BlackHawk: a public code for calculating the Hawking evaporation spectra of any black hole distribution

We discuss black hole type solutions and wormhole type ones in the effective gravity models. Such models appear during the attempts to construct the quantum theory of gravity. The mentioned solutions, being, mostly, the perturbative generalisations of well-known ones in general relativity, carry out additional set of parameters and, therefore could help, for example, in the studying of the last stages of Hawking evaporation, in extracting the possibilities for the experimental or observational search and in helping to constrain by astrophysical data.

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THE HAWKING EVAPORATION OF DIRAC PARTICLES IN GENERAL KERR-NEWMAN BLACK HOLE BACKGROUND

Acta Physica Sinica ◽

10.7498/aps.31.207 ◽

1982 ◽

Vol 31 (2) ◽

pp. 207

Author(s):

XU CHONG-MING ◽

SHEN YOU-GEN

Keyword(s):

Black Hole ◽

Dirac Particles ◽

Black Hole Background ◽

Newman Black Hole ◽

Hawking Evaporation

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ACCRETION MECHANISMS ONTO PRIMORDIAL BLACK HOLES

International Journal of Modern Physics D ◽

10.1142/s0218271810017433 ◽

2010 ◽

Vol 19 (08n10) ◽

pp. 1249-1252

Author(s):

D. C. GUARIENTO ◽

J. E. HORVATH

Keyword(s):

Black Holes ◽

Black Hole ◽

Dark Energy ◽

Perfect Fluid ◽

Test Fluid ◽

Primordial Black Hole ◽

Primordial Black Holes ◽

Accretion Model ◽

Hawking Evaporation

We study the evolution of a primordial black hole (PBH) taking into account the presence of dark energy modeled by a general perfect fluid. In the specific case of a stationary non-self-gravitating test fluid, the competition between radiation accretion, Hawking evaporation and the accretion of such a fluid has been studied in detail. The evaporation of PBHs is quite modified at late times by these effects. We address further generalizations of this scenario to consider other types of fluids, and point out early developments of a nonstationary accretion model.

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Lower-dimensional corpuscular gravity and the end of black hole evaporation

Modern Physics Letters A ◽

10.1142/s0217732319501748 ◽

2019 ◽

Vol 34 (22) ◽

pp. 1950174

Author(s):

Roberto Casadio ◽

Andrea Giusti ◽

Jonas Mureika

Keyword(s):

Black Holes ◽

Black Hole ◽

Occupation Number ◽

Planck Scale ◽

Friedmann Equation ◽

Dimensional Spacetime ◽

Spatial Dimensions ◽

Bose Einstein ◽

Lower Dimensional ◽

Hawking Evaporation

Black holes in [Formula: see text] spatial dimensions are studied from the perspective of the corpuscular model of gravitation, in which black holes are described as Bose–Einstein condensates (BEC) of (virtual soft) gravitons. In particular, since the energy of these gravitons should increase as the black hole evaporates, eventually approaching the Planck scale, the lower-dimensional cases could provide important insight into the late stages and end of Hawking evaporation. We show that the occupation number of gravitons in the condensate scales holographically in all dimensions as [Formula: see text], where [Formula: see text] is the relevant length for the system in the [Formula: see text]-dimensional spacetime. In particular, this analysis shows that black holes cannot contain more than a few gravitons in [Formula: see text]. Since dimensional reduction is a common feature of many models of quantum gravity, this result can shed light on the end of the Hawking evaporation. We also consider [Formula: see text]-dimensional cosmology in the context of corpuscular gravity and show that the Friedmann equation reproduces the expected holographic scaling as in higher dimensions.

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Black-hole relics in string gravity: last stages of Hawking evaporation

Classical and Quantum Gravity ◽

10.1088/0264-9381/19/16/314 ◽

2002 ◽

Vol 19 (16) ◽

pp. 4431-4443 ◽

Cited By ~ 40

Author(s):

S Alexeyev ◽

A Barrau ◽

G Boudoul ◽

O Khovanskaya ◽

M Sazhin

Keyword(s):

Black Hole ◽

String Gravity ◽

Hawking Evaporation

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Hawking evaporation of black holes in massive gravity

The European Physical Journal C ◽

10.1140/epjc/s10052-020-08678-1 ◽

2020 ◽

Vol 80 (11) ◽

Author(s):

Meng-Shi Hou ◽

Hao Xu ◽

Yen Chin Ong

Keyword(s):

Black Holes ◽

Black Hole ◽

Null Geodesic ◽

Massive Gravity ◽

Late Time ◽

De Sitter ◽

Emission Surface ◽

Metric Function ◽

The Impact ◽

Hawking Evaporation

AbstractWe study the Hawking evaporation of a class of black hole solutions in dRGT massive gravity, in which the graviton mass gives rise to an effective negative cosmological constant. We found that the effective emission surface can be either proportional to the square of the effective AdS length scale, or corresponds to the square of the impact parameter of the null geodesic that falls onto the photon orbit of the black hole. Furthermore, depending on the black hole parameters, the emission surface could switch from one to another as the black hole loses mass during the evaporation process. Furthermore, the black holes can either evaporate completely or become a remnant at late time. Our result is more generally applicable to any asymptotically anti-de Sitter-like black hole solution in any theory whose metric function has a term linear in the coordinate radius, with massive gravity being only a concrete example.

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