Results 51 to 60 of about 2,137,135 (205)
Simulation-based Prediction of Black Hole Fe Kα Line Profiles
The Astrophysical JournalOne of the most useful spectral diagnostics of accreting black hole systems is the Fe K α fluorescence line. Detected in many systems, it is often used to estimate the black hole spin, as its breadth is attributed to relativistic kinematics near the spin-
Chris Nagele +3 more
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Universe, 2018 Classic black hole mechanics and thermodynamics are formulated for stationary black holes with event horizons. Alternative theories of gravity of interest for cosmology contain a built-in time-dependent cosmological “constant” and black holes
Valerio Faraoni
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Testing Ghasemi-Nodehi–Bambi spacetime with continuum-fitting method
European Physical Journal C: Particles and Fields, 2020 The continuum-fitting method is the analysis of the thermal spectrum of the geometrically thin and optically thick accretion disk around stellar-mass black holes.
M. Ghasemi-Nodehi
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European Physical Journal C: Particles and Fields, 2021 We consider the equation of motion of a charged particle or a charged compact object in curved space-time, under the reaction of electromagnetic radiation and also consider a physical situation such that the charged particle or compact object emits ...
Arnab Sarkar, Amna Ali, Salah Nasri
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Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.Abstract Magnetic holes (MHs) are magnetic structures characterized by a depression of magnetic field strength and have been frequently observed around dipolarization fronts (DFs), which are characterized by the increase in the magnetic field Bz. Both MHs and DFs are potential contributors to the formation of electron anisotropy.
Y. Y. Wei +5 more
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The Astrophysical Journal LettersPrecessing binary black holes generically produce an imbalance of right- and left-handed gravitational waves (GWs), reflecting the breaking of mirror symmetry by the merger dynamics. We study this phenomenon using the observer-independent quantity V _GW ,
Juan Calderón Bustillo +3 more
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Contributions to Plasma Physics, Volume 66, Issue 7-8, September 2026.ABSTRACT Warm dense matter (WDM) is a complex state, where quantum effects, thermal excitations, and strong interparticle correlations coexist. Understanding its microscopic composition and medium‐induced modifications of atomic and molecular properties is essential for planetary modeling, fusion research, and high‐energy‐density experiments.
L. T. Yerimbetova +4 more
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Uniqueness of near-horizon geometries of rotating extremal AdS(4) black holes [PDF]
, 2009 We consider stationary extremal black hole solutions of the Einstein-Maxwell equations with a negative cosmological constant in four dimensions. We determine all non-static axisymmetric near-horizon geometries and all static near-horizon geometries for ...
Lucietti, James, Kunduri, Hari K.
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The Astrophysical JournalWe numerically investigate the effects of black hole spin and local dissipation profiles on high-frequency quasiperiodic oscillation (HFQPO) observed in black hole X-ray binaries (BHXBs).
Theodore Dezen +2 more
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AGU Advances, Volume 7, Issue 6, September 2026.Abstract While climate‐driven increases in wildfires are altering the composition and function of Arctic ecosystems, the impact of burn severity on longer‐term changes in community composition and ecosystem fluxes remains less understood, creating uncertainty in estimates of the biome's carbon storage capacity.
Jinhyuk E. Kim +9 more
wiley +1 more source