Tidal disruption event associated with the quasi-periodic eruptions from GSN 069: Possible disruption of a common envelope
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arXiv
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| _version_ | 1866910315662278656 |
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| author | Wang, Di |
| author_facet | Wang, Di |
| contents | X-ray quasi-periodic eruptions (QPEs) from the galactic nucleus have been found in several galaxies. Among them, GSN 069 is the only one with a tidal disruption event (TDE), which was recently found to have brightened again 9 years after the main outburst. However, the origin of this TDE is still unclear. This Letter explores a particular model for the TDE. By comparing the fallback time with observations, we found the TDE could not be caused by the disruption of the envelope of a single star in the tidal stripping model. Thus, we suggest that it is a disruption of a common envelope (CE). By calculating the fallback rate of such a model, we reproduced the second peak in the observed TDE light curve. If this model is correct, this TDE will be the closest observation to a direct observation of CE, which has never been directly observed. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_01737 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Tidal disruption event associated with the quasi-periodic eruptions from GSN 069: Possible disruption of a common envelope Wang, Di High Energy Astrophysical Phenomena Astrophysics of Galaxies Solar and Stellar Astrophysics X-ray quasi-periodic eruptions (QPEs) from the galactic nucleus have been found in several galaxies. Among them, GSN 069 is the only one with a tidal disruption event (TDE), which was recently found to have brightened again 9 years after the main outburst. However, the origin of this TDE is still unclear. This Letter explores a particular model for the TDE. By comparing the fallback time with observations, we found the TDE could not be caused by the disruption of the envelope of a single star in the tidal stripping model. Thus, we suggest that it is a disruption of a common envelope (CE). By calculating the fallback rate of such a model, we reproduced the second peak in the observed TDE light curve. If this model is correct, this TDE will be the closest observation to a direct observation of CE, which has never been directly observed. |
| title | Tidal disruption event associated with the quasi-periodic eruptions from GSN 069: Possible disruption of a common envelope |
| topic | High Energy Astrophysical Phenomena Astrophysics of Galaxies Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2312.01737 |