NOAO >   Observing Info >   Approved Programs >   2013A-0224

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Proposal Information for 2013A-0224


PI: Kevin Luhman, Penn State University, kluhman@astro.psu.edu
Address: Astronomy Department, 525 Davey Lab, University Park, PA 16802, USA

CoI: Eric Mamajek, University of Rochester

Title: A Census of Low-mass Stars and Brown Dwarfs in Upper Scorpius

Abstract: The Upper Scorpius association likely contains the largest population of low-mass stars and brown dwarfs among the nearest and youngest clusters and associations ((tau)\lesssim10 Myr, d\lesssim150 pc). Thus, it offers the best available statistical constraints on the IMF and other properties of low-mass objects (e.g., binary fraction, disk fraction). We propose to continue our efforts at achieving a largely complete census of low-mass members of Upper Sco by obtaining optical spectra of candidate members that we have identified from wide-field optical and near-infrared surveys (2MASS, DENIS, UKIDSS), which will be used to measure their spectral types and confirm their membership.


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 >   2013A-0224

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