NOAO >   Observing Info >   Approved Programs >   2018A-0348

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Program Information for 2018A-0348


PI: Jennifer Winters, Harvard-Smithsonian Center for Astrophysics, jennifer.winters@cfa.harvard.edu
Address: 60 GARDEN STREET, CAMBRIDGE, MA 02138 USA

CoI: Todd Henry, Georgia State U.
CoI: Elliott P Horch, SCSU
CoI: Daniel Nusdeo, Georgia State U.
CoI: Dana Casetti, SCSU
CoI: Samuel Weiss, SCSU

Title: Searching for Companions to Nearby M Dwarfs on Solar System Scales

Abstract: We propose to use the Differential Speckle Survey Instrument (DSSI) on Gemini-N and -S to continue surveying ~1000 of the nearest M dwarfs to reveal stellar companions at separations on Solar System scales. DSSI on Gemini is able to detect companions with separations smaller than the Sun to Mercury for 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.

Program Type: Standard/Galactic

Scheduled Nights:
Run 1 (2018A):  GEM-NQ/Alopeke -- 20hrs band 2 (GS-2018A-Q-202 )


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NOAO >   Observing Info >   Approved Programs >   2018A-0348

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