Tracers of Chromospheric Structure: Observations of CaII K and Hα in M Dwarfs

Details Tracers of Chromospheric Structure: Observations of CaII K and Hα in M Dwarfs Tracers of Chromospheric Structure: Observations of CaII K and Hα in M Dwarfs

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...209.1403w&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #14.03; Bulletin of the American Astronomical Society, V

Astronomy and Astrophysics

Astronomy

Scientific paper

We report on our observing program to capture simultaneous high resolution spectra of Ca II and Balmer lines in a sample of nearby M3 dwarfs. Our goal is to investigate the chromospheric heating required to produce both of these lines at the observed levels. We present the results of our observing program so far, and discuss the application of these results as empirical constraints on models of quiescent M dwarf atmospheres. We also present initial model calculations and place them in the context of the data.

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