Results 21 to 30 of about 1,024,610 (340)

Mimetic black holes [PDF]

open access: yesPhysical Review D, 2020
In this paper, we look for the vacuum static spherically symmetric solution in the mimetic gravity scenario based on the conformal invariance principle. The trivial solution is a stealth Schwarzschild black hole with scalar hair where the mimetic field does not contribute to the background. However, a solution with two naked singularities shows up when
Mohammad Ali Gorji   +3 more
openaire   +2 more sources

Burns space and holography

open access: yesJournal of High Energy Physics, 2023
We elaborate on various aspects of our top-down celestial holographic duality wherein the semiclassical bulk spacetime is a 4d asymptotically flat, self-dual Kähler geometry known as Burns space.
Kevin Costello   +2 more
doaj   +1 more source

Quantum black holes. Black hole temperature without a black hole? [PDF]

open access: yesProceedings of Black Holes in General Relativity and String Theory — PoS(BHs, GR and Strings), 2009
revtex4, 7 pages, Talk given at Workshop "Black Holes in General Relativity and String Theory", August, 24-30, 2008, Veli Losinj ...
openaire   +2 more sources

Area Entropy and Quantized Mass of Black Holes from Information Theory

open access: yesEntropy, 2021
In this paper, we present a derivation of the black hole area entropy with the relationship between entropy and information. The curved space of a black hole allows objects to be imaged in the same way as camera lenses.
Dongshan He, Qingyu Cai
doaj   +1 more source

A Simple, Approximate Method for Analysis of Kerr-Newman Black Hole Dynamics and Thermodynamics [PDF]

open access: yes, 2006
In this work we present a simple, approximate method for analysis of the basic dynamical and thermodynamical characteristics of Kerr-Newman black hole.
Chitta Baral   +3 more
core   +3 more sources

Black-Hole Remnants from Black-Hole–Neutron-Star Mergers [PDF]

open access: yesPhysical Review Letters, 2019
Observations of gravitational waves and their electromagnetic counterparts may soon uncover the existence of coalescing compact binary systems formed by a stellar-mass black hole and a neutron star. These mergers result in a remnant black hole, possibly surrounded by an accretion disk.
Zappa, Francesco   +4 more
openaire   +6 more sources

Celestial amplitudes in an ambidextrous basis

open access: yesJournal of High Energy Physics, 2023
We start by constructing a conformally covariant improvement of the celestial light transform which keeps track of the mixing between incoming and outgoing states under finite Lorentz transformations in ℝ2,2.
Carmen Jorge-Diaz   +2 more
doaj   +1 more source

Logarithmic correction to the Bekenstein-Hawking entropy of the BTZ black hole [PDF]

open access: yes, 2001
We derive an exact expression for the partition function of the Euclidean BTZ black hole. Using this, we show that for a black hole with large horizon area, the correction to the Bekenstein-Hawking entropy is $-3/2 log(Area)$, in agreement with that for ...
Banados M   +13 more
core   +2 more sources

First Detection of an Overmassive Black Hole Galaxy UHZ1: Evidence for Heavy Black Hole Seed Formation from Direct Collapse

open access: yesThe Astrophysical Journal Letters, 2023
The recent Chandra-JWST discovery of a quasar in the z ≈ 10.1 galaxy UHZ1 reveals that accreting supermassive black holes were already in place 470 million years after the Big Bang. The Chandra X-ray source detected in UHZ1 is a Compton-thick quasar with
Priyamvada Natarajan   +5 more
doaj   +1 more source

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