Classification certificate for object 2018dyb
TNS Classification Report No. 2280 [ 2018TNSCR.998....1P ]

Date Received (UTC): 2018-07-17 20:44:16
Sender: UCSC Transient Team (UCSCTr_Bot1)
Group: None

Y.-C. Pan, R. J. Foley (UCSC), S. W. Jha (Rutgers), A. Rest (STScI), D. Scolnic (Chicago/KICP) report/s a classification of object: AT 2018dyb

Type: TDE
Redshift: 0.018

Remarks: TDE. Blue continuum with several spectral features. We identify some features as likely being He II 4686, H beta, He I 5876, and H alpha in emission. All lines have FWHM of ~12,000 km/s. Using a distance modulus of 34.4 mag to the host galaxy and correcting for MW extinction, the discovery magnitude corresponds to M = -18.5 mag, similar to other TDEs, but more luminous than most SNe II. From the confirmation image, the transient appears coincident with the nucleus of its host galaxy. ATel 11865

The following Classification spectrum was provided:

Obsdate: 2018-07-17 03:34:00
Instrument: Goodman
Telescope: Southern Astrophysical Research Telescope

Details of the object and its spectra can be viewed here: https://wis-tns.weizmann.ac.il/object/2018dyb