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Fe K alpha and hydrodynamic loop model diagnostics for a large flare on II Peg
Barbara Ercolano, Jeremy J. Drake, Fabio Reale +2
The observation by the Swift X-ray Telescope of the Fe K alpha_1, alpha_2 doublet during a large flare on the RS CVn binary system II Peg represents one of only two firm detections…
X-ray Emission from Young Stellar Objects in the εChamaeleontis Group: the Herbig Ae Star HD 104237 and Associated Low-Mass Stars
Paola Testa, David P. Huenemoerder, Norbert S. Schulz +1
We present Chandra-HETGS observations of the Herbig Ae star HD 104237 and the associated young stars comprising lower mass stars, in the 0.15-1.75\msol mass range, in their pre-mai…
Geometry Diagnostics of a Stellar Flare from Fluorescent X-rays
P. Testa, J. J. Drake, B. Ercolano +5
We present evidence of Fe fluorescent emission in the Chandra HETGS spectrum of the single G-type giant HR 9024 during a large flare. In analogy to solar X-ray observations, we int…