Classification of SNe 2006aq, 2006ar, and SNF20060224-026
ATel #759; 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 8 Mar 2006; 06:13 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 that spectra (range 320-1000 nm) of supernovae 2006aq (in MCG +07-24-32, CBET 419) and 2006ar (in MCG +11-13-36, CBET 420), obtained March 07.6 and 07.5 UT (respectively) with the Supernova Integral Field Spectrograph on the University of Hawaii 2.2-meter telescope, show that SN 2006aq is of Type II and SN 2006ar is of Type Ia. The spectrum of SN 2006aq is similar to that of the Type IIb SN 1993J at an approximate redshift of z = 0.05. The SN appears to have faded rapidly relative to the reported discovery magnitude. SN 2006ar is before or near maximum, with a continuum somewhat redder than normally observed in Type Ia supernovae at this phase.
The Nearby Supernova Factory also reports the discovery of supernova SNF20060224-026 (coordinates RA 13:51:24.88 DEC -11:15:26.8 J2000.0) in images obtained February 24.5 UT at an approximate magnitude of 19.9 (calibrated to R) 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-QUEST Consortium. A SNIFS spectrum obtained March 07.7 UT reveals that this supernova is of Type Ia, similar to SN 1990N about three weeks past maximum light, at a redshift of z = 0.1.
