Discovery of SNF20060616-022, a Type IIn Supernova
ATel #842; 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, S. J. Ferrell, D. Kocevski, S. Loken, P. Nugent, J. Parrent, 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 22 Jun 2006; 03:14 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 supernova SNF20060616-022 (coordinates RA 21:49:57.67 DEC +32:01:58.7 J2000.0) in images obtained June 16.5 UT at an approximate magnitude of 19.5 (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 spectrum (range 320-1000 nm) of this object, obtained June 20.6 UT with the Supernova Integral Field Spectrograph on the University of Hawaii 2.2-meter telescope, reveals that SNF20060616-022 is a Type IIn supernova, at an approximate redshift of z = 0.12 as measured from the peak of its prominent, narrow H-alpha emission feature. The H-alpha feature appears asymmetric, extending to 6,000 km/s to the blue and 2,000 km/s to the red (rest frame, measured at continuum). A weak, broad emission from He I 587.6 nm is also discernible.
