Analysis Of Physical Parameters Of Tide Tear Event Candidates

A star that passes near a massive black hole (BH) is disrupted by tidal forces when it is within the disruption radius. An UV/optical or X-ray flare will be emitted when the bound matter of the stellar debris falls back onto the black hole at the periastron point and is accreted. The tidal disruption of a star has been successfully used to verify supermassive BHs in dormant galaxies. In the standard theory the light curve of TDEs should be decreasing as t-5/3, however, it is found that the light curve should be scaled as t5/3at the early time after disruption in the simulations. In this work, we fitted the light curves in X-ray and UV/optical band of12tidal disruption events. The result proves that most of the light curves deviate from the power law of t-5/3.We have calculated physical parameters of10disruption events, such as penetration factorμ, the mass of the disrupted star M, and the black holes’ MBH, we find the obvious relations between these parameters through statistic analysis. With the increase of the sample in the future, we expect to confirm these relationships between those parameters which we have described above.