Results are reported from A UV study of the transition regions of two X-ray-bright solar-type stars from the Pleiades, in an attempt to extend the main sequence age baseline for the transition-region activity-age relation over more than two orders of magnitude. However, no emission lines were detected from either star; the upper limits to the fluxes are consistent with previously determined saturation levels, but do not help to further constrain evolutionary models.
First ultraviolet observations of the transition regions of X-ray bright solar-type stars in the Pleiades
Advances in Space Research ; 10 , 2 19
1990-01-01
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Englisch
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