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arXiv · 1808.03164

The GWs from the S-stars revolving around the SMBH at Sgr A*

Rong-Gen Cai·Tong-Bo Liu·Shao-Jiang Wang
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Abstract

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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Rong-Gen Cai, Tong-Bo Liu, Shao-Jiang Wang. 2018-08-23. The GWs from the S-stars revolving around the SMBH at Sgr A*. https://doi.org/10.1088/0253-6102%2F70%2F6%2F735

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