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Analysis of chromospheric activity in late type stars from UV observations

Buccino, A. P.; Mauas, P. J. D.

The purpose of this work is to study the chromospheric activity of the latest main sequence stars, which are generally observed in low dispersion. In this work, we present a calibration between Mount Wilson index and the Mg II line-core flux, measured on simultaneous low resolution IUE spectra. FULL TEXT IN SPANISH