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SALT spectroscopic classification of PS16fbb (= Gaia16bvg = SN 2016ick) as a type-Ia supernova at maximum light

ATel #9793; S. W. Jha, K. Dettman (Rutgers), Y.-C. Pan, R. J. Foley (UCSC), A. Rest (STScI), D. Scolnic (Chicago/KICP), M. Kotze (SALT/SAAO)
on 26 Nov 2016; 00:44 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Saurabh Jha (saurabh@physics.rutgers.edu)

Subjects: Optical, Supernovae

We obtained SALT (+RSS) spectroscopy of PS16fbb (= Gaia16bvg = SN 2016ick) on 2016 Nov 25.9 UT, covering the wavelength range 340-920 nm. Emission and absorption lines from the anonymous host galaxy give a redshift z = 0.0525. Cross-correlation of the supernova spectrum with a template library using SNID (Blondin & Tonry 2007, ApJ, 666, 1024) shows PS16fbb is a type-Ia supernova near maximum light. A good SNID match is obtained with SN 2005cf at -2 days. The expansion velocity for PS16fbb, measured to the trough of the Si II (rest 635.5 nm) line, is 10,200 km/s.

Our spectrum is posted on the Transient Name Server SN 2016ick page.

PS16fbb was discovered as part of the Pan-STARRS Survey for Transients (Huber et al. 2015, ATel #7153). Information on all PSST objects is available at http://star.pst.qub.ac.uk/ps1threepi/