Chromospheric lines in red dwarf flare stars. III

Details Chromospheric lines in red dwarf flare stars. III Chromospheric lines in red dwarf flare stars. III

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...209..279p&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 209, no. 1-2, Jan. 1989, p. 279-295.

Astronomy and Astrophysics

Astrophysics

41

Chromosphere, Flare Stars, Red Dwarf Stars, Stellar Activity, Stellar Spectra, Emission Spectra, Line Spectra, Stellar Composition, Stellar Temperature

Scientific paper

Line profiles of spotted dK5e-dM1e flare stars outside of flares are discussed, with special attention given to profiles of He D3, Na D1 and D2, H-alpha, Li 6707 A, and the Ca II IR-triplet. The results suggest that chromospheric electron densities range between 5 x 10 to the 11th and 5 x 10 to the 12th/cu cm, and that the radiated power from the chromosphere decreases for later spectral types. Intercomparison of single stars and binaries indicates that rotation may not be the only driving force of atmospheric activity.

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