44 citations · 45 across the 6 of their papers we have counts for
14 papers · 1 filter
Attacking the X-ray emission properties of young stars with the Sword of Orion
K. R. Briggs, M. Guedel, M. Audard +1
We present a survey of X-ray emission from young stars in the Sword of Orion star-formation region using XMM-Newton's EPIC detectors. We find over 850 X-ray sources, of which more…
A Multiwavelength Study of RZ Cassiopeiae: The XMM-Newton/VLA Campaign
Marc Audard, Julius R. Donisan, Manuel Guedel
XMM-Newton and the VLA simultaneously observed the eclipsing Algol-type binary RZ Cassiopeiae in August 2003. The secondary eclipse (K3 IV companion behind the A3 V primary) was pl…
Flare and quiescent X-ray emission from Sigma Geminorum
R. Nordon, E. Behar, M. Guedel
The X-ray active RS CVn binary system Sigma Geminorum was observed during a long-duration flare with XMM-Newton. We compare line emission during the flare with line emission measur…
High-Energy Processes in Young Stars: Chandra X-ray Spectroscopy of HDE 283572, RY Tau, and LkCa 21
Marc Audard, Stephen L. Skinner, Kester W. Smith +2
Weak-lined T Tauri stars (WTTS) represent the important stage of stellar evolution between the accretion phase and the zero-age main sequence. At this stage, the star decouples fro…
Stellar Flares and Coronal Structure
M. Guedel
Coronal structure and coronal heating are intimately related in magnetically active stars. Coronal structure is commonly inferred from radio interferometry and from eclipse and rot…
AD Leonis: Flares observed by XMM-Newton and Chandra
E. J. M. van den Besselaar, A. J. J. Raassen, R. Mewe +3
The M-dwarf AD Leonis has been observed with the Reflection Grating Spectrometers and the European Photon Imaging Camera aboard XMM-Newton and also with the Low Energy Transmission…