Spectroscopic classification of two PS1 transients

ATel #5330; D. Wright, J. Polshaw, K. Smith, S. J. Smartt, R. Kotak (Queen's University Belfast), S. Valenti (LCOGT/UCSB), F. Bresolin, R. Kudritzki, J. Tonry, E. Magnier, M. Huber, K. Chambers, N. Kaiser, J. Morgan, W. Burgett, J. Heasley, W. Sweeney, C. Waters, H. Flewelling (University of Hawaii), C. Stubbs (Harvard), P. A. Price (Princeton)
on 27 Aug 2013; 15:01 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Cosimo Inserra (c.inserra@qub.ac.uk)

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Further to Valenti et al. (ATels #2668, #3351) we report the discovery and spectroscopic confirmation of two supernovae in the Pan-STARRS1 3Pi Faint Galaxy Supernova Survey.

PS1-13cpv (21:26:03.89 -06:37:09.0) was discovered on 02 Aug 2013 at g=19.697 (in PS1 system ; see Tonry et al. 2012, ApJ, 745, 42), offset by 0.12" from the galaxy SDSS J212603.90-063708.9 (g=23.42). A spectrum obtained on 25 Aug 2013 at the William Herschel Telescope with ISIS (range 350-950nm) and fitted using the "Supernova Identification" code (SNID; Blondin and Tonry 2007, ApJ, 666, 1024), shows it to be a normal type Ia supernova over 1-2 months after maximum brightness at z~0.12.

PS1-13cpw (22:37:13.40 +06:13:22.3) was discovered on 07 Aug 2013 at r=19.909 (in PS1 system ; see Tonry et al. 2012, ApJ, 745, 42), offset by 0.48" from the galaxy SDSS J223713.43+061322.6 (g=21.73). A spectrum obtained on 25 Aug 2013 at the William Herschel Telescope with ISIS (range 350-950nm) and fitted using the "Supernova Identification" code (SNID; Blondin and Tonry 2007, ApJ, 666, 1024), shows it to be a normal type Ia supernova 1-2 weeks after maximum brightness at z~0.15.

This discovery was enabled using the PS1 System operated by the PS1 Science Consortium (PS1SC) and its member institutions, http://ps1sc.org/PS1_System_ATel.shtml. We would like to thank the PS1 telescope operators for their support of PS1 observations.