Results 51 to 60 of about 55,540 (200)

Embedding Black Holes and Other Inhomogeneities in the Universe in Various Theories of Gravity: A Short Review

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
doaj   +1 more source

Testing the No-Hair Theorem with Observations in the Electromagnetic Spectrum: II. Black-Hole Images

, 2010
According to the no-hair theorem, all astrophysical black holes are fully described by their masses and spins. This theorem can be tested observationally by measuring (at least) three different multipole moments of the spacetimes of black holes.
Agol, Bardeen, Bozza, Broderick, Broderick, Broderick, Carter, Dexter, Dexter, Dimitrios Psaltis, Doeleman, Falcke, Fanton, Fish, Ghez, Gillessen, Glampedakis, Johannsen, Laor, Manko, Mazur, McClintock, McClintock, Mościbrodzka, Narayan, Narayan, Narayan, Penrose, Psaltis, Psaltis, Schnittman, Schnittman, Shcherbakov, Takahashi, Tim Johannsen, Tremaine, Viergutz, Will, Yuan   +38 more
core   +1 more source

Black Hole Spectroscopy: Testing General Relativity through Gravitational Wave Observations [PDF]

, 2003
Assuming that general relativity is the correct theory of gravity in the strong field limit, can gravitational wave observations distinguish between black hole and other compact object sources? Alternatively, can gravitational wave observations provide a
Andersson N, Anninos P, Badri Krishnan, Bernard Kelly, Berti E, Berti E, Brandt S, Cutler C Thorne K S, Danzmann K, David Garrison, Eardley D M, Echeverria E, Fairhurst S, Feldman G J, Finn L S, Finn L S, Finn L S, Flanagan É É, Haehnelt M G, Haehnelt M G, Hamming Richard, Khanna G, Kokkotas K D, Leaver E W, Lee Samuel Finn, Neyman J, Nollert H P, Olaf Dreyer, Onozowa H, Ramon Lopez-Aleman, Ryan F D, Seidel E, Shahram M Milanfar P, Stuart A, Sutton P J, Teukolsky S A, Vishveshwara C V, Will C M, Zerilli F, Zerilli F J   +39 more
core   +1 more source

Generalized Chemical Model for Warm Dense Hydrogen: Ionization Potential Depression and Molecular Dissociation Shifts

Contributions to Plasma Physics, EarlyView.
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, Yu. V. Arkhipov, Ye. S. Mukhametkarimov, A. E. Davletov, I. M. Tkachenko   +4 more
wiley   +1 more source

Vertical profiling of shock attenuation at the Rochechouart impact structure, France

Meteoritics &Planetary Science, EarlyView.
Abstract Rochechouart, south‐west France, is a complex impact structure. Here, we present the first report of shock barometry of quartz from what are likely parautochthonous basement units at depth, based on samples from the 2017 C.I.R.I.R drilling campaign. The crystallographic orientations of 725 sets of PDFs in 512 quartz grains in samples from four
P. Struzynska, S. Alwmark, C. Alwmark, M. H. Poelchau, P. Lambert   +4 more
wiley   +1 more source

Introduction to Black Hole Astrophysics [PDF]

, 2014
This book is based on the lecture notes of the course on black hole astrophysicsgiven at the University of La Plata, Argentina, by one of us (GER). The materialaims at advanced undergraduate and graduate students with interest in astrophysics.The course takes one semester and is usually complemented by a course on high-energyastrophysics.
Romero, Gustavo Esteban, Vila, Gabriela Soledad   +1 more
openaire   +2 more sources

The High Energy X-ray Probe (HEX-P): probing accretion onto stellar mass black holes

Frontiers in Astronomy and Space Sciences
Accretion is a universal astrophysical process that plays a key role in cosmic history, from the epoch of reionization to galaxy and stellar formation and evolution. Accreting stellar-mass black holes in X-ray binaries are one of the best laboratories to
Riley M. T. Connors, John A. Tomsick, Paul Draghis, Benjamin Coughenour, Aarran W. Shaw, Javier A. García, Javier A. García, Dominic Walton, Kristin Madsen, Daniel Stern, Nicole Cavero Rodriguez, Thomas Dauser, Melania Del Santo, Jiachen Jiang, Henric Krawczynski, Honghui Liu, Joseph Neilsen, Michael Nowak, Sean Pike, Andrea Santangelo, Navin Sridhar, Navin Sridhar, Navin Sridhar, Andrew West, Jörn Wilms   +24 more
doaj   +1 more source

Effects of the May 2024 Solar Storm on the Earth's Radiation Belts Observed by CALET on the International Space Station

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract In May 2024, extraordinary solar activity triggered a powerful solar storm, impacting Earth and producing the extreme geomagnetic storm of 10‐11 May, the most intense since 2003. This had significant effects on the magnetosphere, leading to the creation of a new long‐lasting component of relativistic electrons and to flux changes in the South ...
A. Ficklin, A. Bruno, L. Blum, N. Cannady, T. G. Guzik, R. Kataoka, K. Munakata, Y. Akaike, S. Torii   +8 more
wiley   +1 more source

Astrophysical black holes [PDF]

, 2019
In this chapter, we introduce the concept of a black hole (BH) and recount the initial theoretical predictions. We then review the possible types of BHs in nature, from primordial, to stellar-mass, to supermassive BHs. Finally, we focus on the latter category and on their intricate relation with their host galaxies.
openaire   +2 more sources

Astrophysical structures from primordial quantum black holes [PDF]

The European Physical Journal C, 2010
11 ...
CAPOZZIELLO, SALVATORE, CRISTOFANO, GERARDO ANTONIO, DE LAURENTIS, MARIAFELICIA   +2 more
openaire   +3 more sources