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Discovery of a bipolar X-ray jet from the T Tauri star DG Tau
M. Guedel, S. L. Skinner, M. Audard +2
We have obtained and analyzed Chandra ACIS-S observations of the strongly accreting classical T Tauri star DG Tau. Our principal goals are to map the immediate environment of the s…
Million-Degree Plasma Pervading the Extended Orion Nebula
M. Guedel, K. R. Briggs, T. Montmerle +3
Most stars form as members of large associations within dense, very cold (10-100 K) molecular clouds. The nearby giant molecular cloud in Orion hosts several thousand stars of ages…
Accretion and Outflow-Related X-Rays in T Tauri Stars
M. Guedel, K. Briggs, K. Arzner +22
We report on accretion- and outflow-related X-rays from T Tauri stars, based on results from the "XMM-Newton Extended Survey of the Taurus Molecular Cloud." X-rays potentially form…
X-rays from young stars - a summary of highlights from the XMM-Newton Extended Survey of the Taurus Molecular Cloud (XEST)
M. Guedel
The XMM-Newton Extended Survey of the Taurus Molecular Cloud (XEST) is a survey of the nearest large star-forming region, the Taurus Molecular Cloud (TMC), making use of all instru…
A Chandra X-ray detection of the L dwarf binary Kelu-1: Simultaneous Chandra and Very Large Array observations
M. Audard, R. A. Osten, A. Brown +4
Magnetic activity in ultracool dwarfs, as measured in X-rays and H, shows a steep decline after spectral type M7-M8. So far, no L dwarf has been detected in X-rays. In contrast,…
A Mid-Infrared Spitzer Study of the Herbig Be Star R Mon and the Associated HH 39 Herbig-Haro Object
M. Audard, S. Skinner, M. Guedel +3
We report on initial results of our Spitzer Cycle 2 program to observe the young massive star R Mon and its associated HH 39 Herbig-Haro object in the mid-infrared. Our program use…