NOAO >   Observing Info >   Approved Programs >   2010B-0449

Small NOAO Logo

Proposal Information for 2010B-0449


PI: Lison Malo, University of Montreal, malo@astro.umontreal.ca
Address: Physic department, C.P. 6128, Succursale Centre-Ville, Montreal, Quebec H3C 3J7, Canada

CoI: Rene Doyon, University of Montreal
CoI: Etienne Artigau, University of Montreal
CoI: David Lafreniere, University of Montreal
CoI: Marie-Eve Naud, University of Montreal

Title: Photometric observations of Low-mass Candidates Members of Nearby Young Associations

Abstract: Young nearby associations provide a crucial sample of stars for studying the local star formation history, investigating the early phases of planet formation, and searching for exoplanets through direct imaging. While numerous new associations have been identified in the last decade, their members are mostly restricted to relatively massive F, G and K stars. Through a novel statistical analysis, we have identified 100 highly probable young low-mass (>K7) members of the (beta) Pictoris moving group, the Tucana-Horologium and AB Doradus associations. All stars show prominent H(alpha) and X-ray emission, and measuring their lithium absorption is required to confirm their membership. We propose to use CCD camera with i Gunn filter to measure I magnitude of 24 southern candidates available this semester. Our program will significantly improve (double) the census of (beta) Pic, Tuc/Hor and AB Dor.


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 >   2010B-0449

noaoprop-help@noao.edu

Small NOAO Logo