NOAO >   Observing Info >   Approved Programs >   2009B-0226

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Proposal Information for 2009B-0226


PI: Scott W. Fleming, University of Florida, scfleming@astro.ufl.edu
Address: Astronomy Department, 211 Bryant Space Science Center, Gainesville, FL 32611, U.S.A.

CoI: Scott Engle, Villanova University
CoI: Jian Ge, University of Florida
CoI: Edward Guinan, Villanova University
CoI: Joshua Pepper, Vanderbilt University
CoI: Andrej Prsa, Villanova University
CoI: Keivan Stassun, Vanderbilt University
CoI: Ronald Ballouz, Villanova University
CoI: Kyle Conroy, Villanova University
CoI: Jonathan Devor, Cisco Systems

Title: This is For the BiRDS: Binary Science with EXPERT/ET

Abstract: Large-area surveys for transiting planets discover many binary stars that are viewed as contaminants. Their signals are orders of magnitude larger than the surveys' primary targets, but due to resource and time constraints they are rarely followed-up or published. BiRDS (\underlineBinary \underlineResearch with \underlineDedicated \underlineSpectroscopy) seeks to perform spectroscopic follow-up of binary stars uncovered as part of large-area surveys. Here, we propose to perform spectroscopic follow-up of 48 eclipsing binary (EB) stars, primarily from the KELT Pilot Project, the MARVELS Pilot Project and the TrES survey, using EXPERT. The Echelle spectra will be used to measure stellar parameters and characterize the orbits of the secondaries. The primary research interests of BiRDS are low-mass EBs for studying (1)the mass-radius relationship, (2)short-period, eccentric binaries for studying the physics of tidal circularization, and (3)rare or unusual binary systems. With next-generation transient surveys like PanSTARRS and LSST arriving in the next several years, the discovery rate of new binary systems will grow significantly. The primary objective of BiRDS is to provide spectroscopic follow-up of these systems to maximize scientific return by measuring their orbital parameters and determining their evolutionary status and physical properties with high precision.


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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