Source coupled to the massive scalar field orbiting a stellar object

Castiñeiras, Jorge; Crispino, Luís C. B.; Filho, Damião Pedro Meira

doi:10.1103/physrevd.75.024012

Cited by 23 publications

(14 citation statements)

References 20 publications

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“…Scattering of massive fields by a Schwarzschild black hole was studied (for bosons and fermions) in [12][13][14][15]. The low-frequency absorption cross section for the charged massive scalar field in the ndimensional Reissner-Nordström spacetime was analyzed in Ref.…”

Section: Introductionmentioning

confidence: 99%

Absorption of a massive scalar field by a charged black hole

et al. 2014

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We calculate the absorption cross section of a massive neutral scalar field impinging upon a Reissner-Nordstr\"om black hole. First, we derive key approximations in the high- and low-frequency regimes. Next, we develop a numerical method to compute the cross section at intermediate frequencies, and present a selection of results. Finally, we draw together our complementary approaches to give a quantitative full-spectrum description of absorption.Comment: 12 pages, 12 figures. To match published versio

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Section: Introductionmentioning

confidence: 99%

Absorption of a massive scalar field by a charged black hole

et al. 2014

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“…Similar incorrect formulae were used in Refs. [25][26][27][28][29]. Correction of these formulae does not affect the main conclusions in those references.…”

Section: A Quantization Of Gravitational Perturbations In Schwarzschmentioning

confidence: 96%

Gravitational waves emitted by a particle rotating around a Schwarzschild black hole: A semiclassical approach

2017

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We analyze the gravitational radiation emitted from a particle in circular motion around a Schwarzschild black hole using the framework of quantum field theory in curved spacetime at tree level. The gravitational perturbations are written in a gauge-invariant formalism for spherically symmetric spacetimes. We discuss the results, comparing them to the radiation emitted by a particle when it is assumed to be orbiting a massive object due to a Newtonian force in flat spacetime.

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“…Therefore, equations ( The subsequent low-energy approximation for W S,obs needs to be corrected accordingly. We also note that similar corrections need to be made in [1][2][3][4][5][6], which used equations similar to (35) and (36) for estimating the portion of the radiation emitted to infinity.…”

Section: Semmentioning

confidence: 99%