Bounding the greybody factors for the Reissner-Nordström black holes

Abstract

A black hole can emit radiation called Hawking radiation. Such radiation seen by an observer outside the black hole differs from the original radiation near the horizon of the black hole by the so-called "greybody factor". In this paper, the bounds of the greybody factors for the Reissner-Nordström black holes are obtained. These bounds can be derived by using the 2 x 2 transfer matrices. It is found that the charges of black holes act as good barriers.

6 pages, 4 figures, to appear in the proceedings of the ICAST 2012 --- International Conference on Advancement in Science and Technology (Kuantan, Malaysia)

References in corpus (2)

• Bounding the greybody factors for Schwarzschild black holes
• Bounding the Bogoliubov coefficients

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