Looking for Metallicity Spread in Clusters Using HST/WFC3 Multiband Photometry

Details Looking for Metallicity Spread in Clusters Using HST/WFC3 Multiband Photometry Looking for Metallicity Spread in Clusters Using HST/WFC3 Multiband Photometry

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21715309o&link_type=abstract

American Astronomical Society, AAS Meeting #217, #153.09; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

We describe efforts to study the internal distribution of metallicites in stellar clusters using multiband HST/WFC3 images that include observations in filters that are designed to be more sensitive to metallicity than standard broadband filters. We analyze observations of NGC 6791, NGC 5927, NGC 104, NGC 6752, and M92, which span a range of metallicities, -2.2 < [Fe/H] < 0.35. We search for metallicity spread by comparing the observed width of the stellar locii in several different color indices to the spread expected from photometric errors.

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