21 Supernova Discoveries

ATel #1124; The Nearby Supernova Factory: P. Antilogus, J. Li, R. Pain, R. Pereira, C. Wu (Laboratoire de Physique Nucleaire et de Haute Energies de Paris); C. Buton, Y. Copin, E. Gangler, G. Smadja (Institut de Physique Nucleaire de Lyon); G. Aldering, C. Aragon, S. Bailey, S. Bongard, M. Childress, S. Loken, P. Nugent, S. Perlmutter, K. Runge, R. C. Thomas, B. A. Weaver (Lawrence Berkeley National Laboratory, Berkeley, CA); E. Pecontal, G. Rigaudier (Centre de Recherche Astronomique de Lyon); R. Kessler (Kavli Institute for Cosmological Physics, Chicago, IL); C. Baltay, A. Bauer, N. Ellman, D. Herrera, D. Rabinowitz, R. Scalzo (Yale University, New Haven, CT)
on 30 Jun 2007; 00:12 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: R. C. Thomas (rcthomas@lbl.gov)

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The Nearby Supernova Factory reports the discovery of 21 supernovae in images obtained between May 04 and June 26 of 2007 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-A2.0 catalog for discovery dates before June 1, and with the USNO-B1.0 catalog afterward. The following table summarizes the supernovae discovered (dates are UTC).

  
SNF20070504-012  13:21:54.91   23:02:26.8   May 04.4     18.8     May 05.4  Ia    0.10      1-2 weeks before max
  
SNF20070504-017  14:00:51.02   22:57:28.4   May 04.4     19.0     May 05.5  Ia    0.10      1-2 weeks before max
  
SNF20070509-001  12:51:12.75  -09:01:45.2   May 09.2     19.6     May 10.4  Ia    0.12      1 week before max   
  
SNF20070513-002  21:45:16.26   11:02:48.6   May 13.5     17.9     May 18.6  Ia    0.03      3 weeks past max    
  
SNF20070524-000  21:49:32.58   19:01:44.4   May 24.5     20.3     May 25.5  Ia    0.16      around max          
  
SNF20070528-000  14:47:47.34   16:49:53.1   May 28.3     19.4     May 30.4  Ia    0.03      around max          
  
SNF20070530-000  14:02:16.90   13:06:02.9   May 30.2     18.8     Jun 01.3  II    0.01                          
  
SNF20070530-003  13:09:50.34   20:44:42.0   May 30.2     19.3     Jun 01.3  Ia    0.10      1 week before max   
  
SNF20070531-002  14:10:11.29   08:18:39.8   May 31.2     20.1     Jun 02.3  Ia    0.10      few days past max   
  
SNF20070531-009  22:14:52.16   06:43:53.7   May 31.4     19.0     Jun 01.5  Ia    0.07      3 weeks past max    
  
SNF20070604-000  15:23:04.86   08:46:55.7   Jun 04.3     18.7     Jun 12.4  Ia    0.08      1 week past max     
  
SNF20070604-003  23:43:55.11   27:06:24.3   Jun 04.4     17.9     Jun 10.5  II    0.03                          
  
SNF20070605-005  15:59:41.93   02:17:04.2   Jun 05.3     18.2     Jun 12.4  II    0.03                          
  
SNF20070605-008  16:18:43.84   03:02:50.1   Jun 05.3     19.6     Jun 12.4  Ia    0.12      around max          
  
SNF20070605-009  17:28:46.33   22:10:40.3   Jun 05.4     19.0     Jun 10.5  Ia    0.10      few days before max 
  
SNF20070608-005  16:54:38.51   16:02:59.7   Jun 08.2     19.4     Jun 10.5  Ia    0.12      around max          
  
SNF20070613-004  23:48:05.93   28:14:20.2   Jun 13.4     18.9     Jun 19.5  Ibc   0.03                          
  
SNF20070617-002  16:10:41.68   15:17:38.5   Jun 17.2     20.1     Jun 19.3  II    0.07                          
  
SNF20070626-002  01:09:24.24   19:55:51.4   Jun 26.4     19.2     Jun 27.6  II    0.04                          
  
SNF20070626-004  00:36:19.65   06:03:40.4   Jun 26.5     19.8     Jun 27.5  II    0.04                          
  
SNF20070626-009  14:27:46.37   06:35:36.2   Jun 26.2     18.7     Jun 27.3  II    0.03