Near-Infrared Photometry of Open and Globular Clusters

Details Near-Infrared Photometry of Open and Globular Clusters Near-Infrared Photometry of Open and Globular Clusters

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21344201k&link_type=abstract

American Astronomical Society, AAS Meeting #213, #442.01; Bulletin of the American Astronomical Society, Vol. 41, p.319

Astronomy and Astrophysics

Astronomy

Scientific paper

Using near-infrared color magnitude diagrams constructed using data from the Two Micron All Sky Survey (2MASS), we have measured the slope of the red giant branch (RGB) for more than 30 Galactic globular clusters and 15 Galactic open clusters. We have examined the relation between RGB slope and cluster metal abundance in these systems and find a distinct difference between the open and globular cluster relations.
Our aim is to investigate the reasons for this difference and whether it may shed some light on the different chemical enrichment histories of the Milky Way's disk and halo.

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