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GWs from S-stars Revolving Around SMBH at Sgr A

GWs from S-stars Revolving Around SMBH at Sgr A

作     者:Rong-Gen Cai Tong-Bo Liu Shao-Jiang Wang 蔡荣根;刘同波;王少江

作者机构:CAS Key Laboratory of Theoretical PhysicsInstitute of Theoretical PhysicsChinese Academy of Sciences School of Physical SciencesUniversity of Chinese Academy of Sciences 

出 版 物:《Communications in Theoretical Physics》 (理论物理通讯(英文版))

年 卷 期:2018年第69卷第12期

页      面:735-748页

核心收录:

学科分类:07[理学] 0702[理学-物理学] 

基  金:Supported by the Natural Science Foundation of China under Grant Nos.11690022,11375247,11435006,and 11647601 the Strategic Priority Research Program of CAS under Grant No.XDB23030100 the Key Research Program of Frontier Sciences of CAS 

主  题:gravitational waves extreme-mass-ratio-inspirals supermassive black hole 

摘      要:A preliminary estimation of gravitational waves(GWs) from the extreme-mass-ratio-inspirals(EMRIs)system in the Galactic Centre(GC) is given for the 37 observed S-stars revolving around the supermassive black hole(SMBH) at Sagittarius(Sgr) A*. Within this century, the total strain of the gravitational waveform calculated from the post-Newtonian(PN) method with eccentricity is well below the current planned sensitivity of pulsar-timing-array(PTA). New technology might be required in order to extract GW signal from this EMRIs system for future PTA detections.

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