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[14.04] Near-Infrared Spectra of Type Ib/c Supernovae

C. L. Gerardy, R. A. Fesen (Dartmouth), G. H. Marion, P. Höflich, J. C. Wheeler (University of Texas, Austin), K. Nomoto, K. Motohara (University of Tokyo)

We present results from the first comprehensive study of the near-infrared (NIR) spectra of Type Ib and Type Ic supernovae. The most prominent NIR spectral feature in these objects is a very broad P-Cygni line with a minimum near 1.03 \mum. Prior to maximum light this is typically the only strong feature, although a few other broad, faint features can be seen in high S/N spectra. After maximum light, the NIR spectra of these objects become significantly richer, exhibiting a number of P-Cygni and pure emission features. At very late times (~3 months) molecular (CO) emission can be seen.

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Bulletin of the American Astronomical Society, 34
© 2002. The American Astronomical Soceity.