NOAO >   Observing Info >   Approved Programs >   2014B-0141

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Proposal Information for 2014B-0141


PI: Todd Henry, Georgia State University, thenry@astro.gsu.edu
Address: Department of Physics and Astronomy, Atlanta, GA, 30303, USA

CoI: Elliott Horch, Southern Connecticut State University
CoI: Jennifer Winters, Georgia State University

Title: Searching for Companions to Nearby Stars on Solar System Scales

Abstract: We propose to use the Differential Speckle Survey Instrument (DSSI) on Gemini-N to survey hundreds of the nearest stars to reveal companions. DSSI on Gemini is able to detect companions with separations as small as the Sun to Mercury for AFGKM stars out to 25 pc. The resulting portrait of single, binary, triple, and higher order multiple star systems will drive research on star formation processes for most stars in the Galaxy, while individual measurements of companion locations and types will be used as benchmarks for decades. Ultimately, we will answer the basic questions of whether or not most stars are single or multiple, by how much the multiplicity changes with stellar mass, and which stars orbit one another in such configurations that make it difficult for the creation of planets.


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NOAO >   Observing Info >   Approved Programs >   2014B-0141

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