Modeling the flare in NGC 1097 from 1991 to 2004 as a tidal disruption event
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arXiv
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| Format: | Preprint |
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2022
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| _version_ | 1866914668281331712 |
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| author | Zhang, XueGuang |
| author_facet | Zhang, XueGuang |
| contents | In the Letter, interesting evidence is reported to support a central tidal disruption event (TDE) in the known AGN NGC 1097. Considering the motivations of TDE as one probable origination of emission materials of double-peaked broad emission lines and also as one probable explanation to changing-look AGN, it is interesting to check whether are there clues to support a TDE in NGC 1097, not only a changing-look AGN but also an AGN with double-peaked broad emission lines. Under the assumption that the onset of broad H$α$ emission was due to a TDE, the 13years-long (1991-2004) variability of double-peaked broad H$α$ line flux in NGC 1097 can be well predicted by theoretical TDE model, with a $(1-1.5){\rm M_\odot}$ main-sequence star tidally disrupted by the central BH with TDE model determined mass about $(5-8)\times10^7{\rm M_\odot}$. The results provide interesting evidence to not only support TDE-related origin of double-peaked broad line emission materials but also support TDE as an accepted physical explanation to physical properties of changing-look AGN. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2209_09037 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Modeling the flare in NGC 1097 from 1991 to 2004 as a tidal disruption event Zhang, XueGuang Astrophysics of Galaxies High Energy Astrophysical Phenomena In the Letter, interesting evidence is reported to support a central tidal disruption event (TDE) in the known AGN NGC 1097. Considering the motivations of TDE as one probable origination of emission materials of double-peaked broad emission lines and also as one probable explanation to changing-look AGN, it is interesting to check whether are there clues to support a TDE in NGC 1097, not only a changing-look AGN but also an AGN with double-peaked broad emission lines. Under the assumption that the onset of broad H$α$ emission was due to a TDE, the 13years-long (1991-2004) variability of double-peaked broad H$α$ line flux in NGC 1097 can be well predicted by theoretical TDE model, with a $(1-1.5){\rm M_\odot}$ main-sequence star tidally disrupted by the central BH with TDE model determined mass about $(5-8)\times10^7{\rm M_\odot}$. The results provide interesting evidence to not only support TDE-related origin of double-peaked broad line emission materials but also support TDE as an accepted physical explanation to physical properties of changing-look AGN. |
| title | Modeling the flare in NGC 1097 from 1991 to 2004 as a tidal disruption event |
| topic | Astrophysics of Galaxies High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2209.09037 |