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4 Supernova Discoveries

ATEL # 1208; The Nearby Supernova Factory: G. Rigaudier, E. Pecontal (Centre de Recherche Astronomique de Lyon), C. Buton, Y. Copin, E. Gangler, G. Smadja, C. Tao (Institut de Physique Nucleaire de Lyon), P. Antilogus, S. Bailey, R. Pain, R. Pereira, C. Wu (Laboratoire de Physique Nucleaire et de Haute Energies de Paris), G. Aldering, C. Aragon, S. Bongard, M. Childress, S. Loken, P. Nugent, S. Perlmutter, K. Runge, R. C. Thomas, B. A. Weaver (Lawrence Berkeley National Laboratory, Berkeley, CA), C. Baltay, A. Bauer, D. Rabinowitz, R. Scalzo (Yale University, New Haven, CT); and D. Birchall (Institute for Astronomy, University of Hawaii, Hilo, HI); and J. Cough, J. Holtzman (New Mexico State University, Las Cruces, NM)
on 6 Sep 2007; 2:52 UT
Distributed as an Instant Email Notice (Supernova)
Password Certification: R. C. Thomas (

Subjects: Infra-Red, Optical, Ultra-Violet, Nova, Supernova

The Nearby Supernova Factory reports the discovery of 4 supernovae in images obtained Sep 01 through Sep 02 UTC using the QUEST-II camera on the Palomar Oschin 48-inch telescope, operated by the Palomar-QUEST Consortium. Spectra (range 320-1000 nm) obtained with the SuperNova Integral Field Spectrograph on the University of Hawaii 2.2-meter telescope were used to classify each. R-band discovery magnitudes and J2000.0 coordinates are derived from comparison with the USNO-B1.0 catalog. The following table summarizes the discovered supernovae (dates are UTC).

   Target Name          RA          Decl      Disc Date  Disc Mag  Spec Date  Type  Redshift  Comments            
SNF20070901-015 04:12:07.14 -07:35:13.2 Sep 01.5 18.6 Sep 05.6 II 0.03 Aug 20 nondetection
SNF20070901-016 00:10:06.68 -16:16:24.3 Sep 01.3 19.7 Sep 05.5 Ia 0.09 1 week after max
SNF20070902-005 00:34:33.81 -01:13:03.1 Sep 02.3 19.2 Sep 05.5 Ia 0.07 1-2 weeks after max
SNF20070902-011 17:11:40.31 36:30:03.7 Sep 02.2 19.4 Sep 05.3 II 0.07 Aug 09 nondetection

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R. E. Rutledge , Editor
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