddington Accretion onto Black Holes and Its Application to Fallback Accretion
The Astrophysical JournalWe study the problem of steady-state spherical accretion onto a black hole, in which the internal energy of the flow is governed by radiation and photon diffusion dominates the energy flux at large radii.
Tamar Faran, Eliot Quataert
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Novel Polarimetric Analysis of Near-horizon Flaring Episodes in M87* in Millimeter Wavelength
The Astrophysical JournalRecent multiwavelength observations of M87* revealed a high-energy γ -ray flare without a millimeter counterpart. We present a theoretical study of potential millimeter flares in M87*, using general relativistic magnetohydrodynamical simulations with ...
Razieh Emami +17 more
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Scalar-Tensor Black Holes Embedded in an Expanding Universe
Universe, 2018 In this review, we focus our attention on scalar-tensor gravity models and their empirical verification in terms of black hole and wormhole physics.
Daria Tretyakova, Boris Latosh
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GW231123: Likely a Product of Successive Mergers from ∼10 Stellar-mass Black Holes
The Astrophysical JournalGW231123 is an exceptionally massive binary black hole (BBH) merger with unusually high component spins. Such extreme properties challenge conventional stellar evolution models, predicting a black hole (BH) mass gap due to pair-instability supernovae. We
Yin-Jie Li +3 more
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The Scientific World Journal, 2013 Black holes have the peculiar and intriguing property of having an event horizon, a one-way membrane causally separating their internal region from the rest of the Universe.
Cosimo Bambi
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The Astrophysical JournalIGR J17091–3624 is a black hole X-ray binary (BHXB), often referred to as the “twin” of GRS 1915+105 because it is the only other known BHXB that can show exotic “heartbeat”-like variability that is highly structured and repeated.
Jingyi Wang +15 more
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The weak cosmic censorship conjecture in hairy Kerr black holes
European Physical Journal C: Particles and FieldsThe weak cosmic censorship conjecture, since its proposal, has always been a controversial hypothesis, but its significance in astrophysics is undeniable.
Lai Zhao, Meirong Tang, Zhaoyi Xu
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Covariance Spectrum of MAXI J1820+070: On the Nature of the Comptonizing Flow
The Astrophysical JournalWe present an analysis of the covariance spectrum of the black hole X-ray binary MAXI J1820+070 during its hard state. For the first time, we extend coherence and covariance studies into the hard X-ray band up to ∼150 keV.
Shuai-Kang Yang +10 more
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Tidal Forces in Majumdar-Papapetrou Spacetimes
UniverseTidal disruption events occur when astrophysical objects are destroyed by black holes due to strong tidal force effects. Tidal forces have been studied in a variety of black hole spacetimes, including Reissner-Nordström and Kerr spacetimes.
Eduardo Albacete, Maurício Richartz
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