An Investigation of the Canis Major Over-density

Details An Investigation of the Canis Major Over-density An Investigation of the Canis Major Over-density

Aug 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aspc..393..251l&link_type=abstract

New Horizons in Astronomy: Frank N. Bash Symposium 2007 ASP Conference Series, Vol. 393, proceedings of the conference held 14-1

Astronomy and Astrophysics

Astronomy

Scientific paper

In this paper we attempt to explain the origin of the Canis Major Over-density (CMa) discovered by tet{mart2004a}. We present new photometry for various CMa fields obtained at McDonald Observatory and CTIO. We obtained spectra at McDonald Observatory of blue stars selected from the photometry. Based upon their kinematics and their preliminary abundances, we tentatively suggest that the blue plume (BP) present in the CMa fields is a feature of the Galactic disk and likely did not originate from an accreted dwarf galaxy.

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