Results 1 to 10 of about 693,465 (278)

Dilatonic BTZ black holes with power-law field

Physics Letters B, 2017
Motivated by low energy effective action of string theory and numerous applications of BTZ black holes, we will consider minimal coupling between dilaton and nonlinear electromagnetic fields in three dimensions.
S.H. Hendi, B. Eslam Panah, S. Panahiyan, A. Sheykhi   +3 more
doaj   +1 more source

Stuffed Black Holes

, 1998
Initial data corresponding to spacetimes containing black holes are considered in the time symmetric case. The solutions are obtained by matching across the apparent horizon different, conformally flat, spatial metrics.
A. Arbona, A. Lichnerowicz, C. Bona, C. W. Misner, C. W. Misner, J. Bowen, J. Carot, J. Massó, J. Stachel, J. Stela, J. W. York, Jr., J. W. York, Jr., L. Mas, L. Smarr, R. W. Lindquist, W. R. Smythe, Y. Choquet-Bruhat   +16 more
core   +1 more source

New Estimates of the Spin and Accretion Rate of the Black Hole M87*

The Astrophysical Journal Letters
In this Letter, we use the imaging results of M87* from the Event Horizon Telescope (EHT) to calculate the rotational velocity of the inner edge of the accretion disk and find a value of ∼0.14 c .
Michael Drew, Joshua S. Stanway, Brett A. Patterson, Timothy J. Walton, Derek Ward-Thompson   +4 more
doaj   +1 more source

Throat quantization of the Schwarzschild-Tangherlini(-AdS) black hole

EPJ Web of Conferences, 2018
By the throat quantization pioneered by Louko and Mäkelä, we derive the mass and area/entropy spectra for the Schwarzschild-Tangherlini-type asymptotically flat or AdS vacuum black hole in arbitrary dimensions. Using the WKB approximation for black holes
Maeda Hideki
doaj   +1 more source

Hairy black holes and the endpoint of AdS$_4$ charged superradiance

, 2017
We construct hairy black hole solutions that merge with the anti-de Sitter (AdS$_4$) Reissner-Nordstr\"om black hole at the onset of superradiance. These hairy black holes have, for a given mass and charge, higher entropy than the corresponding AdS$_4 ...
Dias, Oscar J. C., Masachs, Ramon
core   +1 more source

Photon Shells, Black Hole Shadows, and Accretion Toroids

The Astrophysical Journal Supplement Series
We analyze the properties of the Kerr black hole (BH) photon shell, focusing on the influence of aggregates of corotating and counterrotating toroids (ringed accretion disks, hereafter RAD), orbiting in the BH photon shell (photon shell “obscuration ...
D. Pugliese, Z. Stuchlík
doaj   +1 more source

Non-asymptotically flat, non-AdS dilaton black holes

, 2004
We show that previously known non-asymptotically flat static black hole solutions of Einstein-Maxwell-dilaton theory may be obtained as near-horizon limits of asymptotically flat black holes.
C. M. Chen, Cédric Leygnac, D. Maison, D. Rasheed, D. J. Gross, F. R. Tangherlini, G. Clément, G. Clément, G. Gibbons, G. Neugebauer, G. W. Gibbons, G. W. Gibbons, G. W. Gibbons, Gérard Clément, H. Stephani, J. M. Bardeen, K. C. K. Chan, M. Mars, O. Aharony, R. Arnowitt, R. Myers, S. Deser, Y. Kiem   +22 more
core   +2 more sources

Large rotating AdS black holes from fluid mechanics

, 2008
We use the AdS/CFT correspondence to argue that large rotating black holes in global AdS(D) spaces are dual to stationary solutions of the relativistic Navier-Stokes equations on S**(D-2).
Bhattacharyya, Sayantani, Lahiri, Subhaneil, Loganayagam, R., Minwalla, Shiraz   +3 more
core   +1 more source

How a Klein–Nishina Modified Eddington-limited Accretion Explains Rapid Black Hole Growth in the Early Universe

The Astrophysical Journal
The discovery of quasars and their supermassive black holes (SMBHs) over 10 ^9 ${M}_{{\rm{\odot }}}$ merely hundreds of millions of years after the Big Bang generates tension with the idea of Eddington-limited accretion and pressures the community into ...
Jackson Frangos, Erick Rosen, Michael Williams, Chandra B. Singh, David Garofalo   +4 more
doaj   +1 more source

Strong gravitational lensing effects around rotating regular black holes

Physics Letters B
In this letter, we investigate the strong gravitational lensing effects around two classes of rotating regular black holes, which behave as non-singular Minkowski core at the center.
Ming-Yu Guo, Meng-He Wu, Hong Guo, Xiao-Mei Kuang, Fu-Yao Liu   +4 more
doaj   +1 more source