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PSN J13344316+0920194 in IC 900 is a young type II supernovae

ATel #7819; N. Morrell, C. Contreras, M. Phillips (LCO), G. Bock (Boss), and M. Stritzinger, C. Gall (Aarhus University), on behalf of the Carnegie Supernova Project
on 20 Jul 2015; 20:04 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Eric Hsiao (hsiao@lco.cl)

Subjects: Optical, Supernovae

We report the spectroscopic observation (range 370-920 nm) of PSN J13344316+0920194 obtained on 20.0 UT with the Las Campanas 2.5-m du Pont telescope (+ WFCCD). The visual-wavelength spectrum suggests that this transient is a young type II supernova soon after explosion. The spectrum is dominated by a blue, almost featureless continuum, with a weak bump consistent with H-alpha. The spectrum also exhibits prevalent interstellar absorption features of Na I (E.W. 0.37-nm) and Ca II H&K (E.W. 0.19-nm and 0.17-nm, respectively), as well as narrow emission lines associated with a nearby H II region. The emission lines provide a redshift consistent with the value reported in NED for IC 900 (7069 km/s, Kent et al. 2008, AJ, 136, 713).