Other
Scientific paper
Feb 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003noao.prop..259g&link_type=abstract
NOAO Proposal ID #2003A-0259
Other
Scientific paper
Near-infrared (NIR) spectroscopy is a powerful tool for the study of supernovae (SNe), offering valuable insights into heavy element nucleosynthesis, explosion physics, and pre-explosion mass loss and evolution. Observations of the early-time NIR spectroscopic evolution of Type Ia and Type Ib/Ic SNe will provide constraints on the chemical structure of SN ejecta and the explosion kinematics of supernovae which cannot be obtained in other wavelength regimes. In addition, late-time NIR spectra will be used to measure the radioactive heavy-element yield in these SNe and also probe for molecule formation in the SN ejecta. Here we propose a KPNO ``Target-of-Opportunity'' (ToO) program to obtain early-time NIR spectra of a bright Type Ia or Type Ib/Ic supernova (<=14.5 mag) with FLAMINGOS when it is available on either the 2.1 or 4 m telescopes. We are requesting five visits of 1-2 hrs (including calibrations) at roughly 1 week intervals, covering the evolution from discovery to about 30 days after maximum light. We also request a four night run on the 4 m telescope near the end of FLAMINGOS availability in May to obtain a high-quality late-time spectrum of the ToO target.
Fesen Robert A.
Gerardy Christopher L.
Höflich Peter
Howie Marion G.
Nomoto Ken'ichi
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