NOAO >   Observing Info >   Approved Programs >   2013B-0064

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Proposal Information for 2013B-0064


PI: Russell M. Genet, California Polytechnic State University, russmgenet@aol.com
Address: Research Scholar in Residence, 4995 Santa Margarita Lake Road, Santa Margarita, CA 93453, US

CoI: William I. Hartkopf, US Naval Observatory
CoI: R. Kent Clark, Univ. South Alabama
CoI: Paul Hardersen, Univ. North Dakota
CoI: Paul Wren, Univ. of North Dakota
CoI: Daniel Wallace, Univ. of North Dakota
CoI: Ryan Gelston, California Polytechnic State Univ.

Title: Speckle Interferometry and Photometry of Binary Stars

Abstract: Binary orbits, when combined with parallaxes, yield dynamical masses, while photometry of the components restrains astrophysical models. Both are vital to understanding stellar evolution. Speckle interferometry, which is telescope resolution limited as opposed to seeing limited, allows observation of close, short-period binaries. We will use our next-generation, ultra-portable, low cost, EMCCD based speckle camera to observe some 500 binaries. We will confirm Hipparcos/Tycho double star discoveries as candidates for new binaries, classify new pairs by determining if their motion is curved (binary) or linear (optical double), add high-accuracy speckle observations that will allow the first determination of orbits, refine existing orbits by extending orbital coverage with speckle observations, and obtain precise photometry of binary components to link photometric with dynamical masses. For a decade, PI Genet has held undergraduate astronomy research seminars at Cuesta College that feature published student observations of binary stars. This run will demonstrate that student researchers can be an integral part of speckle interferometry runs at major observatories.


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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