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The joint XMM-Newton and Chandra view of YY Gem

B. Stelzer·V. Burwitz·R. Neuhaeuser·M. Audard·J. H. M. M. Schmitt
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Abstract

We have observed the flare star YY Gem 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 first 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 they allow for a cross-calibration check of the performance of the XMM-Newton RGS and the LETGS on Chandra.

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B. Stelzer, V. Burwitz, R. Neuhaeuser, M. Audard, J. H. M. M. Schmitt. 2001-09-24. The joint XMM-Newton and Chandra view of YY Gem. https://arxiv.org/abs/astro-ph/0109413

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