NOAO >   Observing Info >   Approved Programs >   2014B-0282

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Proposal Information for 2014B-0282


PI: Steve Rodney, Johns Hopkins University, rodney@jhu.edu
Address: Department of Physics and Astronomy, Charles and 34th Street, Bloomberg Center, Baltimore, MD, 21218, USA

CoI: Ryan Foley, University of Illinois at Urbana-Champaign
CoI: Saurabh Jha, Rutgers University
CoI: Tom Matheson, NOAO

Title: The Next Frontier: High-Redshift Supernovae in the HST Frontier Fields

Abstract: The Hubble Space Telescope has begun a major survey program to observe six Frontier Fields (FFs). Like previous HST surveys (e.g., GOODS, CANDELS, CLASH), these data will be used to discover high-redshift supernovae (SNe). However, the FF survey is unique: half of the fields are centered on strong-lensing clusters, and each epoch will reach 4 times deeper than previous surveys did. These advantages will allow us to discover SNe at unprecedented redshifts and to build up a small but powerful sample of lensed Type Ia SNe (SN Ia). With the high-z sample, we will for the first time measure the SN Ia rate at z > 2, providing a sensitive test of SN Ia progenitor models. In addition, 10 lensed SNe Ia at z > 0.5 will each deliver an extremely precise single-point probe through the lensing cluster - a unique test of the mass models for FF clusters. We have an approved 60-orbit HST program that will supplement FF imaging to improve SN light-curve coverage. Gemini spectroscopy of the brightest SNe will provide critical redshifts and classifications for the bulk of the SN sample (at z < 1.3), adding significant value to our approved HST program. The Gemini sample will include most of the lensed SN Ia, and will be an important anchor for the highest-redshift rates, connecting this new frontier to the well-studied low-z regime.


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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