Regular Article - Theoretical Physics
Greybody factors for massive scalar field emitted from black holes in dRGT massive gravity
Department of Mathematics and Computer Science, Faculty of Science, Chulalongkorn University, 10330, Bangkok, Thailand
2 Physics Program, Faculty of Science, Chandrakasem Rajabhat University, 10900, Bangkok, Thailand
3 The Institute for Fundamental Study “The Tah Poe Academia Institute”, 2nd Floor, Mahathamracha Building A, Naresuan University, 65000, Mueang Phitsanulok, Thailand
Accepted: 13 July 2023
Published online: 25 July 2023
Greybody factors are transmission probabilities of the Hawking radiation, which are emitted from black holes and can be obtained from the gravitational potential of black holes. The de Rham, Gabadadze, and Tolly (dRGT) massive gravity is one of the gravity theories that modified general relativity. In this paper, we investigate the greybody factor from the massive scalar field in both the asymptotically dS and the AdS spacetime using the WKB and the rigorous bound methods. We found that the greybody factor depends on the shape of the potential as found in quantum mechanics. The higher the potential barrier, the lower the amount of the greybody factor. Interestingly, for the low multipole case, we found that there exists a critical mass which provides the maximum bound of the greybody factor. This is a crucial feature of the massive scalar field on the greybody factor from the black holes in both the asymptotically dS and the AdS spacetime.
© The Author(s) 2023
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