Massive complex scalar field in the Kerr-Sen geometry: Exact solution of wave equation and Hawking radiation
arXiv:gr-qc/0303075 · doi:10.1063/1.1539899
Abstract
The separated radial part of a massive complex scalar wave equation in the Kerr- Sen geometry is shown to satisfy the generalized spheroidal wave equation which is, in fact, a confluent Heun equation up to a multiplier. The Hawking evaporation of scalar particles in the Kerr-Sen black hole background is investigated by the Damour-Ruffini-Sannan method. It is shown that quantum thermal effect of the Kerr-Sen black hole has the same character as that of the Kerr-Newman black hole.
Revtex, 5 pages, no figure. A simplified version of gr-qc/0107037