NOAO >   Observing Info >   Approved Programs >   2013A-0284

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Proposal Information for 2013A-0284


PI: Frederick M. Walter, Stony Brook University, frederick.walter@stonybrook.edu
Address: Physics Department, Stony Brook, NY 11794-3800, USA

CoI: Stella Kafka, American Institute of Physics
CoI: Aleksandra Cerniha, Stony Brook University

Title: The relation between quiescent novae, the V Sge stars, and SNe Ia progenitors

Abstract: We request 7.5 hours (0.75 nights) with GMOS-S to obtain phase- resolved spectroscopy of the nova NR TrA (N TrA 2008) in quiescence. It has a 5.25 hour period and a light curve and spectrum that strongly resemble those of V Sge. V Sge stars are thought to have high mass accretion rates feeding steady nuclear burning on the surface of a massive white dwarf, and are a promising SNe Ia progenitor. The phase- resolved spectra will help us determine the location of the hot gas in the system, and will ultimately help us understand the class of V Sge stars, their relation to the persistent supersoft X-ray sources, and one way of making SNe Ia.


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NOAO >   Observing Info >   Approved Programs >   2013A-0284

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