Searching for electromagnetic emission in an AGN from the gravitational wave binary black hole merger candidate S230922g
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| Autores principales: | , , , , , , , , , , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866909455309864960 |
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| author | Cabrera, Tomás Palmese, Antonella Hu, Lei O'Connor, Brendan Ford, K. E. Saavik McKernan, Barry Andreoni, Igor Ahumada, Tomás Amsellem, Ariel Busmann, Malte Clark, Peter Coughlin, Michael W. Dadiani, Ekaterine Diaz, Veronica Graham, Matthew J. Gruen, Daniel Kunnumkai, Keerthi Postiglione, Jake Sommer, Julian S. Valdes, Francisco |
| author_facet | Cabrera, Tomás Palmese, Antonella Hu, Lei O'Connor, Brendan Ford, K. E. Saavik McKernan, Barry Andreoni, Igor Ahumada, Tomás Amsellem, Ariel Busmann, Malte Clark, Peter Coughlin, Michael W. Dadiani, Ekaterine Diaz, Veronica Graham, Matthew J. Gruen, Daniel Kunnumkai, Keerthi Postiglione, Jake Sommer, Julian S. Valdes, Francisco |
| contents | We carried out long-term monitoring of the LIGO/Virgo/KAGRA binary black hole (BBH) merger candidate S230922g in search of electromagnetic emission from the interaction of the merger remnant with an embedding active galactic nuclei (AGN) accretion disk. Using a dataset primarily composed of wide-field imaging from the Dark Energy Camera (DECam) and supplemented by additional photometric and spectroscopic resources, we searched ~ 70% of the sky area probability for transient phenomena, and discovered 6 counterpart candidates. One especially promising candidate - AT 2023aagj - exhibited temporally varying asymmetric components in spectral broad line regions, a feature potentially indicative of an off-center event such as a BBH merger. This represents the first live search and multiwavelength, photometric, and spectroscopic monitoring of a GW BBH optical counterpart candidate in the disk of an AGN. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_10698 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Searching for electromagnetic emission in an AGN from the gravitational wave binary black hole merger candidate S230922g Cabrera, Tomás Palmese, Antonella Hu, Lei O'Connor, Brendan Ford, K. E. Saavik McKernan, Barry Andreoni, Igor Ahumada, Tomás Amsellem, Ariel Busmann, Malte Clark, Peter Coughlin, Michael W. Dadiani, Ekaterine Diaz, Veronica Graham, Matthew J. Gruen, Daniel Kunnumkai, Keerthi Postiglione, Jake Sommer, Julian S. Valdes, Francisco High Energy Astrophysical Phenomena Astrophysics of Galaxies We carried out long-term monitoring of the LIGO/Virgo/KAGRA binary black hole (BBH) merger candidate S230922g in search of electromagnetic emission from the interaction of the merger remnant with an embedding active galactic nuclei (AGN) accretion disk. Using a dataset primarily composed of wide-field imaging from the Dark Energy Camera (DECam) and supplemented by additional photometric and spectroscopic resources, we searched ~ 70% of the sky area probability for transient phenomena, and discovered 6 counterpart candidates. One especially promising candidate - AT 2023aagj - exhibited temporally varying asymmetric components in spectral broad line regions, a feature potentially indicative of an off-center event such as a BBH merger. This represents the first live search and multiwavelength, photometric, and spectroscopic monitoring of a GW BBH optical counterpart candidate in the disk of an AGN. |
| title | Searching for electromagnetic emission in an AGN from the gravitational wave binary black hole merger candidate S230922g |
| topic | High Energy Astrophysical Phenomena Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2407.10698 |