scholarly journals Black hole perturbations in modified gravity

2021 ◽  
Vol 104 (12) ◽  
Author(s):  
David Langlois ◽  
Karim Noui ◽  
Hugo Roussille
Keyword(s):  
Black Hole ◽  
Modified Gravity

scholarly journals Black hole solutions in modified gravity induced by quantum metric fluctuations

2021 ◽  
Vol 31 ◽  
pp. 100756
Author(s):  
Jin-Zhao Yang ◽  
Shahab Shahidi ◽  
Tiberiu Harko ◽  
Shi-Dong Liang
Keyword(s):  
Black Hole ◽  
Modified Gravity ◽  
Black Hole Solutions ◽  
Metric Fluctuations

scholarly journals Mass and spin of a Kerr black hole in modified gravity and a test of the Kerr black hole hypothesis

2018 ◽  
Vol 97 (12) ◽  
Author(s):  
Pankaj Sheoran ◽  
Alfredo Herrera-Aguilar ◽  
Ulises Nucamendi
Keyword(s):  
Black Hole ◽  
Modified Gravity ◽  
Kerr Black Hole

scholarly journals Constrains on the electric charges of the binary black holes with GWTC-1 events

2021 ◽  
Vol 81 (8) ◽  
Author(s):  
Hai-Tang Wang ◽  
Peng-Cheng Li ◽  
Jin-Liang Jiang ◽  
Guan-Wen Yuan ◽  
Yi-Ming Hu ◽  
...  
Keyword(s):  
Black Hole ◽  
Gravitational Wave ◽  
Electric Charge ◽  
Modified Gravity ◽  
Fisher Information Matrix ◽  
Information Matrix ◽  
Charge Effect ◽  
Leading Order ◽  
Binary Black Holes ◽  
Binary Black Hole

AbstractTesting black hole’s charged property is a fascinating topic in modified gravity and black hole astrophysics. In the first Gravitational-Wave Transient Catalog (GWTC-1), ten binary black hole merger events have been formally reported, and these gravitational wave signals have significantly enhanced our understanding of the black hole. In this paper, we try to constrain the amount of electric charge with the parameterized post-Einsteinian framework by treating the electric charge as a small perturbation in a Bayesian way. We find that the current limits in our work are consistent with the result of Fisher information matrix method in previous works. We also develop a waveform model considering a leading order charge effect for binary black hole inspiral.

scholarly journals Thermodynamics of non-commutative scalar-tensor-vector gravity black holes

2020 ◽  
pp. 2150024
Author(s):  
Sara Saghafi ◽  
Kourosh Nozari ◽  
Milad Hajebrahimi
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Coherent State ◽  
Thermodynamic Stability ◽  
Modified Gravity ◽  
Final Stage ◽  
Tunneling Mechanism ◽  
Massive Particles

In this paper, we analyze the thermodynamic stability of Schwarzschild Modified Gravity (MOG) black holes in a non-commutative framework. We show that, unlike a commutative MOG black hole, in the coherent state picture of non-commutativity MOG black holes are thermodynamically stable. At the final stage of evaporation a stable remnant with zero temperatures and finite entropy is left in this non-commutative framework. Also, we consider the Parikh–Wilczek tunneling mechanism of massive particles from non-commutative MOG black holes and demonstrate that information leaks out of non-commutative MOG black holes in the form of some non-thermal correlations.

scholarly journals Modified gravity black hole lensing observables in weak and strong field of gravity

2018 ◽  
Vol 483 (3) ◽  
pp. 3754-3761 ◽  
Author(s):  
R N Izmailov ◽  
R Kh Karimov ◽  
E R Zhdanov ◽  
K K Nandi
Keyword(s):  
Black Hole ◽  
Modified Gravity ◽  
Strong Field
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