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

被引:13
|
作者
Bernar, Rafael P. [1 ]
Crispino, Luis C. B. [1 ]
Higuchi, Atsushi [2 ]
机构
[1] Fed Univ Para, Fac Fis, BR-66075110 Belem, Para, Brazil
[2] Univ York, Dept Math, York YO10 5DD, N Yorkshire, England
关键词
CIRCULAR ORBIT; RADIATION; PERTURBATIONS; FIELD;
D O I
10.1103/PhysRevD.95.064042
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
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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页数:14
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