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Discovery of Three New Supernova by the Palomar Transient Factory

ATel #2657; Peter Nugent (Lawrence Berkeley National Laboratory), Mark Sullivan (University of Oxford) & D. Andrew Howell (LCOGT/UCSB)
on 3 Jun 2010; 01:25 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Peter Nugent (penugent@lbl.gov)

Subjects: Optical, Ultra-Violet, Supernovae

The Type Ia supernova science working group of the Palomar Transient Factory (ATEL#1964) reports the discovery of three nearby supernova. Confirmation spectra were taken on the Keck I 10-m telescope (+LRIS) on May 15 UT of PTF10hdv and on the Double Beam Spectrograph at the Palomar Hale telescope on May 21 UT by I. Arcavi, S. Ben-Ami, A. Sternberg, A. Gal-Yam and D. Xu (Weizmann Institute of Science). A spectrum of PTF10icb was taken by D.A. Howell on Gemini North on June 2 UT. Classification of the spectra were carried out using Superfit (Howell et al. 2005). As all three were quite young, STIS/UV spectroscopic observations on the Hubble Space Telescope were triggered by the ToO program "Verifying the Utility of Type Ia Supernovae as Cosmological Probes: Evolution and Dispersion in the Ultraviolet Spectra " (PI: R. Ellis). We strongly encourage additional follow-up of these sources at all wavelengths.

Name          RA           Dec          z     phase     disc     mag (R-band)    
PTF10hdv  12:07:45.39  +41:29:27.8    0.05     -15    May 14.3      19.6    
PTF10hmv  12:11:33.28  +47:16:29.6    0.03     -16    May 20.4      19.5    
PTF10icb  12:54:49.22  +58:52:54.8    0.01     -15    May 30.3      17.4