ROSAT Observations of alpha TrA and IOTA AUR

Details ROSAT Observations of alpha TrA and IOTA AUR ROSAT Observations of alpha TrA and IOTA AUR

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aas...181.5102k&link_type=abstract

American Astronomical Society, 181st AAS Meeting, #51.02; Bulletin of the American Astronomical Society, Vol. 24, p.1205

Astronomy and Astrophysics

Astronomy

1

Scientific paper

We report here on pointed ROSAT observations of the hybrid chromosphere stars alpha TrA (K4III) and iota Aur (K3II). We detect alpha TrA at signal-to-noise greater than 50, and iota Aur marginally. The column density of absorption of X-rays from alpha TrA is consistent with IUE observations. We also see a flare type event in its lightcurve. Finally, we find that the X-ray emission from alpha TrA is mostly from plasma at temperatures greater than 1 keV.

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