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| Format: | Preprint |
| Publié: |
2024
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| Accès en ligne: | https://arxiv.org/abs/2407.20616 |
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| _version_ | 1866910546202198016 |
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| author | XueGuang, Zhang |
| author_facet | XueGuang, Zhang |
| contents | In this manuscript, strong clues are reported to support the normal broad line AGN SDSS J1617+0638 as the host galaxy harboring a central tidal disruption event (TDE). Through the optical flare in the CSS 8.5years-long light curve and the none-variability in the up-to-date ASAS-SN light curves, the theoretical TDE model described by the MOSFIT code can be applied in SDSS J1617+0638. Meanwhile, considering the assumed central TDE expected continuum emissions not strong enough to describe the continuum emissions in the SDSS spectrum of SDSS J1617+0638, an additional power law component from pre-existing AGN activity should be necessary in SDSS J1617+0638. Furthermore, considering the short time duration to the observed date for the SDSS spectrum from the starting time of the assumed central TDE in SDSS J1617+0638, TDE model expected accreting mass only about 0.03$M_\odot$ can lead to few effects of TDEs debris on the observed broad emission lines in the SDSS spectrum of SDSS J1617+0638, indicating the TDE model determined BH mass simply consistent with the virial BH mass by broad emission lines, as determined results in SDSS J1617+0638. Therefore, through both the photometric variability and the spectroscopic results, a central TDE can be preferred in the normal broad line AGN SDSS J1617+0638 with pre-existing central AGN activity and pre-existing broad emission line regions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_20616 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | A normal broad line AGN SDSS J1617+0638 as the host galaxy of a central tidal disruption event XueGuang, Zhang Astrophysics of Galaxies In this manuscript, strong clues are reported to support the normal broad line AGN SDSS J1617+0638 as the host galaxy harboring a central tidal disruption event (TDE). Through the optical flare in the CSS 8.5years-long light curve and the none-variability in the up-to-date ASAS-SN light curves, the theoretical TDE model described by the MOSFIT code can be applied in SDSS J1617+0638. Meanwhile, considering the assumed central TDE expected continuum emissions not strong enough to describe the continuum emissions in the SDSS spectrum of SDSS J1617+0638, an additional power law component from pre-existing AGN activity should be necessary in SDSS J1617+0638. Furthermore, considering the short time duration to the observed date for the SDSS spectrum from the starting time of the assumed central TDE in SDSS J1617+0638, TDE model expected accreting mass only about 0.03$M_\odot$ can lead to few effects of TDEs debris on the observed broad emission lines in the SDSS spectrum of SDSS J1617+0638, indicating the TDE model determined BH mass simply consistent with the virial BH mass by broad emission lines, as determined results in SDSS J1617+0638. Therefore, through both the photometric variability and the spectroscopic results, a central TDE can be preferred in the normal broad line AGN SDSS J1617+0638 with pre-existing central AGN activity and pre-existing broad emission line regions. |
| title | A normal broad line AGN SDSS J1617+0638 as the host galaxy of a central tidal disruption event |
| topic | Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2407.20616 |