期刊
INTERNATIONAL JOURNAL OF MODERN PHYSICS A
卷 26, 期 23, 页码 3997-4008出版社
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0217751X11054036
关键词
Chern-Simons black hole; absorption cross-section; black holes
资金
- Comision Nacional de Ciencias y Tecnologia through Fondecyt [1110076, 1090613, 1110230]
- PUCV [DI-123.713/2011]
In this paper we study the effects of black hole mass on the absorption cross-section for a massive scalar field propagating in a five-dimensional topological Chern-Simons black hole at the low-frequency limit. We consider the two branches of black hole solutions (alpha = +/- 1) and we show that, if the mass of black hole increase the absorption cross-section decreases at the zero-frequency limit for the branch alpha = -1 and for the other branch, alpha = 1, the behavior is opposite, if the black hole mass increase the absorption cross-section increases. Also we find that beyond a certain frequency value, the mass black hole does not affect the absorption cross-section.
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