Radio emission of tidal disruption events from wind-cloud interaction
arXiv:2303.10817 · doi:10.1093/mnras/stad804
Abstract
Winds can be launched in tidal disruption event (TDE). It has been proposed that the winds can interact with the cloud surrounding the black hole, produce bow shocks, accelerate electrons, and produce radio emission. We restudy the wind-cloud interaction model. We employ the properties of winds found by the radiation hydrodynamic simulations of super-Eddington circularized accretion flow in TDEs. We can calculate the peak radio emission frequency, the luminosity at the peak frequency, and their time-evolution based on the TDEs wind-cloud interaction model. We find that the model predicted peak radio emission frequency, the luminosity at peak frequency, and their time evolution can be well consistent with those in TDEs AT2019dsg and ASASSN-14li. This indicates that in these two radio TDEs, the wind-cloud interaction mechanism may be responsible for the radio emission.
11 pages, 10 figures, accepted to MNRAS
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Cited by in corpus (5)
- Interaction of an outflow with surrounding gaseous clouds as the origin of the late-time radio flares in TDEs
- Light-Curve Structure and Halpha Line Formation in the Tidal Disruption Event AT 2019azh
- Demographics of Tidal Disruption Events with L-Galaxies: I. Volumetric TDE rates and the abundance of Nuclear Star Clusters
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- Numerical Studies on the Radio Afterglows in TDE: Forward Shock