SCAT classification of optical transients
ATel #12143; A. V. Payne, A. Do, M. A. Tucker, M. E. Huber, B. J. Shappee (IfA, UH Manoa)
on 24 Oct 2018; 22:52 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Michael Tucker (tuckerma95@gmail.com)
Subjects: Optical, Supernovae, Transient
The Spectral Classification of Astronomical Transients (SCAT) survey (ATel #11444) presents the classification of 5 optical transients. We report optical spectroscopy (330-970nm) taken with the University of Hawaii 88-inch (UH88) telescope using the SuperNova Integral Field Spectrograph (SNIFS). Transients were classified using the SuperNova IDentification code (SNID, Blondin & Tonry 2007, ApJ, 666, 1024). Redshifts given to 2 decimal places are derived using supernova lines, otherwise host galaxy lines are used or taken from NED if available.
Survey Name IAU Name Date Obs. Disc ATel. Type Phase Redshift Notes
ATLAS18wyv SN2018hlp 2018-10-21 --- Ia-norm -4(3) 0.065 (NED)
Gaia18cxi SN2018hdy 2018-10-21 --- IIP +11(3) 0.01 (SNID)
Gaia18cxz AT2018hex 2018-10-21 --- Stellar --- --- 1
PTSS-18jmj SN2018hlr 2018-10-22 --- Ia-91T -2(3) 0.04 (SNID) 2
Gaia18dcg SN2018hmk 2018-10-23 --- Ib-norm +15(5) 0.023 (NED)
1) Very red spectrum, with Halpha and Hbeta in emission at z=0, likely a Mdwarf flare.
2) Already classified by ATel #12141.
