9 Supernova Discoveries

ATel #1241; The Nearby Supernova Factory: 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), C. Buton, Y. Copin, E. Gangler, G. Smadja, C. Tao (Institut de Physique Nucleaire 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 16 Oct 2007; 19:26 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 9 supernovae in images obtained Sep 26 through Oct 12 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            
  
SNF20070926-004  04:58:37.75   01:08:19.2  Sep 26.5   19.3      Oct 02.6   IIn   0.09                          
  
SNF20070926-016  03:49:09.51  -00:44:09.3  Sep 26.3   19.6      Oct 02.6   II    0.03                          
  
SNF20070927-110  08:04:59.72   25:27:15.3  Sep 27.5   19.8      Sep 30.6   II    0.04                          
  
SNF20070930-008  23:26:25.63   23:35:43.9  Sep 30.4   19.1      Oct 02.3   Ia    0.09      1 week after max    
  
SNF20071001-012  02:35:52.92   26:14:06.7  Oct 01.5   19.3      Oct 05.5   Ia    0.05      2 weeks after max   
  
SNF20071002-003  01:35:54.09  -04:57:07.0  Oct 02.4   19.2      Oct 05.5   IIn   0.06                          
  
SNF20071003-000  00:02:49.99  -22:32:06.1  Oct 03.2   19.4      Oct 05.3   Ia    0.10      around max          
  
SNF20071003-001  00:12:28.49  -23:54:44.5  Oct 03.2   18.3      Oct 07.5   Ia    0.06      few days after max  
  
SNF20071012-004  01:35:18.38   26:53:07.5  Oct 12.3   19.0      Oct 15.5   Ia    0.07      around max          
  

Special Notice This is the last routine ATEL posting of SNe discovered by the Nearby Supernova Factory. We have now set up a website that will contain coordinates, discovery dates and magnitudes, dates of initial spectroscopy, redshifts, types, any other useful comments, and WCS-compliant FITS finding charts. To learn more about this program please visit http://snfactory.lbl.gov/snf/open_access.