Early-Time Spitzer Observations of the Type II Plateau Supernova SN 2004dj

August 2005 • 2005ApJ...628L.123K

Authors • Kotak, Rubina • Meikle, Peter • van Dyk, Schuyler D. • Höflich, Peter A. • Mattila, Seppo

Abstract • We present mid-infrared observations with the Spitzer Space Telescope of the nearby Type II-P supernova SN 2004dj at epochs of 89-129 days. We have obtained the first mid-IR spectra of any supernova apart from SN 1987A. A prominent [Ni II] 6.64 μm line is observed, from which we deduce that the mass of stable nickel must be at least 2.2×10^-4 M_solar. We also observe the red wing of the CO fundamental band. We relate our findings to possible progenitors and favor an evolved star, most likely a red supergiant, with a probable initial mass between ~10 and 15 M_solar.

Links

• PREPRINT http://arxiv.org/abs/astro-ph/0506407
• NED https://ned.ipac.caltech.edu/uri/NED::InRefcode/2005ApJ...628L.123K
• ELECTR https://doi.org/10.1086%2F432719
• SIMBAD http://simbad.u-strasbg.fr/simbo.pl?bibcode=2005ApJ...628L.123K
• PDF https://iopscience.iop.org/article/10.1086/432719/pdf
• DATA https://irsa.ipac.caltech.edu/bibdata/2005/K/2005ApJ...628L.123K.html
• SPIRES http://inspirehep.net/search?p=find+eprint+astro-ph/0506407