Ultra-low-frequency Gravitational Waves from Massive Clusters at z ∼ 1
Recent progress with pulsar timing array experiments, especially from the NANOGrav collaboration, indicates that we are on the cusp of detecting significant signals from the inspiral of supermassive black hole (BH) binaries. While recent analysis has focused on nearby galaxies as possible sources of...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | The Astrophysical Journal |
| Subjects: | |
| Online Access: | https://doi.org/10.3847/1538-4357/acb64a |
| _version_ | 1797701448805384192 |
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| author | David K. Wendt Roger W. Romani |
| author_facet | David K. Wendt Roger W. Romani |
| author_sort | David K. Wendt |
| collection | DOAJ |
| description | Recent progress with pulsar timing array experiments, especially from the NANOGrav collaboration, indicates that we are on the cusp of detecting significant signals from the inspiral of supermassive black hole (BH) binaries. While recent analysis has focused on nearby galaxies as possible sources of the loudest signals, we show that mergers in identified clusters at z ∼ 1 can have larger strain amplitudes. We make an estimate comparing the nearby Two Micron All Sky Survey redshift survey (2MASS) galaxy sample with the more distant Massive and Distant Clusters of WISE Survey (MaDCoWs) cluster sample, showing that the latter might be expected to contribute more, and louder, gravitational-wave events. Thus, the first individual source detections may well be from ultramassive BHs in clusters at z ∼ 1, rather than nearby galaxies. |
| first_indexed | 2024-03-12T04:35:48Z |
| format | Article |
| id | doaj.art-34e81957efd74b4683fdd00032391a92 |
| institution | Directory Open Access Journal |
| issn | 1538-4357 |
| language | English |
| last_indexed | 2024-03-12T04:35:48Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj.art-34e81957efd74b4683fdd00032391a922023-09-03T09:55:21ZengIOP PublishingThe Astrophysical Journal1538-43572023-01-01944211210.3847/1538-4357/acb64aUltra-low-frequency Gravitational Waves from Massive Clusters at z ∼ 1David K. Wendt0https://orcid.org/0000-0003-4963-164XRoger W. Romani1https://orcid.org/0000-0001-6711-3286Department of Physics, Stanford University , Stanford, CA 94305, USA ; rwr@astro.stanford.eduDepartment of Physics, Stanford University , Stanford, CA 94305, USA ; rwr@astro.stanford.eduRecent progress with pulsar timing array experiments, especially from the NANOGrav collaboration, indicates that we are on the cusp of detecting significant signals from the inspiral of supermassive black hole (BH) binaries. While recent analysis has focused on nearby galaxies as possible sources of the loudest signals, we show that mergers in identified clusters at z ∼ 1 can have larger strain amplitudes. We make an estimate comparing the nearby Two Micron All Sky Survey redshift survey (2MASS) galaxy sample with the more distant Massive and Distant Clusters of WISE Survey (MaDCoWs) cluster sample, showing that the latter might be expected to contribute more, and louder, gravitational-wave events. Thus, the first individual source detections may well be from ultramassive BHs in clusters at z ∼ 1, rather than nearby galaxies.https://doi.org/10.3847/1538-4357/acb64aGravitational wave sourcesHigh-redshift galaxy clusters |
| spellingShingle | David K. Wendt Roger W. Romani Ultra-low-frequency Gravitational Waves from Massive Clusters at z ∼ 1 The Astrophysical Journal Gravitational wave sources High-redshift galaxy clusters |
| title | Ultra-low-frequency Gravitational Waves from Massive Clusters at z ∼ 1 |
| title_full | Ultra-low-frequency Gravitational Waves from Massive Clusters at z ∼ 1 |
| title_fullStr | Ultra-low-frequency Gravitational Waves from Massive Clusters at z ∼ 1 |
| title_full_unstemmed | Ultra-low-frequency Gravitational Waves from Massive Clusters at z ∼ 1 |
| title_short | Ultra-low-frequency Gravitational Waves from Massive Clusters at z ∼ 1 |
| title_sort | ultra low frequency gravitational waves from massive clusters at z ∼ 1 |
| topic | Gravitational wave sources High-redshift galaxy clusters |
| url | https://doi.org/10.3847/1538-4357/acb64a |
| work_keys_str_mv | AT davidkwendt ultralowfrequencygravitationalwavesfrommassiveclustersatz1 AT rogerwromani ultralowfrequencygravitationalwavesfrommassiveclustersatz1 |