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Tests for the existence of horizon through gravitational waves from a small binary in the vicinity of a massive object

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arxiv 2108.04511 v2 pith:HSAEIKR7 submitted 2021-08-10 astro-ph.CO gr-qchep-phhep-th

Tests for the existence of horizon through gravitational waves from a small binary in the vicinity of a massive object

Yun Fang , Rong-Zhen Guo , Qing-Guo Huang This is my paper
classification astro-ph.CO gr-qchep-phhep-th
keywords horizonwavesbinarygravitationalmassiveobjectsmallwould-be
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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In this letter we calculate the gravitational waves (GWs) emitted from a small binary (SB) by solving the Teukolsky equation in the background of a massive exotic compact object (ECO) which is phenomenologically described by a Schwarzschild geometry with a reflective boundary condition at its "would-be" horizon. The "continuous echo" waves propagating to infinity due to reflectivity of ECO at its "would-be" horizon provide an exquisite probe to the nature of the ECO's horizon.

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