Mass Loss in Globular Clusters

Details Mass Loss in Globular Clusters Mass Loss in Globular Clusters

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004sptz.prop..217f&link_type=abstract

Spitzer Proposal ID #217

Physics

Scientific paper

The goal of this project is to use warm circumstellar dust around globular cluster red giants as an indicator of mass loss. We will identify the giants from ground-based near-IR photometry, and identify the presence of dust with near-IR-to-IRAC colors. This will allow us to determine the mass-loss duty cycle and overall mass-loss rate. Combining the data with the results of a previous ISO study, we will calibrate the dependence of mass-loss on cluster properties such as metallicity, horizontal branch type, and structure. Mass loss is an important input to stellar population modeling, and this project will provide a much better observational calibration than has been used in the past.

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