Optical spectrum of the TDE AT2018hco
T. M. Reynolds (Univ. of Turku),  I. Arcavi (Tel Aviv Univ.), M. B. Stone, P. Nurmi, S. Mattila (Univ. of Turku), M. Hanski (Luostarivuori Lyseo Upper Secondary School), M. Taskula, K. Rasanen, R. Meller, V. Vepsalainen (Kerava Upper Secondary School and Upper Secondary School for Adults)
We obtained an optical spectrum of the TDE AT2018hco (ATel #12263, TNS Report No. 23352) with the Nordic Optical Telescope (+ALFOSC; range 320-910 nm, 1.6nm resolution) on 2018-12-05.0. The spectrum shows a strong blue continuum and broad emission lines of Halpha and HeI (5876A) as described in ATel #12263, as well as a weak emission line we identify as HeII (4685A). This provides additional evidence to support the classification of AT2018hco as a TDE. The spectrum can be obtained from the IAU Transient Name Server.
optical,tidal disruption event,transient