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Toward Observing Neutron Star Collapse with Gravitational Wave Detectors by Teng Zhang; Jiří Smetana; Yikang Chen; Joe Bentley; Denis Martynov; Haixing Miao; William E. East; Huan Yang is a Physics and Astronomy article available to read on EtoBox.

What is Toward Observing Neutron Star Collapse with Gravitational Wave Detectors about?

Gravitational waves from binary neutron star inspirals have been detected along with the electromagnetic transients coming from the aftermath of the merger in GW170817. However, much is still unknown about the postmerger dynamics that connects these two sets of observables. This includes if, and when, the postmerger remnant star collapses to a black hole, and what are the necessary conditions to power a short gamma-ray burst and other observed electromagnetic counterparts. Observing the collapse of the postmerger neutron star would shed light on these questions, constraining models for the short gamma-ray burst engine and the hot neutron star equation of state. In this work, we explore the scope of using gravitational wave detectors to measure the timing of the collapse either indirectly, by establishing the shutoff of the postmerger gravitational emission, or-more challengingly-directly, by detecting the collapse signal. For the indirect approach, we consider a kilohertz high-frequency detector design that utilizes a previously studied coupled arm cavity and signal recycling cavity resonance. This design would give a signal-to-noise ratio of 0.5-8.6 (depending on the variation of

Who reads Toward Observing Neutron Star Collapse with Gravitational Wave Detectors?

Author

Teng Zhang; Jiří Smetana; Yikang Chen; Joe Bentley; Denis Martynov; Haixing Miao; William E. East; Huan Yang

Publisher

American Physical Society (APS)

Published

2021

Language

EN

Field

Physics and Astronomy (Physical Sciences)