NOAO >   Observing Info >   Approved Programs >   2006A-0569

Small NOAO Logo

Proposal Information for 2006A-0569


PI: R. Michael Rich, UCLA, rmr@astro.ucla.edu
Address: Dept of Physics and Astronomy, Physics and Astronomy Bldg, 430 Portola Plaza, Box 951547, Los Angeles, CA 90095-1547, USA

CoI: David Reitzel, UCLA

Title: A Large Scale Radial Velocity Survey of the Galactic Bulge using 2MASS- selected M Giants

Abstract: We propose to continue our radial velocity survey of the Galactic bulge. The recently completed 2MASS survey has given an infrared- selected sample of late-type giants in the Galactic bulge. Using infrared colors, one can select the late M giant members of the bulge. It has been demonstrated that these stars can probe the global velocity field of the bulge, constrain models of the bulge/bar and to measure the rotation of the old stellar population in the bulge. Up to now, various investigators have used differently selected samples of stars for these measurements, and no systematic large scale survey has been carried out. As the stars are bright in the near-IR, it is possible to rapidly survey a large number of fields in short investment of observing time. In addition, we may serendipitously discover kinematic streams in the bulge, similar to the Sagittarius dwarf spheroidal galaxy.


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 >   2006A-0569

noaoprop-help@noao.edu

Small NOAO Logo