Radiation emitted by a source orbiting a Schwarzschild--anti--de Sitter black hole

Autor:	Brito, J. P. B., Bernar, R. P., Crispino, L. C. B.
Rok vydání:	2022
Předmět:	General Relativity and Quantum Cosmology High Energy Physics - Theory
Zdroj:	Phys. Rev. D 104, 124085 (2021)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevD.106.104033
Popis:	We study the scalar radiation emitted by a source orbiting a Schwarzschild--anti--de Sitter black hole in circular geodesics. We obtain the emitted power using quantum field theory in curved spacetimes at tree level with reflective boundary conditions at infinity. We compare our results with the ones obtained in Schwarzschild and Schwarzschild--de Sitter ($\Lambda > 0$) spacetimes. In the Schwarzschild-de Sitter spacetime we observe an enhancement of the emitted power associated to the lower multipole modes, when compared with the Schwarzschild case. In contrast, for the Schwarzschild-anti-de Sitter spacetime, the enhancement is rather of the higher multipole modes. Comment: 10 pages, 6 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2201.01573 Zobrazit plný text záznamu View this record from Arxiv