Hints of Spin-Orbit Resonances in the Binary Black Hole Population
Binary black hole spin measurements from gravitational wave observations can reveal the binary's evolutionary history. In particular, the spin orientations of the component black holes within the orbital plane, ϕ_{1} and ϕ_{2}, can be used to identify binaries caught in the so-called spin-orbit...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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American Physical Society (APS)
2022
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| Online Access: | https://hdl.handle.net/1721.1/142299 |
| _version_ | 1811089620161527808 |
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| author | Varma, Vijay Biscoveanu, Sylvia Isi, Maximiliano Farr, Will M Vitale, Salvatore |
| author2 | LIGO (Observatory : Massachusetts Institute of Technology) |
| author_facet | LIGO (Observatory : Massachusetts Institute of Technology) Varma, Vijay Biscoveanu, Sylvia Isi, Maximiliano Farr, Will M Vitale, Salvatore |
| author_sort | Varma, Vijay |
| collection | MIT |
| description | Binary black hole spin measurements from gravitational wave observations can reveal the binary's evolutionary history. In particular, the spin orientations of the component black holes within the orbital plane, ϕ_{1} and ϕ_{2}, can be used to identify binaries caught in the so-called spin-orbit resonances. In a companion paper, we demonstrate that ϕ_{1} and ϕ_{2} are best measured near the merger of the two black holes. In this work, we use these spin measurements to provide the first constraints on the full six-dimensional spin distribution of merging binary black holes. In particular, we find that there is a preference for Δϕ=ϕ_{1}-ϕ_{2}∼±π in the population, which can be a signature of spin-orbit resonances. We also find a preference for ϕ_{1}∼-π/4 with respect to the line of separation near merger, which has not been predicted for any astrophysical formation channel. However, the strength of these preferences depends on our prior choices, and we are unable to constrain the widths of the ϕ_{1} and Δϕ distributions. Therefore, more observations are necessary to confirm the features we find. Finally, we derive constraints on the distribution of recoil kicks in the population and use this to estimate the fraction of merger remnants retained by globular and nuclear star clusters. We make our spin and kick population constraints publicly available. |
| first_indexed | 2024-09-23T14:22:05Z |
| format | Article |
| id | mit-1721.1/142299 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T14:22:05Z |
| publishDate | 2022 |
| publisher | American Physical Society (APS) |
| record_format | dspace |
| spelling | mit-1721.1/1422992023-02-10T20:20:19Z Hints of Spin-Orbit Resonances in the Binary Black Hole Population Varma, Vijay Biscoveanu, Sylvia Isi, Maximiliano Farr, Will M Vitale, Salvatore LIGO (Observatory : Massachusetts Institute of Technology) Massachusetts Institute of Technology. Department of Physics MIT Kavli Institute for Astrophysics and Space Research Binary black hole spin measurements from gravitational wave observations can reveal the binary's evolutionary history. In particular, the spin orientations of the component black holes within the orbital plane, ϕ_{1} and ϕ_{2}, can be used to identify binaries caught in the so-called spin-orbit resonances. In a companion paper, we demonstrate that ϕ_{1} and ϕ_{2} are best measured near the merger of the two black holes. In this work, we use these spin measurements to provide the first constraints on the full six-dimensional spin distribution of merging binary black holes. In particular, we find that there is a preference for Δϕ=ϕ_{1}-ϕ_{2}∼±π in the population, which can be a signature of spin-orbit resonances. We also find a preference for ϕ_{1}∼-π/4 with respect to the line of separation near merger, which has not been predicted for any astrophysical formation channel. However, the strength of these preferences depends on our prior choices, and we are unable to constrain the widths of the ϕ_{1} and Δϕ distributions. Therefore, more observations are necessary to confirm the features we find. Finally, we derive constraints on the distribution of recoil kicks in the population and use this to estimate the fraction of merger remnants retained by globular and nuclear star clusters. We make our spin and kick population constraints publicly available. 2022-05-04T12:58:07Z 2022-05-04T12:58:07Z 2022-01-21 2022-05-04T12:56:09Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/142299 Varma, Vijay, Biscoveanu, Sylvia, Isi, Maximiliano, Farr, Will M and Vitale, Salvatore. 2022. "Hints of Spin-Orbit Resonances in the Binary Black Hole Population." Physical Review Letters, 128 (3). en 10.1103/physrevlett.128.031101 Physical Review Letters Creative Commons Attribution 4.0 International License https://creativecommons.org/licenses/by/4.0 application/pdf American Physical Society (APS) APS |
| spellingShingle | Varma, Vijay Biscoveanu, Sylvia Isi, Maximiliano Farr, Will M Vitale, Salvatore Hints of Spin-Orbit Resonances in the Binary Black Hole Population |
| title | Hints of Spin-Orbit Resonances in the Binary Black Hole Population |
| title_full | Hints of Spin-Orbit Resonances in the Binary Black Hole Population |
| title_fullStr | Hints of Spin-Orbit Resonances in the Binary Black Hole Population |
| title_full_unstemmed | Hints of Spin-Orbit Resonances in the Binary Black Hole Population |
| title_short | Hints of Spin-Orbit Resonances in the Binary Black Hole Population |
| title_sort | hints of spin orbit resonances in the binary black hole population |
| url | https://hdl.handle.net/1721.1/142299 |
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