The Line of Sight Velocity Distribution of the Galactic Bulge

Details The Line of Sight Velocity Distribution of the Galactic Bulge The Line of Sight Velocity Distribution of the Galactic Bulge

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20917217r&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #172.17; Bulletin of the American Astronomical Society,

Astronomy and Astrophysics

Astronomy

Scientific paper

We are undertaking a large scale radial velocity survey of the Galactic bulge, using M giant stars selected from the 2MASS catalog as radial velocity probes. Here we report on the line of sight velocity distribution of 29 fields fields from -10 < l <+10 degrees and -6 < b < 5 degrees. We compare directly to theoretical predictions from the models of Zhao (1996). These comparisons indicate the presence of cold kinematic features, a somewhat unexpected result. The persistence from field to field of these features is investigated as well as comparisons to the well knows merger remnant, the Sagittarius dwarf galaxy.

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