Pan-STARRS1 Medium Deep Survey Discovery of a SN Ia at z=0.048
ATel #4951; S. Valenti, M. L. Graham, D. A. Howell (LCOGT/UCSB) D. Sand (Texas Tech), J. T. Parrent (LCOGT/Dartmouth College), S. J. Smartt, R. Kotak, D. Wright, M. Fraser, T.-W. Chen, M. McCrum, K. Smith (Queen's University Belfast), 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 5 Apr 2013; 00:21 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Stefano Valenti (svalenti@lcogt.net)
Subjects: Optical, Supernovae
We report the discovery of a spectroscopically-confirmed Supernova in the Pan-STARRS 1 (designated PS1-13aai). The object was first detected on 2013 March 19.42 UT at the coordinates RA = 12:21:14.20 Dec= +47:29:51.6 (J2000) with an approximate brightness of zP1=19.36 mag (AB) and rose to zP1=17.81 mag by 2013 April 01.5.
A spectrum (range 350-1000 nm) obtained robotically on Apr. 03.34 UT with the FLOYDS spectrograph at "Faulkes Telescope North" at Haleakala, shows it to be a SN type Ia around maximum at a redshift of 0.048. Comparisons with a library of supernova spectra using the "GELATO" code (Harutyunyan et al. 2008, A.Ap. 488, 383) yields the best match with SN 2003du (Stanishev et al. 2007, A&A 469,645).
This discovery was made possible by the PS1 system operated by the PS1 Science Consortium and its member institutions (http://www.ps1sc.org/PS1_System_ATel.shtml ). We thank the telescope operators of the PS1 telescope for their support.
