Constraining Stellar-mass Black Hole Mergers in AGN Disks Detectable with LIGO
Black hole (BH) mergers detectable with the Laser Interferometer Gravitational-wave Observatory (LIGO) can occur in active galactic nucleus (AGN) disks. Here we parameterize the merger rates, the mass spectrum, and the spin spectrum of BHs in AGN disks. The predicted merger rate spans ~10−3–104 Gpc−...
| मुख्य लेखकों: | , , , , , , , , , , , |
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| स्वरूप: | Journal article |
| भाषा: | English |
| प्रकाशित: |
American Astronomical Society
2018
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| _version_ | 1826292272901128192 |
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| author | McKernan, B Ford, KES Bellovary, J Leigh, NWC Haiman, Z Kocsis, B Lyra, W Mac Low, M-M Metzger, B O'Dowd, M Endlich, S Rosen, DJ |
| author_facet | McKernan, B Ford, KES Bellovary, J Leigh, NWC Haiman, Z Kocsis, B Lyra, W Mac Low, M-M Metzger, B O'Dowd, M Endlich, S Rosen, DJ |
| author_sort | McKernan, B |
| collection | OXFORD |
| description | Black hole (BH) mergers detectable with the Laser Interferometer Gravitational-wave Observatory (LIGO) can occur in active galactic nucleus (AGN) disks. Here we parameterize the merger rates, the mass spectrum, and the spin spectrum of BHs in AGN disks. The predicted merger rate spans ~10−3–104 Gpc−1 yr−1, so upper limits from LIGO (<212 Gpc−1 yr−1) already constrain it. The predicted mass spectrum has the form of a broken power law, consisting of a pre-existing BH power-law mass spectrum and a harder power-law mass spectrum resulting from mergers. The predicted spin spectrum is multipeaked with the evolution of retrograde spin BHs in the gas disk playing a key role. We outline the large uncertainties in each of these LIGO observables for this channel and we discuss ways in which they can be constrained in the future.
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| first_indexed | 2024-03-07T03:12:08Z |
| format | Journal article |
| id | oxford-uuid:b48bee2e-ab02-4ec3-b3a2-3bbaf0e2b9b6 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T03:12:08Z |
| publishDate | 2018 |
| publisher | American Astronomical Society |
| record_format | dspace |
| spelling | oxford-uuid:b48bee2e-ab02-4ec3-b3a2-3bbaf0e2b9b62022-03-27T04:27:00ZConstraining Stellar-mass Black Hole Mergers in AGN Disks Detectable with LIGOJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:b48bee2e-ab02-4ec3-b3a2-3bbaf0e2b9b6EnglishSymplectic ElementsAmerican Astronomical Society2018McKernan, BFord, KESBellovary, JLeigh, NWCHaiman, ZKocsis, BLyra, WMac Low, M-MMetzger, BO'Dowd, MEndlich, SRosen, DJBlack hole (BH) mergers detectable with the Laser Interferometer Gravitational-wave Observatory (LIGO) can occur in active galactic nucleus (AGN) disks. Here we parameterize the merger rates, the mass spectrum, and the spin spectrum of BHs in AGN disks. The predicted merger rate spans ~10−3–104 Gpc−1 yr−1, so upper limits from LIGO (<212 Gpc−1 yr−1) already constrain it. The predicted mass spectrum has the form of a broken power law, consisting of a pre-existing BH power-law mass spectrum and a harder power-law mass spectrum resulting from mergers. The predicted spin spectrum is multipeaked with the evolution of retrograde spin BHs in the gas disk playing a key role. We outline the large uncertainties in each of these LIGO observables for this channel and we discuss ways in which they can be constrained in the future. |
| spellingShingle | McKernan, B Ford, KES Bellovary, J Leigh, NWC Haiman, Z Kocsis, B Lyra, W Mac Low, M-M Metzger, B O'Dowd, M Endlich, S Rosen, DJ Constraining Stellar-mass Black Hole Mergers in AGN Disks Detectable with LIGO |
| title | Constraining Stellar-mass Black Hole Mergers in AGN Disks Detectable with LIGO |
| title_full | Constraining Stellar-mass Black Hole Mergers in AGN Disks Detectable with LIGO |
| title_fullStr | Constraining Stellar-mass Black Hole Mergers in AGN Disks Detectable with LIGO |
| title_full_unstemmed | Constraining Stellar-mass Black Hole Mergers in AGN Disks Detectable with LIGO |
| title_short | Constraining Stellar-mass Black Hole Mergers in AGN Disks Detectable with LIGO |
| title_sort | constraining stellar mass black hole mergers in agn disks detectable with ligo |
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