Results 61 to 70 of about 1,346 (168)

Highly Coherent Quasiperiodic Oscillations in the “Heartbeat” Black Hole X-Ray Binary IGR J17091–3624

The Astrophysical Journal
IGR 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, Erin Kara, Jeroen Homan, James F. Steiner, Diego Altamirano, Tomaso Belloni, Michiel van der Klis, Adam Ingram, Javier A. García, Guglielmo Mastroserio, Riley Connors, Matteo Lucchini, Thomas Dauser, Joseph Neilsen, Collin Lewin, Ron A. Remillard   +15 more
doaj   +1 more source

Surrounded Vaidya solution by cosmological fields

European Physical Journal C: Particles and Fields, 2018
In the present work, we study the general surrounded Vaidya solution by the various cosmological fields and its nature describing the possibility of the formation of naked singularities or black holes.
Y. Heydarzade, F. Darabi
doaj   +1 more source

Tidal Forces in Majumdar-Papapetrou Spacetimes

Universe
Tidal 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
doaj   +1 more source

The weak cosmic censorship conjecture in hairy Kerr black holes

European Physical Journal C: Particles and Fields
The 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
doaj   +1 more source

Astrophysical black holes [PDF]

, 2019
Pedro R. Capelo
openalex   +1 more source

Astrophysical flows near $$f\,\,(T)$$ f ( T ) gravity black holes [PDF]

, 2016
Ayyesha K. Ahmed, Mustapha Azreg‐Aïnou, Sebastian Bahamonde, Salvatore Capozziello, Mubasher Jamil, Ayyesha K. Ahmed, Mustapha Azreg‐Aïnou, Sebastian Bahamonde, Salvatore Capozziello, Mubasher Jamil   +9 more
openalex   +1 more source

Black Hole 2000: The Astrophysical Era1 [PDF]

, 2000
W. Israel
openalex   +1 more source

QPOs analyses and circular orbits of charged particles around magnetized black holes in Bertotti–Robinson geometry

European Physical Journal C: Particles and Fields
Analyses of astrophysical observations, such as quasiperiodic oscillations (QPOs), combined with theoretical studies, help to understand the deeper properties of black hole spacetime and obtain parameters of black holes and alternative gravity theories ...
Abubakir Shermatov, Javlon Rayimbaev, Bekir Can Lütfüolu, Ahmadjon Abdujabbarov, Sabirov Sardor, Inomjon Ibragimov, Murodbek Vapayev, Bahrom Kuyliev   +7 more
doaj   +1 more source

A comparative artificial neural networks for Schwarzschild black hole (SBH) radius

Physics Open
It is consensus among researchers that the data for the black holes is complicated and extremely non-linear in nature. Therefore, it remains a challenging task for them to predict the key characteristics of concerned black holes accurately.
Khalil Ur Rehman, Wasfi Shatanawi, Weam G. Alharbi   +2 more
doaj   +1 more source

Analogous Hawking Radiation from Astrophysical Black Hole Accretion [PDF]

, 2004
Tapas K. Das
openalex   +1 more source