The Bipolar X-Ray Jet of the Classical T Tauri Star DG Tau
Guedel, M; Audard, M; Bacciotti, F; et al.Bary, JS; Briggs, KR; Cabrit, S; Carmona, A; Codella, C; Dougados, C; Eisloeffel, J; Gueth, F; Guenther, H; Herczeg, G; Kundurthy, P; Matt, SP; Mutel, RL; Ray, T; Schmitt, JHMM; Schneider, PC; Skinner, SL; van Boekel, R
Date: 2012
Publisher
Astronomical Society of the Pacific
Abstract
We report on new X-ray observations of the classical T Tauri star DG
Tau. DG Tau drives a collimated bi-polar jet known to be a source of X-ray emission
perhaps driven by internal shocks. The rather modest extinction permits study of the
jet system to distances very close to the star itself. Our initial results presented here
show ...
We report on new X-ray observations of the classical T Tauri star DG
Tau. DG Tau drives a collimated bi-polar jet known to be a source of X-ray emission
perhaps driven by internal shocks. The rather modest extinction permits study of the
jet system to distances very close to the star itself. Our initial results presented here
show that the spatially resolved X-ray jet has been moving and fading during the past
six years. In contrast, a stationary, very soft source much closer (≈ 0.15 − 0.2
′′) to
the star but apparently also related to the jet has brightened during the same period. We
report accurate temperatures and absorption column densities toward this source, which
is probably associated with the jet base or the jet collimation region.
Physics and Astronomy
Faculty of Environment, Science and Economy
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