Supernova Discoveries: Type IIn SNF20060209-002 and Type Ia SNF20060209-003
ATel #736; The Nearby Supernova Factory: N. Blanc, Y. Copin, E. Gangler, G. Smadja (Institut de Physique Nucleaire de Lyon), P. Antilogus, S. Gilles, R. Pain, R. Pereira (Laboratoire de Physique Nucleaire et de Haute Energies de Paris), G. Aldering, S. Bailey, S. Bongard, D. Kocevski, B. C. Lee, S. Loken, P. Nugent, S. Perlmutter, 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, D. Rabinowitz, A. Bauer (Yale)
on 15 Feb 2006; 23:07 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 and classification of two supernovae. Both were discovered 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 component of the Palomar Consortium. Spectra (range 320-1000 nm) of these objects were obtained using the Supernova Integral Field Spectrograph (SNIFS) on the University of Hawaii 2.2-meter telescope for classification purposes.
SNF20060209-002 (coordinates RA 12:00:17.12 DEC +28:36:22.0 J2000.0) was discovered in QUEST II images obtained February 9.4 UT at an approximate magnitude of 17.9 (calibrated to R). A SNIFS spectrum obtained February 15.5 UT reveals it to be a Type IIn supernova at an approximate redshift of z = 0.035, measured from the peak of the H-alpha emission. The continuum is extremely blue, and other Balmer lines are visible.
SNF20060209-003 (coordinates RA 13:46:13.71 DEC -09:07:50.6 J2000.0) was discovered in QUEST II images from February 9.6 UT at an approximate magnitude of 18.6 (calibrated to R). A SNIFS spectrum taken February 15.6 indicates that this is a spectroscopically normal Type Ia supernova about one week past maximum light at an approximate redshift of z = 0.05 as measured by comparison to a library of supernova spectra.
