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4 Supernova Discoveries

ATEL # 1214; The Nearby Supernova Factory: 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), 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); and D. Birchall (Institute for Astronomy, University of Hawaii, Hilo, HI); and J. Cough, J. Holtzman (New Mexico State University, Las Cruces, NM)
on 12 Sep 2007; 18:27 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 Aug 31 through Sep 10 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           
SNF20070831-009 22:26:11.78 -12:08:09.7 Aug 31.3 19.2 Sep 07.4 Ia 0.07 few weeks past max
SNF20070909-023 01:08:13.68 18:44:27.0 Sep 09.5 19.4 Sep 10.5 Ia 0.06 1 week past max
SNF20070910-005 01:04:47.69 04:31:16.7 Sep 10.3 19.8 Sep 12.5 Ia 0.10 around max
SNF20070910-007 01:35:08.82 36:01:04.8 Sep 10.4 19.7 Sep 12.5 Ia 0.09 around max

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