A Systematic Survey of the Canis Major Overdensity

Details A Systematic Survey of the Canis Major Overdensity A Systematic Survey of the Canis Major Overdensity

Aug 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006noao.prop..490p&link_type=abstract

NOAO Proposal ID #2006B-0490

Physics

Scientific paper

Using 2MASS colors Martin et al. (2004) uncovered evidence for a remnant dwarf galaxy in Canis Major, in the form of an overdensity of M- giant stars. The spatial distribution of the M-giants indicate an extended, and likely disrupted, group of stars extending over roughly 30 degrees of the sky. We made preliminary photometric and spectroscopic observations to probe the populations and kinematics of this overdensity. We chose to target horizontal branch stars to avoid the majority of the field stars, and to probe a different population than that described in previous papers. We are seeking time to obtain accurate photometry to calibrate our current and future spectroscopic observations, and to search for additional candidates.

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