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Summary: Stellar Coronae in the Chandra and XMM-Newton Era
ASP Conference Series, Vol. TBD, 2001
F. Favata & J. Drake
The joint XMM-Newton and Chandra view of YYGem
B. Stelzer, V. Burwitz, R. Neuhauser
Max-Planck Institut fur extraterrestrische Physik, Postfach 1312,
D-85741 Garching, Germany
M. Audard
Paul Scherrer Institut, Wurenlingen & Villigen, 5232 Villigen PSI,
Switzerland
J. H. M. M. Schmitt
Hamburger Sternwarte, Gojenbergsweg 112, D-21029 Hamburg,
Germany
Abstract. We have observed the
are star YYGem simultaneously
with XMM-Newton and Chandra as part of a multi-wavelength campaign
aiming at a study of variability related to magnetic activity in this short-
period eclipsing binary. Here we report on the rst results from the
analysis of the X-ray spectrum. The vicinity of the star provides high
enough S/N in the CCD cameras onboard XMM-Newton to allow for
time-resolved spectroscopy. Since the data are acquired simultaneously
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