Effects of Lorentz Breaking on the Accretion onto a Schwarzschild-like Black Hole

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英文篇名：Effects of Lorentz Breaking on the Accretion onto a Schwarzschild-like Black Hole 作者：杨荣佳 ; 高贺 ; 郑瑶光 ; 吴琴 英文作者：Rong-Jia Yang;He Gao;Yao-Guang Zheng;Qin Wu;College of Physical Science and Technology, Hebei University;Hebei Key Lab of Optic-Electronic Information and Materials, Hebei University;National-Local Joint Engineering Laboratory of New Energy Photoelectric Devices, Hebei University;School of Information Engineering, Guangdong Medical University; 英文关键词：accretion;;mass accretion rate;;Lorentz breaking;;Schwarzschild-like black hole 中文刊名：CITP 英文刊名：理论物理(英文版) 机构：College of Physical Science and Technology, Hebei University;Hebei Key Lab of Optic-Electronic Information and Materials, Hebei University;National-Local Joint Engineering Laboratory of New Energy Photoelectric Devices, Hebei University;School of Information Engineering, Guangdong Medical University; 出版日期：2019-05-01 出版单位：Communications in Theoretical Physics 年：2019 期：v.71 基金：Supported by National Natural Science Foundation of China under Grant No.11273010;; the Hebei Provincial Outstanding Youth Fund under Grant No.A2014201068;; the Outstanding Youth Fund of Hebei University under Grant No.2012JQ02;; the Midwest Universities Comprehensive Strength Promotion Project 语种：英文; 页：CITP201905010 页数：5 CN：05 ISSN：11-2592/O3 分类号：98-102

摘要

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.
        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.

引文

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