NOAO >   Observing Info >   Approved Programs >   2017A-0179

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Program Information for 2017A-0179


PI: Gerard Van Belle, Lowell Observatory, gerard@lowell.edu
Address: 1400 West Mars Hill Road, Flagstaff, Arizona 86001 United States

CoI: Elliott Horch, SCSU

Title: NESSI Survey of Potential Low-Mass Exoplanet Hosts

Abstract: We are carrying out a funded project to determine the stellar multiplicity rates of the lower main sequence at the brown dwarf-stellar transition point by conducting a comprehensive high spatial-resolution survey of the nearest 2,000 M-dwarfs. We are using the speckle cameras at WIYN, DCT, and Gemini-N on a range of apertures to determine multiplicity and fundamental stellar parameters for a volume-limited sample of these M-dwarf stars at unprecedented levels of accuracy, across the entire mass range for this class of stars. Previous investigations have overlooked the low-mass ($gtrsim$M4) range of the M sequence, due to both a lack of sensitivity and a lack of target inventory. Given the priority these targets will have for upcoming exoplanet studies of TESS and JWST - and the degree to which initially undetected multiplicity has affected Kepler results - a comprehensive survey of our nearby low-mass neighbors will produce a homogenous, complete catalog of fundamental utility. Our investigation leverages recent results from WISE and other nearby stars studies, to comprehensively expand and explore M-dwarf discovery space.

Program Type: Standard/NASA WIYN

Scheduled Nights:
Run 1 (2017A):  WIYNQ/NESSI -- 40hrs


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



NOAO >   Observing Info >   Approved Programs >   2017A-0179

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