Stirring a Corona with a Super Earth

Recently, two extremely closein planets were discovered around the K0V starCoRoT7, at distances of 0.017 and 0.046 AU, with 5 and 8 Earth massesrespectively. There is thus intense interest in this system. Xray observationswill be an extremely useful and sensitive tool to probe it, because the nearnessof the planets to the host star implies significant structural changes to thecorona due to the interactions of the stellar and planetary magnetospheres. Wepropose to observe this system 5 times at the joint conjunctions of the planetsfor a total of 50 ksec, and 4 further times when the outer planet is atquadrature, for 20 ksec. We expect to detect the signature of the interactionunambiguously and will model the system with numerical MHD simulations. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]