NOAO >   Observing Info >   Approved Programs >   2012A-0200

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Proposal Information for 2012A-0200


PI: Saurabh W. Jha, Rutgers, the State University of New Jersey, saurabh@physics.rutgers.edu
Address: Dept. of Physics and Astronomy, 136 Frelinghuysen Rd, Piscataway, NJ 08854, USA

CoI: Thomas Matheson, National Optical Astronomy Observatory
CoI: Steve Rodney, Johns Hopkins University
CoI: Adam G. Riess, Johns Hopkins University
CoI: Curtis McCully, Rutgers, the State University of New Jersey
CoI: Brandon Patel, Rutgers, the State University of New Jersey

Title: Adding to the Treasury: Spectroscopic Classification of High-Redshift Supernovae Discovered by HST

Abstract: In Type Ia supernovae (SNe Ia), nature has given us exquisite tools to survey the cosmos. Here we propose Gemini spectroscopy to classify and measure redshifts for 6 SN candidates discovered by the Hubble Space Telescope (HST) in the CANDELS and CLASH Multi-Cycle Treasury (MCT) programs in 2012A. More than 1600 HST orbits over three years will be devoted to the search and follow-up programs, and these treasured data sets must be supplemented by a suite of ground-based observations. Gemini+GMOS will provide spectra of the z \lesssim 1 SN discoveries, connecting the HST data set to ground-based samples at similar redshifts. These data will be essential for robust constraints on the time variation of dark energy, SN Ia evolution, and SN Ia rates and progenitor models.


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NOAO >   Observing Info >   Approved Programs >   2012A-0200

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