Table A.1.
Free parameters used for modelling the X-ray TDE light curve.
| Parameter | Description | Prior |
|---|---|---|
| log LPeak | Peak X-ray luminosity | [42,46] erg s−1 |
| log t0 | Power-law normalisation | [-4,0.5] years |
| tPeak, X | Time of peak | [0,108] |
Notes. The time of peak tPeak, X is expressed with respect to the date of the optical alert (November 15th, 2019) – its upper limit of 108 days corresponds to the first Swift/XRT detection, in which the source already behaved like a TDE (March 1st, 2020). For the prior of the peak luminosity, the softness of the X-ray emission allows to rule out a jetted TDE (e.g. Pasham 2023), which would be necessary to reach observed luminosities above 1046 erg s−1.
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