The Reliability of the Low-latency Estimation of Binary Neutron Star Chirp Mass
© 2019. The American Astronomical Society. All rights reserved.. The LIGO and Virgo Collaborations currently conduct searches for gravitational waves from compact binary coalescences in real time. For promising candidate events, a sky map and distance estimation are released in low latency to facili...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
American Astronomical Society
2021
|
| Online Access: | https://hdl.handle.net/1721.1/132598 |
| _version_ | 1811085131087085568 |
|---|---|
| author | Biscoveanu, Sylvia Vitale, Salvatore Haster, Carl-Johan |
| author_facet | Biscoveanu, Sylvia Vitale, Salvatore Haster, Carl-Johan |
| author_sort | Biscoveanu, Sylvia |
| collection | MIT |
| description | © 2019. The American Astronomical Society. All rights reserved.. The LIGO and Virgo Collaborations currently conduct searches for gravitational waves from compact binary coalescences in real time. For promising candidate events, a sky map and distance estimation are released in low latency to facilitate their electromagnetic follow-up. Currently, no information is released about the masses of the compact objects. Recently, Margalit & Metzger suggested that knowledge of the chirp mass of the detected binary neutron stars could be useful to prioritize the electromagnetic follow-up effort, and urged the LIGO-Virgo collaboration to release chirp mass information in low latency. One might worry that low-latency searches for compact binaries make simplifying assumptions that could introduce biases in the mass parameters: neutron stars are treated as point particles with dimensionless spins below 0.05 perfectly aligned with the orbital angular momentum. Furthermore, the template bank used to search for them has a finite resolution. In this paper we show that none of these limitations can introduce chirp mass biases larger than ∼10-3 M o. Even the total mass is usually accurately estimated, with biases smaller than 6%. The mass ratio and effective inspiral spins, on the other hand, can suffer from more severe biases. |
| first_indexed | 2024-09-23T13:03:23Z |
| format | Article |
| id | mit-1721.1/132598 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T13:03:23Z |
| publishDate | 2021 |
| publisher | American Astronomical Society |
| record_format | dspace |
| spelling | mit-1721.1/1325982021-09-21T03:32:00Z The Reliability of the Low-latency Estimation of Binary Neutron Star Chirp Mass Biscoveanu, Sylvia Vitale, Salvatore Haster, Carl-Johan © 2019. The American Astronomical Society. All rights reserved.. The LIGO and Virgo Collaborations currently conduct searches for gravitational waves from compact binary coalescences in real time. For promising candidate events, a sky map and distance estimation are released in low latency to facilitate their electromagnetic follow-up. Currently, no information is released about the masses of the compact objects. Recently, Margalit & Metzger suggested that knowledge of the chirp mass of the detected binary neutron stars could be useful to prioritize the electromagnetic follow-up effort, and urged the LIGO-Virgo collaboration to release chirp mass information in low latency. One might worry that low-latency searches for compact binaries make simplifying assumptions that could introduce biases in the mass parameters: neutron stars are treated as point particles with dimensionless spins below 0.05 perfectly aligned with the orbital angular momentum. Furthermore, the template bank used to search for them has a finite resolution. In this paper we show that none of these limitations can introduce chirp mass biases larger than ∼10-3 M o. Even the total mass is usually accurately estimated, with biases smaller than 6%. The mass ratio and effective inspiral spins, on the other hand, can suffer from more severe biases. 2021-09-20T18:23:16Z 2021-09-20T18:23:16Z 2020-11-10T16:41:53Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/132598 en 10.3847/2041-8213/AB479E Astrophysical Journal Letters 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 Astronomical Society The American Astronomical Society |
| spellingShingle | Biscoveanu, Sylvia Vitale, Salvatore Haster, Carl-Johan The Reliability of the Low-latency Estimation of Binary Neutron Star Chirp Mass |
| title | The Reliability of the Low-latency Estimation of Binary Neutron Star Chirp Mass |
| title_full | The Reliability of the Low-latency Estimation of Binary Neutron Star Chirp Mass |
| title_fullStr | The Reliability of the Low-latency Estimation of Binary Neutron Star Chirp Mass |
| title_full_unstemmed | The Reliability of the Low-latency Estimation of Binary Neutron Star Chirp Mass |
| title_short | The Reliability of the Low-latency Estimation of Binary Neutron Star Chirp Mass |
| title_sort | reliability of the low latency estimation of binary neutron star chirp mass |
| url | https://hdl.handle.net/1721.1/132598 |
| work_keys_str_mv | AT biscoveanusylvia thereliabilityofthelowlatencyestimationofbinaryneutronstarchirpmass AT vitalesalvatore thereliabilityofthelowlatencyestimationofbinaryneutronstarchirpmass AT hastercarljohan thereliabilityofthelowlatencyestimationofbinaryneutronstarchirpmass AT biscoveanusylvia reliabilityofthelowlatencyestimationofbinaryneutronstarchirpmass AT vitalesalvatore reliabilityofthelowlatencyestimationofbinaryneutronstarchirpmass AT hastercarljohan reliabilityofthelowlatencyestimationofbinaryneutronstarchirpmass |