Type II Supernovae SNF20060719-035 and SN 2006du

ATel #863; The Nearby Supernova Factory: N. Blanc, Y. Copin, E. Gangler, G. Smadja (Institut de Physique Nucleaire de Lyon), G. Aldering, C. Aragon, S. Bailey, S. Bongard, M. J. Childress, D. Kocevski, S. Loken, P. Nugent, S. Perlmutter, K. Runge, R. Scalzo, R. C. Thomas, L. Wang, B. A. Weaver (Lawrence Berkeley National Laboratory, Berkeley, CA), P. Antilogus, S. Gilles, R. Pain, R. Pereira (Laboratoire de Physique Nucleaire et de Haute Energies de Paris), E. Pecontal, G. Rigaudier (Centre de Recherche Astronomique de Lyon), R. Kessler (Kavli Institute for Cosmological Physics, Chicago, IL), C. Baltay, A. Bauer, D. Herrera, D. Rabinowitz (Yale)
on 24 Jul 2006; 21:52 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 two supernovae in images obtained using the QUEST II camera on the Palomar Oschin 48-inch telescope as a part of the JPL Near-Earth Asteroid Tracking (NEAT) component of the Palomar-QUEST Consortium. Spectra (range 510-1000 nm) of these targets, obtained with the Supernova Integral Field Spectrograph (SNIFS) on the University of Hawaii 2.2-meter telescope were used for classification.

SNF20060719-035 (coordinates RA 21:10:34.49 DEC -21:34:42.7 J2000.0) was discovered in a NEAT image from July 19.34 UT at an approximate magnitude of 19.2 (calibrated to R). A SNIFS spectrum obtained July 23.45 UT reveals that it is a Type II supernova at an approximate redshift of z = 0.035 as measured from the peak of the observed H-alpha feature (in net emission). A weak P Cygni He I 587.6 is also detected.

SN 2006du (IAUC # 8733 ) in IC 1529 (z = 0.022556, HIPASS Final Catalog 2006, via NED) was discovered independently by us in a NEAT image from July 20.48 UT at an approximate magnitude of 17.16 (calibrated to R). A SNIFS spectrum obtained July 23.60 UT reveals that it is also of Type II with both H-alpha and He I 587.6 P Cygni profiles.