Results 21 to 30 of about 947,753 (292)
Probing the black hole metric: Black hole shadows and binary black-hole inspirals [PDF]
Physical Review D, 2021 Physical Review D ...
Dimitrios Psaltis +3 more
openaire +3 more sources
Physical Review D, 1994 Two techniques for computing black hole entropy in generally covariant gravity theories including arbitrary higher derivative interactions are studied. The techniques are Wald's Noether charge approach introduced recently, and a field redefinition method developed in this paper.
Jacobson, Ted +2 more
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Black Hole Thermodynamics and Two-Dimensional Dilaton Gravity Theory [PDF]
, 1999 We relate various black hole solutions in the near-horizon region to black hole solutions in two-dimensional dilaton gravity theories in order to argue that thermodynamics of black holes in D>=4 can be effectively described by thermodynamics of black ...
A. Ali +37 more
core +3 more sources
Kretschmann Scalar for a Kerr-Newman Black Hole [PDF]
, 1999 I have derived the Kretschmann scalar for a general black hole of mass m, angular momentum per unit mass a, and electric charge Q. The Kretschmann scalar gives the amount of curvature of spacetime, as a function of position near (and within) a black hole.
Henry, Richard C.
core +3 more sources
Celestial amplitudes in an ambidextrous basis
Journal 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
Area Entropy and Quantized Mass of Black Holes from Information Theory
Entropy, 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
Explosive Nucleosynthesis from GRB and Hypernova Progenitors: Direct Collapse versus Fallback [PDF]
, 2006 The collapsar engine behind long-duration gamma-ray bursts extracts the energy released from the rapid accretion of a collapsing star onto a stellar-massed black hole. In a collapsing star, this black hole can form in two ways: the direct collapse of the
Fryer, Christopher L. +2 more
core +3 more sources
Physical Review D, 1992 A renormalizable theory of quantum gravity coupled to a dilaton and conformal matter in two space-time dimensions is analyzed. The theory is shown to be exactly solvable classically. Included among the exact classical solutions are configurations describing the formation of a black hole by collapsing matter.
Callan, C. +3 more
openaire +3 more sources
Shapes and Positions of Black Hole Shadows in Accretion Disks and Spin Parameters of Black Holes
, 2004 Can we determine a spin parameter of a black hole by observation of a black hole shadow in an accretion disk? In order to answer this question, we make a qualitative analysis and a quantitative analysis of a shape and a position of a black hole shadow ...
Fabian A. C. +11 more
core +2 more sources