Scope Out Multiband Gravitational-Wave Observations of GW190521-Like Binary Black Holes with Space Gravitational Wave Antenna B-DECIGO
The gravitational wave event, GW190521, is the most massive binary black hole merger observed by ground-based gravitational wave observatories LIGO/Virgo to date. While the observed gravitational wave signal is mainly in the merger and ringdown phases, the inspiral gravitational wave signal of the G...
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MDPI AG
2021-03-01
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| Series: | Universe |
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| Online Access: | https://www.mdpi.com/2218-1997/7/3/53 |
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| author | Hiroyuki Nakano Ryuichi Fujita Soichiro Isoyama Norichika Sago |
| author_facet | Hiroyuki Nakano Ryuichi Fujita Soichiro Isoyama Norichika Sago |
| author_sort | Hiroyuki Nakano |
| collection | DOAJ |
| description | The gravitational wave event, GW190521, is the most massive binary black hole merger observed by ground-based gravitational wave observatories LIGO/Virgo to date. While the observed gravitational wave signal is mainly in the merger and ringdown phases, the inspiral gravitational wave signal of the GW190521-like binary will be more visible to space-based detectors in the low-frequency band. In addition, the ringdown gravitational wave signal will be louder in the next generation (3G) of ground-based detectors in the high-frequency band, displaying the great potential of multiband gravitational wave observations. In this paper, we explore the scientific potential of multiband observations of GW190521-like binaries with a milli-Hz gravitational wave observatory: LISA; a deci-Hz observatory: B-DECIGO; and (next generation of) hecto-Hz observatories: aLIGO and ET. In the case of quasicircular evolution, the triple-band observations of LISA, B-DECIGO, and ET will provide parameter estimation errors of the masses and spin amplitudes of component black holes at the level of order of 1–10%. This would allow consistency tests of general relativity in the strong field at an unparalleled precision, particularly with the “B-DECIGO + ET” observation. In the case of eccentric evolution, the multiband signal-to-noise ratio found in “B-DECIGO + ET” observation would be larger than 100 for a five-year observation prior to coalescence, even with high final eccentricities. |
| first_indexed | 2024-03-09T05:49:05Z |
| format | Article |
| id | doaj.art-5c15dd97451f45c99d81e923e0ad0163 |
| institution | Directory Open Access Journal |
| issn | 2218-1997 |
| language | English |
| last_indexed | 2024-03-09T05:49:05Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Universe |
| spelling | doaj.art-5c15dd97451f45c99d81e923e0ad01632023-12-03T12:18:18ZengMDPI AGUniverse2218-19972021-03-01735310.3390/universe7030053Scope Out Multiband Gravitational-Wave Observations of GW190521-Like Binary Black Holes with Space Gravitational Wave Antenna B-DECIGOHiroyuki Nakano0Ryuichi Fujita1Soichiro Isoyama2Norichika Sago3Faculty of Law, Ryukoku University, Kyoto 612-8577, JapanInstitute of Liberal Arts, Otemon Gakuin University, Osaka567-8502, JapanSchool of Mathematics, University of Southampton, Southampton SO17 1BJ, UKDepartment of Physics, Kyoto University, Kyoto 606-8502, JapanThe gravitational wave event, GW190521, is the most massive binary black hole merger observed by ground-based gravitational wave observatories LIGO/Virgo to date. While the observed gravitational wave signal is mainly in the merger and ringdown phases, the inspiral gravitational wave signal of the GW190521-like binary will be more visible to space-based detectors in the low-frequency band. In addition, the ringdown gravitational wave signal will be louder in the next generation (3G) of ground-based detectors in the high-frequency band, displaying the great potential of multiband gravitational wave observations. In this paper, we explore the scientific potential of multiband observations of GW190521-like binaries with a milli-Hz gravitational wave observatory: LISA; a deci-Hz observatory: B-DECIGO; and (next generation of) hecto-Hz observatories: aLIGO and ET. In the case of quasicircular evolution, the triple-band observations of LISA, B-DECIGO, and ET will provide parameter estimation errors of the masses and spin amplitudes of component black holes at the level of order of 1–10%. This would allow consistency tests of general relativity in the strong field at an unparalleled precision, particularly with the “B-DECIGO + ET” observation. In the case of eccentric evolution, the multiband signal-to-noise ratio found in “B-DECIGO + ET” observation would be larger than 100 for a five-year observation prior to coalescence, even with high final eccentricities.https://www.mdpi.com/2218-1997/7/3/53gravitational wavesbinary black holesquasinormal modesgeneral relativity |
| spellingShingle | Hiroyuki Nakano Ryuichi Fujita Soichiro Isoyama Norichika Sago Scope Out Multiband Gravitational-Wave Observations of GW190521-Like Binary Black Holes with Space Gravitational Wave Antenna B-DECIGO Universe gravitational waves binary black holes quasinormal modes general relativity |
| title | Scope Out Multiband Gravitational-Wave Observations of GW190521-Like Binary Black Holes with Space Gravitational Wave Antenna B-DECIGO |
| title_full | Scope Out Multiband Gravitational-Wave Observations of GW190521-Like Binary Black Holes with Space Gravitational Wave Antenna B-DECIGO |
| title_fullStr | Scope Out Multiband Gravitational-Wave Observations of GW190521-Like Binary Black Holes with Space Gravitational Wave Antenna B-DECIGO |
| title_full_unstemmed | Scope Out Multiband Gravitational-Wave Observations of GW190521-Like Binary Black Holes with Space Gravitational Wave Antenna B-DECIGO |
| title_short | Scope Out Multiband Gravitational-Wave Observations of GW190521-Like Binary Black Holes with Space Gravitational Wave Antenna B-DECIGO |
| title_sort | scope out multiband gravitational wave observations of gw190521 like binary black holes with space gravitational wave antenna b decigo |
| topic | gravitational waves binary black holes quasinormal modes general relativity |
| url | https://www.mdpi.com/2218-1997/7/3/53 |
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