NOAO >   Observing Info >   Approved Programs >   2013B-0147

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Proposal Information for 2013B-0147


PI: Mark M. Phillips, Carnegie Institution of Washington, mmp@lco.cl
Address: Carnegie Observatories, Las Campanas Observatory, Casilla 601, La Serena, Chile

CoI: Eric Hsiao, Carnegie Observatories
CoI: Carlos Contreras, Carnegie Observatories
CoI: Nidia Morrell, Carnegie Observatories
CoI: Christopher Lidman, Australian Astronomical Observatory
CoI: Stuart Ryder, Australian Astronomical Observatory
CoI: Maximilian Stritzinger, Aarhus University
CoI: Brian Schmidt, Australian National University
CoI: G. H. ``Howie'' Marion, Harvard-Smithsonian Center for Astrophysics

Title: Near-Infrared Spectroscopy of Type Ia Supernovae

Abstract: The Carnegie Supernova Project II (CSP II) is an NSF-funded, 5-year program to obtain optical and near-IR observations of 100-150 Type Ia supernovae (SNe Ia) located in the smooth Hubble flow (0.03 < z < 0.10). The main emphasis of the CSP II is to obtain near-IR light curves in order to achieve a distance precision of 1-2%, as well as to build a definitive low-z reference for NIR observations of SNe Ia at high-z with HST and next-generation dark energy experiments such as WFIRST. In this proposal, we request time to continue a highly- successful program of near-IR spectroscopic observations of SNe Ia with GNIRS on Gemini North. These spectra are a key ingredient to achieving the goals of the CSP II as they will allow the accurate calculation of near-IR K-corrections as a function of light curve phase and shape, which to date are only poorly understood. Moreover, the spectra will provide unique diagnostics of the progenitors and explosion mechanism(s) of SNe Ia.


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



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