151. Accretion of matter by a Charged dilaton black hole
- Author
-
Jia, Yinan, He, Tong-Yu, Wang, Wen-Qian, Han, Zhan-Wen, and Yang, Rong-Jia
- Subjects
General Relativity and Quantum Cosmology ,Astrophysics - High Energy Astrophysical Phenomena ,High Energy Physics - Theory - Abstract
Considering accretion onto a charged dilaton black hole, the fundamental equations governing accretion, general analytic expressions for critical points, critical velocity, critical speed of sound, and ultimately the mass accretion rate are obtained. A new constraint on the dilation parameter coming from string theory is found and the case for polytropic gas is delved into a detailed discussion. It is found that the dialtion and the adiabatic index of accreted material have deep effects on the accretion process., Comment: 9 pages, 3 figures
- Published
- 2024
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