Tuning Advanced LIGO to kilohertz signals from neutron-star collisions
© 2021 American Physical Society. Gravitational waves produced at kilohertz frequencies in the aftermath of a neutron star collision can shed light on the behavior of matter at extreme temperatures and densities that are inaccessible to laboratory experiments. Gravitational-wave interferometers are...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society (APS)
2022
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| Online Access: | https://hdl.handle.net/1721.1/141727 |
| _version_ | 1826196703153225728 |
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| author | Ganapathy, Dhruva McCuller, Lee Rollins, Jameson Graef Hall, Evan D Barsotti, Lisa Evans, Matthew |
| author2 | LIGO (Observatory : Massachusetts Institute of Technology) |
| author_facet | LIGO (Observatory : Massachusetts Institute of Technology) Ganapathy, Dhruva McCuller, Lee Rollins, Jameson Graef Hall, Evan D Barsotti, Lisa Evans, Matthew |
| author_sort | Ganapathy, Dhruva |
| collection | MIT |
| description | © 2021 American Physical Society. Gravitational waves produced at kilohertz frequencies in the aftermath of a neutron star collision can shed light on the behavior of matter at extreme temperatures and densities that are inaccessible to laboratory experiments. Gravitational-wave interferometers are limited by quantum noise at these frequencies but can be tuned via their optical configuration to maximize the probability of postmerger signal detection. We compare two such tuning strategies to turn Advanced LIGO into a postmerger-focused instrument: first, a wideband tuning that enhances the instrument's signal-to-noise ratio 40-80% broadly above 1 kHz relative to the baseline, with a modest sensitivity penalty at lower frequencies; second, a "detuned"configuration that provides even more enhancement than the wideband tuning, but over only a narrow frequency band and at the expense of substantially worse quantum noise performance elsewhere. With an optimistic accounting for instrument loss and uncertainty in postmerger parameters, the detuned instrument has a 40% sensitivity improvement compared to the wideband instrument. |
| first_indexed | 2024-09-23T10:35:46Z |
| format | Article |
| id | mit-1721.1/141727 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T10:35:46Z |
| publishDate | 2022 |
| publisher | American Physical Society (APS) |
| record_format | dspace |
| spelling | mit-1721.1/1417272023-02-09T19:09:39Z Tuning Advanced LIGO to kilohertz signals from neutron-star collisions Ganapathy, Dhruva McCuller, Lee Rollins, Jameson Graef Hall, Evan D Barsotti, Lisa Evans, Matthew LIGO (Observatory : Massachusetts Institute of Technology) © 2021 American Physical Society. Gravitational waves produced at kilohertz frequencies in the aftermath of a neutron star collision can shed light on the behavior of matter at extreme temperatures and densities that are inaccessible to laboratory experiments. Gravitational-wave interferometers are limited by quantum noise at these frequencies but can be tuned via their optical configuration to maximize the probability of postmerger signal detection. We compare two such tuning strategies to turn Advanced LIGO into a postmerger-focused instrument: first, a wideband tuning that enhances the instrument's signal-to-noise ratio 40-80% broadly above 1 kHz relative to the baseline, with a modest sensitivity penalty at lower frequencies; second, a "detuned"configuration that provides even more enhancement than the wideband tuning, but over only a narrow frequency band and at the expense of substantially worse quantum noise performance elsewhere. With an optimistic accounting for instrument loss and uncertainty in postmerger parameters, the detuned instrument has a 40% sensitivity improvement compared to the wideband instrument. 2022-04-06T18:39:06Z 2022-04-06T18:39:06Z 2021 2022-04-06T18:24:10Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/141727 Ganapathy, Dhruva, McCuller, Lee, Rollins, Jameson Graef, Hall, Evan D, Barsotti, Lisa et al. 2021. "Tuning Advanced LIGO to kilohertz signals from neutron-star collisions." Physical Review D, 103 (2). en 10.1103/PHYSREVD.103.022002 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. application/pdf American Physical Society (APS) APS |
| spellingShingle | Ganapathy, Dhruva McCuller, Lee Rollins, Jameson Graef Hall, Evan D Barsotti, Lisa Evans, Matthew Tuning Advanced LIGO to kilohertz signals from neutron-star collisions |
| title | Tuning Advanced LIGO to kilohertz signals from neutron-star collisions |
| title_full | Tuning Advanced LIGO to kilohertz signals from neutron-star collisions |
| title_fullStr | Tuning Advanced LIGO to kilohertz signals from neutron-star collisions |
| title_full_unstemmed | Tuning Advanced LIGO to kilohertz signals from neutron-star collisions |
| title_short | Tuning Advanced LIGO to kilohertz signals from neutron-star collisions |
| title_sort | tuning advanced ligo to kilohertz signals from neutron star collisions |
| url | https://hdl.handle.net/1721.1/141727 |
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