Follow-up on the Supermassive Black Hole Binary Candidate J1048+7143: Successful Prediction of the Next Gamma-ray Flare and Refined Binary Parameters in the Framework of Jet Precession Model
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arXiv
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| Auteurs principaux: | , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2023
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| _version_ | 1866911773272047616 |
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| author | Kun, Emma Jaroschewski, Ilja Tjus, Julia Becker Britzen, Silke Frey, Sándor Gabányi, Krisztina Éva Cui, Lang Wang, Xin Shen, Yuling |
| author_facet | Kun, Emma Jaroschewski, Ilja Tjus, Julia Becker Britzen, Silke Frey, Sándor Gabányi, Krisztina Éva Cui, Lang Wang, Xin Shen, Yuling |
| contents | Analyzing single-dish and VLBI radio, as well as \textit{Fermi}-LAT $γ$-ray observations, we explained the three major flares in the $γ$-ray light curve of FSRQ J1048+7143 with the spin--orbit precession of the dominant mass black hole in a supermassive black hole binary system. Here, we report on the detection of a fourth $γ$-ray flare from J1048+7143, appearing in the time interval which was predicted in our previous work. Including this new flare, we constrained the mass ratio into a narrow range of $0.062<q<0.088$, and consequently we were able to further constrain the parameters of the hypothetical supermassive binary black hole at the heart of J1048+7143. We predict the occurrence of the fifth major $γ$-ray flare that would appear only if the jet will still lay close to our line sight. The fourth major $γ$-ray flare also shows the two-subflare structure, further strengthening our scenario in which the occurrence of the subflares is the signature of the precession of a spine--sheath jet structure that quasi-periodically interacts with a proton target, e.g. clouds in the broad-line region. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_03924 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Follow-up on the Supermassive Black Hole Binary Candidate J1048+7143: Successful Prediction of the Next Gamma-ray Flare and Refined Binary Parameters in the Framework of Jet Precession Model Kun, Emma Jaroschewski, Ilja Tjus, Julia Becker Britzen, Silke Frey, Sándor Gabányi, Krisztina Éva Cui, Lang Wang, Xin Shen, Yuling High Energy Astrophysical Phenomena General Relativity and Quantum Cosmology Analyzing single-dish and VLBI radio, as well as \textit{Fermi}-LAT $γ$-ray observations, we explained the three major flares in the $γ$-ray light curve of FSRQ J1048+7143 with the spin--orbit precession of the dominant mass black hole in a supermassive black hole binary system. Here, we report on the detection of a fourth $γ$-ray flare from J1048+7143, appearing in the time interval which was predicted in our previous work. Including this new flare, we constrained the mass ratio into a narrow range of $0.062<q<0.088$, and consequently we were able to further constrain the parameters of the hypothetical supermassive binary black hole at the heart of J1048+7143. We predict the occurrence of the fifth major $γ$-ray flare that would appear only if the jet will still lay close to our line sight. The fourth major $γ$-ray flare also shows the two-subflare structure, further strengthening our scenario in which the occurrence of the subflares is the signature of the precession of a spine--sheath jet structure that quasi-periodically interacts with a proton target, e.g. clouds in the broad-line region. |
| title | Follow-up on the Supermassive Black Hole Binary Candidate J1048+7143: Successful Prediction of the Next Gamma-ray Flare and Refined Binary Parameters in the Framework of Jet Precession Model |
| topic | High Energy Astrophysical Phenomena General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2311.03924 |