Spectroscopic Classifications of Optical Transients with the Lick Shane telescope

ATel #11284; G. Dimitriadis, Y.-C. Pan, C. Rojas-Bravo, R. J. Foley (UCSC)
on 10 Feb 2018; 09:08 UT
Credential Certification: Georgios Dimitriadis (gdimitri@ucsc.edu)

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We report the following classifications of optical transients from spectroscopic observations with the Kast spectrograph on the Shane telescope at Lick Observatory. Targets were supplied by ASAS-SN, ATLAS, PSST, and TNTS. All observations were obtained on 2018 Feb 07 UT and 2018 Feb 08 UT. Classifications were performed with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024).

 
Name        | IAU Name | RA (J2000)  | Dec (J2000)  |  z    | Type | Phase | Notes
 
ATLAS18lww  | AT2018nw | 01:57:20.44 | +40:36:08.96 | 0.01  |  II  |       | 
PS18gc      | AT2018ow | 02:51:04.41 | +09:06:44.32 | 0.01  |  IIb |       | (1) 
ASASSN-18bw | AT2018pj | 07:10:31.73 | +32:38:46.43 | 0.055 |  Ia  |  -4d  | (2) 
            | AT2018pm | 08:19:07.89 | +44:56:44.00 | 0.06  |  II  |       | 
PS18fy      | AT2018ot | 13:04:58.73 | +30:30:18.88 | 0.036 |  Ib  |       | 

Notes: When the redshift is given to 2 decimal places, it is derived from the SN spectrum. Otherwise, the redshift is determined from the host galaxy. (1) We measure an H alpha velocity of -12,400 km/s. (2) We measure an Si II 6355 velocity of -14,500 km/s.