IRAC Characterization of Galactic AGB Stars

Details IRAC Characterization of Galactic AGB Stars IRAC Characterization of Galactic AGB Stars

May 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006sptz.prop30411f&link_type=abstract

Spitzer Proposal ID #30411

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Scientific paper

We propose to observe a representative sample of well characterized AGB stars to obtain high precision IRAC absolute magnitudes and colors. The sample will explore the variation of the IRAC photometry with time, variability class, chemical type and mass loss rate. The results will be made available to the community in the form of template magnitudes and colors for each target, with the goal of helping the identification of AGB stars in already available, and future, IRAC surveys data. This will enable more detailed studies of the AGB phase as part of galactic population synthesis studies and the chemical evolution of the diffuse matter in the interstellar medium. Reliable prescriptions for discriminating AGB stars from other classes of red sources will also help other projects whose samples are contaminated by background AGB sources.

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