NOAO >   Observing Info >   Approved Programs >   2010B-0255

Small NOAO Logo

Proposal Information for 2010B-0255


PI: Gail Schaefer, Georgia State University, schaefer@chara-array.org
Address: CHARA, Mount Wilson Observatory, Mount Wilson, CA 91023, USA

CoI: Lisa Prato, Lowell Observatory
CoI: Michal Simon, SUNY Stony Brook

Title: Precise Masses of Young Stars in Taurus: Finishing the Job on Elias 12

Abstract: We are near our goal of measuring the masses of the binary components in Elias 12N and NTT 045251+3016 to better than 10% and determining the masses of T Tau Sa and Sb dynamically. This level of precision is important to validate and distinguish among theoretical calculations of PMS evolution. We have reached this point thanks to consistent assignments of time. The proposed imaging and spectroscopic measurements will enable us to complete the job of mapping the orbits on these young binaries, lay critical groundwork for longer period systems in our sample, and allow us to examine the rotational properties of the components in young multiple systems.


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-0255

noaoprop-help@noao.edu

Small NOAO Logo