Circular geodesics and accretion disk in the spacetime of a black hole including global monopole  

作　　者：孙旭东 陈菊华 王永久 

机构地区：[1]College of Physics and Information Science, Hunan Normal University

出　　处：《Chinese Physics B》2014年第6期79-81,共3页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.10873004);the State Key Development Program for Basic Research Program of China(Grant No.2010CB832803);the Program for Changjiang Scholars and Innovative Research Team in University(Grant No.IRT0964)

摘　　要：We study circular time-like geodesics in the spacetime of a black hole including global monopole. We show that when the range of parameter changed the properties of the circular geodesics and the radiation of accretion disks are different. It follows that the properties of the accretion disk around black hole including global monopole can be different from that of a disk around Schwarzschild black hole.We study circular time-like geodesics in the spacetime of a black hole including global monopole. We show that when the range of parameter changed the properties of the circular geodesics and the radiation of accretion disks are different. It follows that the properties of the accretion disk around black hole including global monopole can be different from that of a disk around Schwarzschild black hole.

关 键 词：global monopole GEODESICS accretion disk 

分 类 号：P145.8[天文地球—天体物理] O186.12[天文地球—天文学]