Results 121 to 130 of about 37,815 (249)

Testing the Kerr nature of intermediate-mass and supermassive black hole binaries using spin-induced multipole moment measurements

, 2020
The gravitational wave measurements of spin-induced multipole moment coefficients of a binary black hole system can be used to distinguish black holes from other compact objects [N. V. Krishnendu et al., PRL 119, 091101 (2017)].
Krishnendu, N. V., Yelikar, Anjali B.
core   +1 more source

Supermassive Black Holes

, 2007
26 pages, 15 figures, to appear in "Kerr Spacetime: Rotating Black Holes in General Relativity" eds. D.L. Wiltshire, M. Visser and S.M. Scott, (Cambridge Univ. Press)
openaire   +2 more sources

Black-Hole Bombs and Photon-Mass Bounds

, 2012
Generic extensions of the standard model predict the existence of ultralight bosonic degrees of freedom. Several ongoing experiments are aimed at detecting these particles or constraining their mass range.
A. A. Starobinsky, Akihiro Ishibashi, B. J. Carr, Emanuele Berti, Leonardo Gualtieri, Paolo Pani, S. Hawking, Vitor Cardoso, Y. B. Zel’Dovich   +8 more
core   +1 more source

Observational Evidence for a Correlation between the Magnetic Field of Jets and Star Formation Rate in Host Galaxies

The Astrophysical Journal
Accretion supermassive black holes in the center of active galaxies usually produce “jet”-collimated bipolar outflows of relativistic particles. Magnetic fields near the black hole event horizon may play a crucial role in the formation of jets/outflows ...
Yongyun Chen, Qiusheng Gu, Junhui Fan, Xiaotong Guo, Xiaoling Yu, Nan Ding, Dingrong Xiong   +6 more
doaj   +1 more source

Detection of Periodic Radio Signal from the Blazar J1043+2408

Galaxies, 2018
The search for periodic signals from blazars has become a widely discussed topic in recent years. In the scenario that such periodic changes originate from the innermost regions of blazars, the signals bear imprints of the processes occurring near the ...
Gopal Bhatta
doaj   +1 more source

Investigating the nature of mass distribution surrounding the Galactic supermassive black hole. [PDF]

Sci Rep, 2022
Chan MH, Lee CM, Yu CW.
europepmc   +1 more source

Exploring the effects of pressure on the radial accretion of dark matter by a Schwarzschild supermassive black hole

, 2011
Based on the numerical solution of the time-dependent relativistic Euler equations onto a fixed Schwarzschild background space-time, we estimate the accretion rate of radial flow toward the horizon of a test perfect fluid obeying an ideal gas equation of
Banyouls, Begelman, Ebisuzaki, Eisenstein, F. D. Lora-Clavijo, F. S. Guzmán, Font, Font, Heger, Holz, Hopkins, Hu, King, Koushiappas, LeVeque, Lightman, Loeb, Martí, Misner, Moore, Ostriker, Peirani, Portegies Zwart, Read, Seidel, Shlosman, Small, Spergel, Toro, Umeda, Volonteri, Zhao   +31 more
core   +1 more source

Cosmology, primordial black holes, and supermassive particles [PDF]

, 1985
A. G. Polnarev, Maxim Yu. Khlopov
openalex   +1 more source

Conceptual Analogies Between Multi-Scale Feeding and Feedback Cycles in Supermassive Black Hole and Cancer Environments. [PDF]

Front Oncol, 2021
Santoni M, Tombesi F, Cimadamore A, Montironi R, Piva F.   +4 more
europepmc   +1 more source

Supermassive black holes in spiral galaxies [PDF]

Proceedings of the International Astronomical Union, 2004
6 pages, 5 figures, to be published in "The Interplay among Black Holes, Stars and ISM in Galactic Nuclei," Th. Storchi Bergmann, L.C. Ho & H.R.
openaire   +3 more sources