Spectroscopic Classification of PSN J12060299+4729335 as A Low-Luminosity Type II-P Supernova
ATel #6192; Jujia Zhang (Yunnan Observatories); Xiaofeng Wang (Tsinghua University)
on 1 Jun 2014; 01:45 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Xiaofeng Wang (wang_xf@mail.tsinghua.edu.cn)
Subjects: Optical, Supernovae, Transient
An optical spectrogram (range 370-890 nm), obtained on 2014 May 31.66 UT with the 2.4-m telescope (+YFOSC) at LiJiang Gaomeigu Station of Yunnan Observatories (YNAO), shows that PSN J12060299+4729335 is a low-luminosity type IIP supernova at about 2 weeks after the maximum light. The continuum of the spectrum is very red and likely due to that the supernova suffers significant host-galaxy reddening. Cross-correlation with a library of supernova spectra using the "Supernova Identification" code (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024) shows that it matches with SN 2005cs at t = +13 days. Adopting a redshift of 0.00188 for the host galaxy NGC 4096 from the narrow emission line, they measure an H-alpha P-Cygni absorption minimum velocity of about 6200 km/s.
