Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2012-03-13
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
12 Pages, 2 figures; Accepted for publication in "Astrophysics and Space Science" journal
Scientific paper
This paper deals with the semiclassical radiation spectrum of static and circularly symmetric 3D charged dilaton black holes with cosmological constant {\Lambda} in non-asymptotically flat spacetimes. We first review the 3D charged dilaton black holes which are solution to low-energy string action. The wave equation of a massless scalar field is shown to be exactly solvable in terms of hypergeometric functions. Thus, the radiation spectrum and its corresponding temperature are obtained, precisely. Computations at high frequency regime show that the radiation spectrum yields the Hawking temperature of the black hole with no charge. Unlike the chargeless case, the Hawking temperature of the charged dilaton black holes is derived from the radiation spectrum at the low frequencies. The utmost importance of the {\Lambda} in the latter result is highlighted.
No associations
LandOfFree
Effect of the cosmological constant in the Hawking radiation of 3D charged dilaton black hole does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Effect of the cosmological constant in the Hawking radiation of 3D charged dilaton black hole, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Effect of the cosmological constant in the Hawking radiation of 3D charged dilaton black hole will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-144075