NOAO >   Observing Info >   Approved Programs >   2011A-0410

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Proposal Information for 2011A-0410


PI: Ashley Pagnotta, Louisiana State University, pagnotta@phys.lsu.edu
Address: Physics Department, 202 Nicholson Hall, Tower Dr., Baton Rouge, LA 70803, USA

CoI: Bradley E. Schaefer, Louisiana State University

Title: Testing the Hibernation Hypothesis: Measuring Long-Term Brightness Changes in Southern Classical Novae

Abstract: The evolutionary track of cataclysmic variables, including classical novae, is still not well known. The hibernation model originally proposed by Shara et al. (1986) is the currently-favored scenario, however it not universally accepted. This model explicitly predicts a slow decline in magnitude of classical novae in the decades and centuries following the nova outburst, on the order of 1 mag/century. We have the ability to obtain and standardize old data from many sources, therefore we propose to obtain modern magnitudes of the full set of galactic classical novae to compare to previous observations and test the hibernation model. Using a large sample size allows us to perform a robust statistical analysis to minimize the errors introduced by flickering and older data sources. This proposal addresses the novae visible during winter in the Southern hemisphere.


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NOAO >   Observing Info >   Approved Programs >   2011A-0410

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