Bibcode
Garcia-Alegre, M. C.; Vazquez, M.; Ponz, J. D.
Bibliographical reference
Astronomy and Astrophysics, vol. 96, no. 1-2, Mar. 1981, p. 17-22.
Advertised on:
3
1981
Journal
Citations
12
Refereed citations
12
Description
Mg II resonance lines at 2800 A were studied in the spectra of F and G
main sequence stars, observed with the IUE satellite in high resolution
mode. Correlation with other chromospheric indicators were investigated
and a search was conducted for the best candidates to continue further
studies of differential rotation. An attempt has been made to see
whether there is a unique relation between the logarithm of the Mg II k
emission line width and the absolute visual magnitude, independent of
luminosity and emission strengths, as derived for the Ca II K emission
line.