Supernova Discoveries: Type IIn SNF20060601-002 and Type II SNF20060601-008
ATel #826; The Nearby Supernova Factory: P. Antilogus, S. Gilles, R. Pain, R. Pereira (Laboratoire de Physique Nucleaire et de Haute Energies de Paris), 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), 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 6 Jun 2006; 00:38 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 two supernovae in images obtained using the QUEST II camera in drift-scan mode on the Palomar Oschin 48-inch telescope as a part of the Palomar-QUEST survey. Spectra (range 320-1000 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.
SNF20060601-002 (coordinates RA 14:47:47.83 DEC +23:17:58.6 J2000.0) was discovered in a QUEST image from June 01.2 UT at an approximate magnitude of 19.1 (calibrated to R). A SNIFS spectrum obtained June 05.4 UT reveals that it is a Type IIn supernova at a redshift of z = 0.10 as measured from the peak of its narrow, prominent H-alpha emission. Balmer emissions H-beta through H-delta are also detected, as is He I 5876 in weak emission.
SNF20060601-008 (coordinates RA 15:03:01.01 DEC +21:41:40.6 J2000.0) was discovered in a QUEST image from June 01.2 UT at an approximate magnitude of 19.4 (calibrated to R). A SNIFS spectrum of this target obtained June 05.4 UT reveals it to be a Type II supernova at an approximate redshift of z = 0.065, similar to SN 1993J two to three weeks after explosion.