NOAO > Observing Info > Approved Programs > 2007A-0272
|
NOAO > Observing Info > Approved Programs > 2007A-0272 |
|
PI: Carl Grillmair, Spitzer Science Center, carl@ipac.caltech.edu
Address: 1200 E. California Blvd, Pasadena, CA 91125, U.S.A.
CoI: Odysseas Dionatos, INAF - Osservatorio Astronomico di Roma
CoI: Douglas Geisler, Universidad de Concepcion
CoI: Kathryn Johnston, Wesleyan University
CoI: Steven Majewski, University of Virginia
CoI: Richard Patterson, University of Virginia
CoI: David Spergel, Princeton University
CoI: Scott Tremaine, Princeton University
Title: Fishing in Tidal Streams
Abstract:
The primary goal of this program is to measure radial velocities and
establish physical associations for individual stars in three recently
discovered, long tidal streams. Measured radial velocities for the
streams will enable much tighter constraints to be placed on the orbits
of the streams and the shape of the potential in the nearby Galactic
halo. The brightest confirmed stream stars will also become part of a
high-priority target list for observation with the Space Interferometry
Mission. SIM proper motion measurements of stars in these and other
streams will enable us to tightly constrain the detailed, three-
dimensional structure of the Galactic potential field from the Solar
Circle out to 50 kpc.
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 > 2007A-0272 |
|