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Constraining the p-Mode-g-Mode Tidal Instability with GW170817

Abbott, B. P.; Abbott, R.; Abbott, T. D.; Altin, Paul; Chow, Jong; Forsyth, Perry; Kijbunchoo, Nutsinee; Mansell, Georgia; Manske, Michael; McClelland, David; McManus, David; McRae, Terry; Nguyen, Thanh; Rabeling, David; Scott, Susan M.; Shaddock, Daniel; Slagmolen, Bram; Ward, Robert; Wette, Karl; Yap, Min Jet; Holland, Nathan

Description

We analyze the impact of a proposed tidal instability coupling p modes and g modes within neutron stars on GW170817. This nonresonant instability transfers energy from the orbit of the binary to internal modes of the stars, accelerating the gravitational-wave driven inspiral. We model the impact of this instability on the phasing of the gravitational wave signal using three parameters per star: An overall amplitude, a saturation frequency, and a spectral index. Incorporating these additional...[Show more]

CollectionsANU Research Publications
Date published: 2019
Type: Journal article
URI: http://hdl.handle.net/1885/205526
Source: Physical Review Letters
DOI: 10.1103/PhysRevLett.122.061104
Access Rights: Open Access

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