Spectroscopic Classifications of Optical Transients with the Shane 3-m Telescope

ATel #12299; J. S. Brown, T. Hung, R. J. Foley (UCSC)
on 15 Dec 2018; 18:06 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Jonathan Brown (brown@astronomy.ohio-state.edu)

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We report the following classifications of optical transients from spectroscopic observations with the Kast spectrograph on the Shane 3-m telescope. All observations were made on 2018 Dec 14 UT. Classifications were performed with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024).

  
Name         | IAU Name  | RA (J2000)  | Dec (J2000)  |   z   | Type | Phase  | Notes
  
ZTF18acrcizr | AT2018jfh | 01:23:18.94 | +22:11:50.63 | 0.045 |  Ia  |  +10 d   | (1)    
GWAC 181211A | AT2018jsm | 01:48:23.36 | -00:48:06.48 |   --  |  CV  |    --    | (2)   

(1) SNID finds a best fit to the Type Ia SN 1989B ~10 days after peak at a redshift z~0.045. However, the spectrum is heavily contaminated by the host galaxy. We identify absorption features consistent with Ca H&K at z = 0.05.

(2) Strong blue continuum with Balmer series absorption and He II 4686 and H-alpha in emission, consistent with a CV outburst.