Search for Variability in the Equivalent Width of the HeI D3 Spectrum Line in Several Stars of Later Spectral Type

Details Search for Variability in the Equivalent Width of the HeI D3 Spectrum Line in Several Stars of Later Spectral Type Search for Variability in the Equivalent Width of the HeI D3 Spectrum Line in Several Stars of Later Spectral Type

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005ap.....48..465t&link_type=abstract

Astrophysics, Volume 48, Issue 4, pp.465-474

Astronomy and Astrophysics

Astrophysics

1

Stars: Late Type, Spectral Lines: Equivalent Width, Stars: Late Type - Spectral Lines: Equivalent Width

Scientific paper

High resolution spectra with a high signal/noise ratio have been obtained in the region of the HeI D line for 13 dwarfs of spectral types A5 through K0. The variability in the equivalent width of this spectrum line was studied for five of these stars over a period of several hundred days. Significant variability was observed for only one of these stars, θ Cyg.

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