Double tidal disruption events in the changing-look AGN Mrk1018
Fuente:
arXiv
Saved in:
| Main Author: | |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866913949548544000 |
|---|---|
| author | XueGuang, Zhang |
| author_facet | XueGuang, Zhang |
| contents | Tidal disruption events (TDEs) as excellent beacons to black hole (BH) accreting systems have been studied for more than five decades with a single star tidally disrupted by a central massive BH. However, if considering two stars passing through a central BH and being tidally disrupted in a short period, so-called double TDEs could be expected and lead to unique variability features very different from features from standard TDEs. Here, we report such oversimplified double TDEs in the known changing-look AGN Mrk1018, of which 15years-long light curve with plateau features can be described by two main-sequence stars tidally disrupted by the central supermassive BH. Meanwhile, the BH mass determined by the double TDEs is consistent with the M-sigma relation determined value by the measured stellar velocity dispersions in Mrk1018. The results indicate tight connections between the TDEs and the changing-look properties in Mrk1018. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_14428 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Double tidal disruption events in the changing-look AGN Mrk1018 XueGuang, Zhang Astrophysics of Galaxies High Energy Astrophysical Phenomena Tidal disruption events (TDEs) as excellent beacons to black hole (BH) accreting systems have been studied for more than five decades with a single star tidally disrupted by a central massive BH. However, if considering two stars passing through a central BH and being tidally disrupted in a short period, so-called double TDEs could be expected and lead to unique variability features very different from features from standard TDEs. Here, we report such oversimplified double TDEs in the known changing-look AGN Mrk1018, of which 15years-long light curve with plateau features can be described by two main-sequence stars tidally disrupted by the central supermassive BH. Meanwhile, the BH mass determined by the double TDEs is consistent with the M-sigma relation determined value by the measured stellar velocity dispersions in Mrk1018. The results indicate tight connections between the TDEs and the changing-look properties in Mrk1018. |
| title | Double tidal disruption events in the changing-look AGN Mrk1018 |
| topic | Astrophysics of Galaxies High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2507.14428 |