Impact of the tidal p−g instability on the gravitational wave signal from coalescing binary neutron stars
Recent studies suggest that coalescing neutron stars are subject to a fluid instability involving the nonlinear coupling of the tide to p modes and g modes. Its influence on the inspiral dynamics and thus the gravitational wave signal is, however, uncertain because we do not know precisely how the i...
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| Format: | Article |
| Language: | English |
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American Physical Society
2017
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| Online Access: | http://hdl.handle.net/1721.1/106209 https://orcid.org/0000-0001-8196-9267 https://orcid.org/0000-0003-2700-0767 https://orcid.org/0000-0001-9194-2084 |
| _version_ | 1826214271380357120 |
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| author | Essick, Reed Clasey Vitale, Salvatore Weinberg, Nevin N. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Essick, Reed Clasey Vitale, Salvatore Weinberg, Nevin N. |
| author_sort | Essick, Reed Clasey |
| collection | MIT |
| description | Recent studies suggest that coalescing neutron stars are subject to a fluid instability involving the nonlinear coupling of the tide to p modes and g modes. Its influence on the inspiral dynamics and thus the gravitational wave signal is, however, uncertain because we do not know precisely how the instability saturates. Here we construct a simple, physically motivated model of the saturation that allows us to explore the instability’s impact as a function of the model parameters. We find that for plausible assumptions about the saturation, current gravitational wave detectors might miss >70% of events if only point particle waveforms are used. Parameters such as the chirp mass, component masses, and luminosity distance might also be significantly biased. On the other hand, we find that relatively simple modifications to the point particle waveform can alleviate these problems and enhance the science that emerges from the detection of binary neutron stars. |
| first_indexed | 2024-09-23T08:14:44Z |
| format | Article |
| id | mit-1721.1/106209 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T08:14:44Z |
| publishDate | 2017 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/1062092022-09-30T08:34:36Z Impact of the tidal p−g instability on the gravitational wave signal from coalescing binary neutron stars Essick, Reed Clasey Vitale, Salvatore Weinberg, Nevin N. Massachusetts Institute of Technology. Department of Physics MIT Kavli Institute for Astrophysics and Space Research LIGO (Observatory : Massachusetts Institute of Technology) Essick, Reed Clasey Vitale, Salvatore Weinberg, Nevin N. Recent studies suggest that coalescing neutron stars are subject to a fluid instability involving the nonlinear coupling of the tide to p modes and g modes. Its influence on the inspiral dynamics and thus the gravitational wave signal is, however, uncertain because we do not know precisely how the instability saturates. Here we construct a simple, physically motivated model of the saturation that allows us to explore the instability’s impact as a function of the model parameters. We find that for plausible assumptions about the saturation, current gravitational wave detectors might miss >70% of events if only point particle waveforms are used. Parameters such as the chirp mass, component masses, and luminosity distance might also be significantly biased. On the other hand, we find that relatively simple modifications to the point particle waveform can alleviate these problems and enhance the science that emerges from the detection of binary neutron stars. United States. National Aeronautics and Space Administration (ATP Grant NNX14AB40G) National Science Foundation (U.S.) Laser Interferometer Gravitational Wave Observatory 2017-01-05T19:07:06Z 2017-01-05T19:07:06Z 2016-11 2016-09 2016-11-28T23:00:07Z Article http://purl.org/eprint/type/JournalArticle 2470-0010 2470-0029 http://hdl.handle.net/1721.1/106209 Essick, Reed, Salvatore Vitale, and Nevin N. Weinberg. “Impact of the Tidal P − G Instability on the Gravitational Wave Signal from Coalescing Binary Neutron Stars.” Physical Review D 94.10 (2016): n. pag. © 2016 American Physical Society https://orcid.org/0000-0001-8196-9267 https://orcid.org/0000-0003-2700-0767 https://orcid.org/0000-0001-9194-2084 en http://dx.doi.org/10.1103/PhysRevD.94.103012 Physical Review D Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. American Physical Society application/pdf American Physical Society American Physical Society |
| spellingShingle | Essick, Reed Clasey Vitale, Salvatore Weinberg, Nevin N. Impact of the tidal p−g instability on the gravitational wave signal from coalescing binary neutron stars |
| title | Impact of the tidal p−g instability on the gravitational wave signal from coalescing binary neutron stars |
| title_full | Impact of the tidal p−g instability on the gravitational wave signal from coalescing binary neutron stars |
| title_fullStr | Impact of the tidal p−g instability on the gravitational wave signal from coalescing binary neutron stars |
| title_full_unstemmed | Impact of the tidal p−g instability on the gravitational wave signal from coalescing binary neutron stars |
| title_short | Impact of the tidal p−g instability on the gravitational wave signal from coalescing binary neutron stars |
| title_sort | impact of the tidal p g instability on the gravitational wave signal from coalescing binary neutron stars |
| url | http://hdl.handle.net/1721.1/106209 https://orcid.org/0000-0001-8196-9267 https://orcid.org/0000-0003-2700-0767 https://orcid.org/0000-0001-9194-2084 |
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