Effects of Lorentz Breaking on the Accretion onto a Schwarzschild-like Black Hole |
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| Authors: | Rong-Jia Yang He Gao Yao-Guang Zheng Qin Wu |
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| Institution: | 1. College of Physical Science and Technology, Hebei University, Baoding 071002, China;2. Hebei Key Lab of Optic-Electronic Information and Materials, Hebei University, Baoding 071002, China;3. National-Local Joint Engineering Laboratory of New Energy Photoelectric Devices, Hebei University, Baoding 071002, China;4. School of Information Engineering, Guangdong Medical University, Dongguan 523808, China |
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| Abstract: | We formulate and solve the problem of spherically symmetric, steady state, adiabatic accretion onto a Schwarzschild-like black hole obtained recently. We derive the general analytic expressions for the critical points, the critical velocity, the critical speed of sound, and subsequently the mass accretion rate. The case for polytropic gas is discussed in detail. We find the parameter characterizing the breaking of Lorentz symmetry will slow down the mass accretion rate, while has no effect on the gas compression and the temperature profile below the critical radius and at the event horizon. |
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| Keywords: | accretion mass accretion rate Lorentz breaking Schwarzschild-like black hole |
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