SCAT Classifications of 5 Supernovae with the UH88/SNIFS
ATel #11444; Michael A. Tucker, Mark Huber, Benjamin J. Shappee (IfA, Hawai'i), Subo Dong, S. Bose, Ping Chen (KIAA-PKU)
on 20 Mar 2018; 05:56 UT
Credential Certification: Benjamin Shappee (shappee@hawaii.edu)
Subjects: Optical, Supernovae
Referred to by ATel #: 11711, 11919, 11948, 11972, 12143, 12290, 12391, 12472, 12559, 12636, 12939, 14313, 15280, 15281, 15329, 16140
We present the first classifications from the newly formed Spectral Classification of Astronomical Transients (SCAT) survey. SCAT is a transient identification survey utilizing the SuperNova Integral Field Spectrograph (SNIFS) on the University of Hawaii (UH) 88-inch telescope.
We report optical spectroscopy (range 330-970 nm) of four supernovae discovered by the Asteroid Terrestrial-impact Last Alert System (ATLAS, Tonry et al. 2011, PASP, 123, 58) and one supernova discovered by the All-Sky Automated Survey for Supernovae (ASAS-SN; Shappee et al. 2014, ApJ, 788, 48). We performed a cross-correlation with a library of supernovae spectra using the "Supernova Identification" code (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024). The details of the classifications are as follows:
Name IAU name Disc. ATel Spec. Type Phase Redshift
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ATLAS-18mlt AT 2018ahi Ia -0.8 (4.2) 0.09 (0.005; SNID)
ATLAS-18mlp AT 2018ahj Ia -3.4 (4.7) 0.082 (0.005; SNID)
ATLAS-18mlo AT 2018ahg Ia -1.2 (4.1) 0.131 (0.005; SNID)
ASASSN-18du AT 2018yi ATel #11368 Ia 17 (28 ) 0.055 (host)
AT 2018ahe '' IIP 3 (27 ) 0.016 (host)
