scholarly journals Quasi normal modes and P-V criticallity for scalar perturbations in a class of dRGT massive gravity around black holes

2016 ◽  
Vol 48 (7) ◽  
Author(s):  
P. Prasia ◽  
V. C. Kuriakose
Keyword(s):  
Black Holes ◽  
Normal Modes ◽  
Massive Gravity ◽  
Scalar Perturbations

scholarly journals Dynamical and thermal stabilities of nonlinearly charged AdS black holes

2019 ◽  
Vol 79 (9) ◽  
Author(s):  
S. N. Sajadi ◽  
N. Riazi ◽  
S. H. Hendi
Keyword(s):  
Phase Transition ◽  
Black Holes ◽  
Black Hole ◽  
Normal Modes ◽  
Extended Phase Space ◽  
Extended Phase ◽  
Thermal Stabilities ◽  
Ads Black Holes ◽  
Black Hole Solutions ◽  
Scalar Perturbations

Abstract In this paper, we study an extended phase space thermodynamics of a nonlinearly charged AdS black hole. We examine both the local and global stabilities, and possible phase transition of the black hole solutions. Finally, we compute quasi-normal modes via scalar perturbations and compare the obtained results with those of Reissner-Nordström black hole.

scholarly journals Quasi-normal modes for new type black holes in new massive gravity

2011 ◽  
Vol 28 (14) ◽  
pp. 145006 ◽  
Author(s):  
Yongjoon Kwon ◽  
Soonkeon Nam ◽  
Jong-Dae Park ◽  
Sang-Heon Yi
Keyword(s):  
Black Holes ◽  
Normal Modes ◽  
Massive Gravity ◽  
New Type

scholarly journals Gravitational wave echoes from black holes in massive gravity

2021 ◽  
Vol 103 (2) ◽  
Author(s):  
Ruifeng Dong ◽  
Dejan Stojkovic
Keyword(s):  
Black Holes ◽  
Gravitational Wave ◽  
Massive Gravity

scholarly journals Quasi-normal modes of electromagnetic perturbations of four-dimensional topological black holes with scalar hair

2006 ◽  
Vol 2006 (10) ◽  
pp. 006-006 ◽  
Author(s):  
George Koutsoumbas ◽  
Suphot Musiri ◽  
Eleftherios Papantonopoulos ◽  
George Siopsis
Keyword(s):  
Black Holes ◽  
Normal Modes ◽  
Scalar Hair ◽  
Electromagnetic Perturbations

scholarly journals Rotating black holes in massive gravity

2014 ◽  
Vol 90 (8) ◽  
Author(s):  
Eugeny Babichev ◽  
Alessandro Fabbri
Keyword(s):  
Black Holes ◽  
Massive Gravity ◽  
Rotating Black Holes

On Primordial Black Holes and secondary gravitational waves generated from inflation with solo/multi-bumpy potential

2021 ◽  
Author(s):  
Rui feng Zheng ◽  
Jia ming Shi ◽  
Taotao Qiu
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Gravitational Waves ◽  
Power Spectra ◽  
Small Scale ◽  
Primordial Black Hole ◽  
Primordial Black Holes ◽  
Slow Roll ◽  
Spherical Collapse ◽  
Scalar Perturbations

Abstract It is well known that primordial black hole (PBH) can be generated in inflation process of the early universe, especially when the inflaton field has some non-trivial features that could break the slow-roll condition. In this paper, we investigate a toy model of inflation with bumpy potential, which has one or several bumps. We found that potential with multi-bump can give rise to power spectra with multi peaks in small-scale region, which can in turn predict the generation of primordial black holes in various mass ranges. We also consider the two possibilities of PBH formation by spherical collapse and elliptical collapse. And discusses the scalar-induced gravitational waves (SIGWs) generated by the second-order scalar perturbations.

scholarly journals Perturbations and quasi-normal modes of black holes in Einstein–Aether theory

2007 ◽  
Vol 644 (2-3) ◽  
pp. 186-191 ◽  
Author(s):  
R.A. Konoplya ◽  
A. Zhidenko
Keyword(s):  
Black Holes ◽  
Normal Modes
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