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Additional Supernova Discoveries from the Pan-STARRS1 Medium Deep Survey

ATEL # 2398; R. Chornock, R. J. Foley, E. Berger, A. Rest, G. Narayan (Harvard/CfA), M. Huber (JHU), J. Tonry, P. A. Price (IfA/Hawaii), C. Stubbs (Harvard), A. Riess (JHU), W. M. Wood-Vasey (Pitt), S. J. Smartt (Queen's Univ. Belfast), R. P. Kirshner, D. J. Sand, A. M. Soderberg (Harvard/CfA), and the PS1 Builders.
on 23 Jan 2010; 11:38 UT
Password Certification: Ryan Chornock (

Subjects: Nova, Supernova, Transients

Further to ATel #2397, we report the discovery of an additional eight spectroscopically-confirmed supernovae in the Pan-STARRS Medium Deep Survey. Identifications were obtained using GMOS on the 8-m Gemini-North and Gemini-South telescopes (PI: Berger) and MagE on the 6.5-m Magellan Clay telescope (PI: Foley).

Pan-STARRS Designation RA(J2000) Dec(J2000) Discovery Date (UT) Peak Magnitude Type Redshift Age Spectrum Date (UT) Telescope
PS1-1000016 09:59:16.799 +01:36:48.54 Jan. 20 r=22.0 SN Ia 0.31 -6 days Jan. 21 Magellan
PS1-1000006 09:59:54.219 +02:24:42.83 Jan. 12 r=22.5 SN Ia 0.38 +7 days Jan. 19 Gemini-S
PS1-1000011 10:00:27.616 +02:41:38.52 Jan. 16 r=21.8 SN Ia 0.34 +0 days Jan. 20 Magellan
PS1-1000015 10:02:08.823 +02:43:06.79 Jan. 18 r=21.8 SN Ia 0.22 +0 days Jan. 20 Magellan
PS1-1000013 10:02:09.394 +01:53:56.98 Jan. 16 r=22.8 SN Ia 0.618 +0 days Jan. 20 Gemini-S
PS1-1000014 10:03:14.382 +03:08:39.22 Jan. 16 r=22.3 SN Ia 0.46 -6 days Jan. 21 Magellan
PS1-1000012 10:04:55.536 +02:35:27.33 Jan. 16 r=21.6 SN Ia 0.37 +0 days Jan. 20 Magellan
PS1-1000010 10:49:14.217 +58:28:02.09 Jan. 16 r=22.5 SN Ia 0.44 +1 day Jan. 19 Gemini-N

Redshifts reported with three significant figures were obtained from host galaxy spectra, while those with two significant digits were determined by cross-correlation with a library of supernova templates using the SNID code (Blondin & Tonry 2007, ApJ, 666, 1024). Ages relative to maximum light were also determined with SNID and generally have an uncertainty of 4 days for SNe Ia.

These discoveries were enabled using the PS1 System operated by the PS1 Science Consortium (PS1SC) and its member institutions. The PS1 Surveys have been made possible through the combination of the Institute for Astronomy at the University of Hawaii, The Pan-STARRS Project Office, the Max-Planck Society and its participating institutes, the Max Planck Institute for Astronomy, Heidelberg, and the Max Planck Institute for Extraterrestial Physics, Garching, The Johns Hopkins University, the University of Durham, the University of Edinburgh, the Queen's University of Belfast, the Harvard-Smithsonian Center for Astrophysics, the Las Cumbres Observatory Global Network, and the National Central University of Taiwan.

We thank the staffs at the PS1, Gemini-North, Gemini-South, and Magellan Clay telescopes for their assistance in obtaining these observations.

Pan-STARRS Acknowledgment and Builders List

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R. E. Rutledge , Editor
ATEL Mirror v1.0 Updates