[23.03] Omega Centauri in the $u'g'r'i'z'$ Filter System: A New View of the Red Giant Branch

AAS 205th Meeting, 9-13 January 2005
Session 23 Globular Clusters in and around the Milky Way
Poster, Monday, January 10, 2005, 9:20am-6:30pm, Exhibit Hall

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[23.03] Omega Centauri in the u'g'r'i'z' Filter System: A New View of the Red Giant Branch

C.T. Rodgers (University of Wyoming), J.A. Smith (LANL/University of Wyoming), M. Pierce (University of Wyoming), D.L. Tucker (FNAL)

We present new u'g'r'i'z' photometry of the globular cluster Omega Centauri. We construct color-magnitude diagrams (CMDs) and color-color diagrams (CCDs) and fit these using the Girardi et al. 2004 isochrones to constrain the spread in the age and metallicity of the red giant branch. Finally, we briefly discuss the star formation history of this fascinating cluster.

This material is based upon work supported by the National Science Foundation under Grant No. 0098401.

The author(s) of this abstract have provided an email address for comments about the abstract: crodgers@uwyo.edu

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