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In this Letter, properties of black hole (BH) mass are well checked for theinteresting object SDSS J0159, a changing-look AGN and also a host galaxy of atidal disruption event (TDE). Through spectral absorption features, the stellarvelocity dispersion of SDSS J0159 can be well measured as $\sigma\sim81~{\rmkm/s}$, leading to SDSS J0159 being an apparent outlier in the \msig space,because of the BH mass estimated through the \msig relation about twomagnitudes lower than the reported virial BH mass of about $10^8~{\rmM_\odot}$. After considerations of contributions of stellar debris from thecentral TDE to broad line emission clouds, the over-estimated virial BH masscould be well explained in SDSS J0159. Therefore, over-estimated virial BHmasses through broad line properties in the \msig space could be treated asinteresting clues to support central TDEs.

SDSS J0159 as an outlier in the Mbh-sigma space: further clues to support a central tidal disruption event?