The Kinematics and Chemistry of the Sagittarius Dwarf Galaxy Core

Details The Kinematics and Chemistry of the Sagittarius Dwarf Galaxy Core The Kinematics and Chemistry of the Sagittarius Dwarf Galaxy Core

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21341908f&link_type=abstract

American Astronomical Society, AAS Meeting #213, #419.08; Bulletin of the American Astronomical Society, Vol. 41, p.235

Astronomy and Astrophysics

Astrophysics

Scientific paper

The Sagittarius (Sgr) dSph provides a unique laboratory where tidal disruption and chemical evolution signatures can be studied in detail. We present moderate resolution (R 15,000) spectroscopy of a large sample (> 1000) of RV-confirmed member stars from Sgr dSph. High- resolution abundances of the Sgr tidal tails have already shown an abundance trend with tidal tails length. This medium-resolution study allows us to study the metallicity and kinematical trends across the main body of the Sgr dSph. We examine kinematical and metallicity trends across dozens of fields along the major, minor and diagonal axes from the core out to 12 degrees along the galaxy's major axis.
This work was supported by an NSF Astronomy and Astrophysics Postdoctoral Fellowship under award AST-0602221. We acknowledge funding by NSF grant AST-0307851, NASA/JPL contract 1228235, the David and Lucile Packard Foundation, the F.H. Levinson Fund of the Peninsula Community Foundation. the NASA Graduate Student Researchers Program, a University of Virginia Faculty Senate Dissertation-Year Fellowship, and by the Virginia Space Grant Consortium.

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