Normalised spectrum of TIC 350343297 showing asymmetric absorption lines. The FeIIλ4520.2 and FeIIλ4541.5 lines are indicated by vertical red lines as a reference. Spectrum obtained by the FEROS spectrograph (Kaufer et al. 1997, 1999) at the MPG/ESO 2.2-m telescope located at the La Silla Observatory in Chile, on 24 March 2012 with a spectral resolution of 48 000 and a signal-to-noise ratio of 104. The spectrum is not corrected by redshift.