Abstract

We present initial measurements of the extreme ultraviolet (EUV) emission from two nearby late-type dwarfs, α Cen (G2 V+K1 V) and HR 6094 (G5 V), obtained with the Extreme Ultraviolet Explorer (EUVE) satellite. Both objects were observed for extended periods during the in-orbit calibration pointings of EUVE. Alpha Cen was detected in four bandpasses spanning the entire EUV, between 100 and 700 A, while HR 6094 was detected for the first time as an EUV source in two bandpasses. Neither source exhibited any variability or flaring. An emission measure analysis of the EUVE data for α Cen combined with previously published Einstein X-ray and IUE measurements indicates two distinct temperature components for the combined α Cen binary system

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