MDM Spectroscopy of PS1 Transients
ATel #7411; Ryan Chornock (Ohio University)
on 17 Apr 2015; 21:27 UT
Credential Certification: Ryan Chornock (chornock@ohio.edu)
Subjects: Optical, Cataclysmic Variable, Supernovae, Transient
I report spectroscopic observations of several recent transients from the Pan-STARRS Survey for Transients (see Huber et al., ATel #7153; http://star.pst.qub.ac.uk/ps1threepi/ ). All spectra were obtained using the MarkIII spectrograph on the 2.4 m Hiltner telescope at MDM Observatory, with a spectral range of approximately 3950--8500 Angs. Classifications were assisted by the SuperNova IDentification code of Blondin & Tonry (SNID; 2007, ApJ, 666, 1024). Redshifts are from narrow galactic emission lines.
Name | RA (J2000) | Dec (J2000) | Spec. Date (UT) | Redshift | Type | Phase | Notes
PS15zh | 17:48:47.72 | +24:11:18.5 | 20150416 | 0.0208 | IIP | several weeks after max | (1)
PS15zq | 11:35:18.43 | +19:03:00.2 | 20150416 | 0.0210 | IIb | before max | (2)
PS15aaf | 06:14:43.29 | +57:16:42.8 | 20150417 | 0 | CV | -- | (3)
PS15adf | 10:24:38.80 | -02:59:07.7 | 20150417 | 0.031 | Ia | near max | (4)
(1) Best SNID match with SN 2004dj at +20 days
(2) Best SNID match with SN 2008ax before maximum light
(3) Blue continuum with H-alpha and H-beta emission near zero redshift
(4) Also named ASASSN-15hc (Kiyota et al., ATel #7398; classified by Falco et al., ATel #7405); Best SNID match with SN 1995D at t=+4 days.