Hawking Radiation of Photons in a Vaidyade Sitter Black Hole
Abstract
Hawking evaporation of photons in a Vaidyade Sitter black hole is investigated by using the method of generalized tortoise coordinate transformation. Both the location and the temperature of the event horizon depend on the time. It is shown that Hawking radiation of photons exists only for the complex Maxwell scalar $\phi_0$ in the advanced EddingtonFinkelstein coordinate system. This asymmetry of Hawking radiation for different components of Maxwell fields probably arises from the asymmetry of spacetime in the advanced EddingtonFinkelstein coordinate system. It is shown that the black body radiant spectrum of photons resembles that of KleinGordon particles. PACS numbers: 04.70.Dy, 97.60.Lf
 Publication:

arXiv eprints
 Pub Date:
 November 2001
 arXiv:
 arXiv:grqc/0111045
 Bibcode:
 2001gr.qc....11045W
 Keywords:

 General Relativity and Quantum Cosmology
 EPrint:
 Latex, 10 pages, no figure, to appear in Int. J. Theor. Phys. 41 (2002) No. 3