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6 Supernova Discoveries

ATel #1203; The Nearby Supernova Factory: 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), G. Rigaudier, E. Pecontal (Centre de Recherche Astronomique de Lyon); and D. Birchall (Institute for Astronomy, University of Hawaii, Hilo, HI); and J. Cough, J. Holtzman (New Mexico State University, Las Cruces, NM)
on 3 Sep 2007; 05:09 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: R. C. Thomas (rcthomas@lbl.gov)

Subjects: Infra-Red, Optical, Ultra-Violet, Supernovae

The Nearby Supernova Factory reports the discovery of 6 supernovae in images obtained Aug 31 through Sep 01 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          
SNF20070831-017 21:02:46.85 -04:05:25.2 Aug 31.2 18.6 Sep 02.4 Ibc 0.03 around max
SNF20070831-018 20:57:55.47 -07:23:24.1 Aug 31.2 18.3 Sep 02.3 II 0.02
SNF20070831-022 20:47:57.16 -05:24:25.9 Aug 31.2 18.4 Sep 02.3 Ia 0.04 3 weeks past max
SNF20070831-025 21:22:50.97 -21:08:42.5 Aug 31.2 19.5 Sep 02.3 Ia 0.07 1 month past max
SNF20070831-027 20:50:07.76 -01:58:36.4 Aug 31.2 19.5 Sep 02.4 Ibc 0.06
SNF20070901-005 00:38:01.48 -14:57:48.3 Sep 01.3 19.5 Sep 02.5 Ia 0.11 few days past max