Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...169..219f&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 169, no. 1-2, Nov. 1986, p. 219-226.
Astronomy and Astrophysics
Astrophysics
17
Calcium, Eclipsing Binary Stars, H Lines, K Lines, Spectrum Analysis, Abundance, Chromosphere, Emission Spectra, Stellar Activity
Scientific paper
The authors report new Ca II H and K emission line fluxes and equivalent widths for seven RS CVn binary systems, observed at several orbital phases. All the stars show enhanced chromospheric actvity. With information from available spectra, an individual study for each star has been done. Double emission has been found for some systems in which perhaps the hotter component could be the more active. The authors have tested spectroscopically the model of localized active regions for the prototype RS CVn.
de Castro Elisa
Fernandez-Figueroa María José
Gimenez Alvaro
Montesinos Benjamin
Reglero Victor
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