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| Paper: |
On the Nature of the Flares from Three Candidate Tidal Disruption Events |
| Volume: |
373, The Central Engine of Active Galactic Nuclei |
| Page: |
692 |
| Authors: |
Lu, Y.; Zheng, Z.; Zhang, S.N.; Huang, Y.F. |
| Abstract: |
The X-ray flares of NGC5905, RXJ1242.6–1119A, and RXJ1624.9+7554 observed by Chandra in 2001 and 2002 have been suggested as the candidate tidal disruption events. The distinct features observed from these events may be used to determine the type of a star tidally disrupted by a massive black hole. We investigate these three events, focusing on the differences for the tidal disruption of a giant and a main sequence star, resulting from their different relation between the mass and the radius. We argue that their X-ray flare properties could be modeled by the partial stripping of the outer layers of a solar type star. The tidal disruption of a giant star is excluded completely. This result may be useful for understanding the growth of a supermassive black hole by capturing stars, versus the growth mode through continuous mass accretion. |
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