Spectroscopic Confirmation of PS1 MDS Supernova Discoveries
ATel #2719; P. Challis, R. J. Foley, R. Chornock (Harvard/CfA), M. Huber (JHU), A. Rest, G. Narayan, E. Berger, R. P. Kirshner, A. M. Soderberg, C. Stubbs (Harvard/CfA), J. Tonry (IfA), A. Riess (JHU), W. M. Wood-Vasey (Pitt), S. J. Smartt (QUB), P. A. Price, E. Magnier, K. Chambers, N. Kaiser, J. Morgan, W. Burgett, J. Heasley, W. Sweeney, C. Waters, and H. Flewelling (IfA)
on 2 Jul 2010; 23:57 UT
Credential Certification: Ryan Chornock (chornock@astro.berkeley.edu)
Subjects: Optical, Supernovae, Transient
We report the spectroscopic confirmation of 22 moderate-redshift supernova
candidates found in the Pan-STARRS1 Medium Deep Survey. All spectra (range
3440-8660 Angstroms) were obtained using the Blue Channel spectrograph on the
6.5-m MMT between 2010 June 16 and 18 UT. These observations are part of a large program for PS1 transients classification at the MMT.
Name RA (J2000) Dec Disc. Date(UT) AB Mag Type Redshift
PS1-1000269 16:14:28.709 +54:43:33.00 2010-05-31 r=22.5 Ia 0.233
PS1-1000271 16:08:52.649 +55:00:17.44 2010-06-01 i=22.4 Ia 0.43
PS1-1000272 14:07:14.931 +53:59:51.45 2010-06-01 i=22.4 Ia 0.53
PS1-1000273 12:17:50.298 +47:26:48.31 2010-05-10 r=21.1 Ia 0.279
PS1-1000274 14:09:19.942 +54:15:45.16 2010-06-03 r=22.9 Ia 0.270
PS1-1000275 12:16:41.567 +46:41:23.94 2010-06-06 r=22.8 Ia 0.241
PS1-1000276 14:17:18.587 +53:58:41.89 2010-06-06 r=22.3 Ia 0.387
PS1-1000277 12:21:46.463 +46:39:13.28 2010-06-16 i=22.6 Ia 0.459
PS1-1000279 14:13:01.869 +54:27:46.62 2010-05-13 r=21.9 Ia 0.373
PS1-1000280 16:08:18.404 +54:54:29.21 2010-05-31 r=22.2 Ia 0.336
PS1-1000282 16:17:47.710 +55:18:08.25 2010-06-06 r=21.6 Ia 0.36
PS1-1000283 16:13:48.216 +55:36:30.66 2010-06-06 r=21.5 Ia 0.36
PS1-1000285 16:11:19.406 +53:38:14.98 2010-06-06 r=22.1 IIb 0.14
PS1-1000286 16:06:48.803 +54:58:51.38 2010-06-06 r=23.1 Ia 0.55
PS1-1000289 16:18:53.806 +55:46:58.50 2010-06-06 r=22.0 Ia 0.347
PS1-1000290 16:05:44.829 +56:04:27.90 2010-06-06 r=22.1 Ia 0.331
PS1-1000291 16:18:15.870 +55:23:04.94 2010-06-06 r=21.9 Ia 0.323
PS1-1000292 14:11:57.763 +52:04:18.57 2010-06-15 r=22.3 Ia 0.45
PS1-1000293 16:01:15.408 +54:17:53.52 2010-06-15 r=21.8 Ia 0.42
PS1-1000295 12:21:59.468 +45:50:49.95 2010-06-15 r=22.5 Ia 0.379
PS1-1000296 12:14:06.501 +46:59:32.37 2010-06-15 r=22.3 Ia 0.35
PS1-1000298 14:14:03.337 +53:21:43.84 2010-06-15 r=22.3 Ia 0.441
Listed magnitudes are from the time of discovery. Identifications were performed by cross-correlating with a library of SN templates using the SNID (Blondin & Tonry 2007, ApJ, 666, 1024) code. Redshifts were determined from host galaxies where possible (3 significant figures) or from SNID (2 significant figures).
We thank the PS1 and MMT telescope staffs for their assistance with these
observations. These discoveries were enabled using the PS1 System operated by
the PS1 Science Consortium (PS1SC) and its member institutions, and made
possible through the PS1 Builders: http://www.ps1sc.org/PS1_System_ATel.shtml.
