Status of Abundance Determinations for Low Mass Dwarfs and Subdwarfs

Details Status of Abundance Determinations for Low Mass Dwarfs and Subdwarfs Status of Abundance Determinations for Low Mass Dwarfs and Subdwarfs

Sep 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aspc..336...69h&link_type=abstract

Cosmic Abundances as Records of Stellar Evolution and Nucleosynthesis in honor of David L. Lambert, ASP Conference Series, Vol.

Astronomy and Astrophysics

Astronomy

Scientific paper

In this talk, I will review the status of abundance determinations for M dwarfs and M subdwarfs. Most results come from photometric data (position of the star in a calibrated color magnitude diagram) and/or low resolution studies of molecular band-strengths. These methods give only rough estimates of the metallicity. A few high resolution studies have been attempted, and more are in progress. The calibration of low resolution abundance indicators using these high resolution studies offers the best hope for obtaining metallicities of large samples of stars in the future.

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