Found 1999 results, showing the newest relevant preprints. Sort by relevancy only.Update me on new preprints

Subtracting compact binary foreground sources to reveal primordial gravitational-wave backgrounds

Detection of primordial gravitational-wave backgrounds generated during the early universe phase transitions is a key science goal for future ground-based detectors. Expand abstract.
8 days ago
7/10 relevant
arXiv

Communication through quantum fields near a black hole

We analyze the information carrying capacity of direct and black hole-orbiting null geodesics as well as of the timelike contributions that arise because the strong Huygens principle does not hold on the Schwarzschild background. Expand abstract.
8 days ago
7/10 relevant
arXiv

Geodesic motion around a supersymmetric AdS5 black hole

In this article the geodesic motion of test particles in the spacetime of a supersymmetric AdS$_5$ black hole is studied. Expand abstract.
8 days ago
7/10 relevant
arXiv

Greybody factor and sparsity of Hawking radiation from a charged spherical black hole with scalar hair

In this work, we consider a particular counter-example to the 'no-hair' conjecture in (3+1) dimensions, namely, a static spherically symmetric charged black hole with a scalar hair. Expand abstract.
11 days ago
9/10 relevant
arXiv

Joule-Thomson Expansion of Regular Bardeen AdS Black Hole Surrounded by Static Anisotropic Quintessence Field

In the present paper, we investigate the required anisotropy of an exact regular Bardeen black hole characterized by its mass $M$, the nonlinear parameter $g$, the quintessence field parameter $a$ in anti-de sitter spacetime with a static quintessence matter field. Expand abstract.
11 days ago
10/10 relevant
arXiv

Growth of Supermassive Black Hole Seeds in ETG Star-Forming Progenitors: Multiple Merging of Stellar Compact Remnants via Gaseous Dynamical Friction and Gravitational Wave Emission

We propose a new mechanism for the growth of supermassive black hole (BH) seeds in the star-forming progenitors of local early-type galaxies (ETGs) at $z\gtrsim 1$. Expand abstract.
11 days ago
7/10 relevant
arXiv

On Regular Black Holes at Finite Temperature

Then the gravitational entropy and the temperature of the event horizon of a class of regular black holes are determined. Expand abstract.
11 days ago
10/10 relevant
arXiv

Distinguishing Brans-Dicke-Kerr type naked singularities and black holes with their thin disk electromagnetic radiation properties

The possible existence of naked singularities, hypothetical astrophysical objects, characterized by a gravitational singularity without an event horizon is still an open problem in present day astrophysics. Expand abstract.
13 days ago
10/10 relevant
arXiv

Broadband X-ray analysis of 1E 1740.7-2942: constraints on spin, inclination and a tentative black hole mass

1E 1740.7-2942 is one of the strongest hard X-ray emitters in the Galactic Centre region, believed to be a black hole in a high-mass X-ray binary system. Expand abstract.
14 days ago
9/10 relevant
arXiv

On the equipartition theorem and black holes nongaussian entropies

In this Letter we have shown that, from the standard thermodynamic functions, the mathematical form of an equipartition theorem may be related to the algebraic expression of a particular entropy initially chosen to describe the black hole thermodynamics. Expand abstract.
15 days ago
9/10 relevant
arXiv