Results 41 to 50 of about 56,013 (217)

Menus for Feeding Black Holes

, 2013
Black holes are the ultimate prisons of the Universe, regions of spacetime where the enormous gravity prohibits matter or even light to escape to infinity.
A. Burrows, A. Escala, A. Heger, A. Loeb, A.I. MacFadyen, A.P. Schoenmakers, B. Carter, B. Kocsis, B. Kocsis, B. Kocsis, B. Kocsis, B. Kocsis, B. McKernan, B.A. Fryxell, C. Rodriguez, C. Roedig, C.D. Dermer, C.L. Fryer, D. Merritt, D.N. Burrows, E.C. Ostriker, F. Civano, F. De Colle, F. Hoyle, F. Pretorius, F.D. Lora-Clavijo, F.K. Liu, F.K. Liu, G. Bertone, G. Bertone, G. Fabbiano, G. Lodato, G. Lodato, H. Baumgardt, H. Bondi, H. Bondi, H. Sudou, H.-J. Grimm, I. Mandel, I.D. Novikov, J. Binney, J. Cuadra, J. Frank, J. Goodman, J. Goodman, J. Guilet, J. Guillochon, J. Miralda-Escudé, J. Wang, J.-M. Shi, J.A. Regan, J.G. Baker, J.M. Blondin, J.M. Blondin, J.S.B. Wyithe, J.S.B. Wyithe, J.S.B. Wyithe, K. Belczynski, K. Hayasaki, K. Kotake, K. Nakayama, K.A. Postnov, K.S. Thorne, L. Ballo, L. Blecha, L.E. Strubbe, L.L. Cowie, M. Campanelli, M. Dijkstra, M. Eracleous, M. Freitag, M. Kesden, M. Kesden, M. MacLeod, M. Milosavljević, M. Ruffert, M. Ruffert, M. Saijo, M. Ugliano, M.C. Begelman, M.C. Begelman, M.C. Miller, M.J. Rees, M.J. Rees, M.P. Muno, M.R. Krumholz, M.R. Krumholz, N. Roos, N. Soker, N. Soker, N. Stone, N. Stone, N. Webb, N.I. Shakura, O. Zanotti, P. Goldreich, P. Madau, P. Madau, P. Ranalli, P.B. Ivanov, P.C. Fragile, R. Fernández, R. Haas, R. Narayan, R. Narayan, R. Narayan, R.M. O’Leary, R.M. O’Leary, R.M. O’Leary, R.N. Lang, S. Bianchi, S. Chandrasekhar, S. Gezari, S. Komossa, S. Komossa, S. Mineo, S. Rosswog, S. van Velzen, S.B. Cenko, S.C. Noble, S.F. Portegies Zwart, S.F. Portegies Zwart, S.L. Shapiro, S.L. Shapiro, S.W. Davis, T. Foglizzo, T. Foglizzo, T. Tanaka, U. Anzer, V. Bromm, V. Bromm, V. Paschalidis, X. Chen, Y. Levin, Y. Rephaeli, Y. Shen, Z. Haiman   +136 more
core   +1 more source

Quantifying the Impact of Relativistic Precession on Tidal Disruption Event Light Curves

Astronomische Nachrichten, EarlyView.
ABSTRACT The tidal field of a black hole can turn a star into a gas stream whose orbit can precess, especially if the a black hole is rapidly spinning. In this work, we investigate the impact of precession on the light curves of tidal disruption events (TDE).
Diego Calderón, Ondřej Pejcha, Brian D. Metzger, Paul C. Duffell, Stephan Rosswog   +4 more
wiley   +1 more source

Black holes with surrounding matter in scalar-tensor theories

, 2013
We uncover two mechanisms that can render Kerr black holes unstable in scalar-tensor gravity, both associated to the presence of matter in the vicinity of the black hole and the fact that this introduces an effective mass for the scalar.
Cardoso, Vitor, Carucci, Isabella P., Pani, Paolo, Sotiriou, Thomas P.   +3 more
core   +1 more source

Hidden No More: Spotlight on Tidal Disruption Events in Active Galactic Nuclei

Astronomische Nachrichten, EarlyView.
ABSTRACT Tidal disruption events (TDEs) are typically discovered in previously quiescent galaxies. However, earlier studies have revealed a handful of TDEs occurring in pre‐existing active galactic nuclei (AGN). We discuss AT2019aalc, a promising TDE candidate in an AGN, and compare it to similar sources.
Patrik Milán Veres
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

Further Evidence for a Direct-collapse Origin of the Supermassive Black Hole at the Center of the ∞ Galaxy

The Astrophysical Journal Letters
The z = 1.14 ∞ galaxy consists of two ringed nuclei with an active supermassive black hole (SMBH) in between them. The system is likely the result of a nearly face-on collision between two disk galaxies with massive bulges. In P. van Dokkum et al.
Pieter van Dokkum, Gabriel Brammer, Connor Jennings, Imad Pasha, Josephine F. W. Baggen   +4 more
doaj   +1 more source

Approaching the Black Hole by Numerical Simulations

Universe, 2019
Black holes represent extreme conditions of physical laws. Predicted about a century ago, they are now accepted as astrophysical reality by most of the scientific community.
Christian Fendt
doaj   +1 more source

The astrophysical science case for a decihertz gravitational-wave detector

, 2017
We discuss the astrophysical science case for a decihertz gravitational-wave mission. We focus on unique opportunities for scientific discovery in this frequency range, including probes of type IA supernova progenitors, mergers in the presence of third ...
Mandel, Ilya, Sesana, Alberto, Vecchio, Alberto   +2 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

Nonthermal Synchrotron Emission and Polarization Signatures during Black Hole Flux Eruptions

The Astrophysical Journal
In this work, we investigate synchrotron emission and the observational signatures of anisotropic nonthermal electrons during magnetic flux eruptions in a magnetically arrested disk, using 3D GRMHD simulations.
Fan Zhou, Jiewei Huang, Yuehang Li, Zhenyu Zhang, Yehui Hou, Minyong Guo, Bin Chen   +6 more
doaj   +1 more source