SIMULTANEOUS XMM-NEWTON AND CXO/HETGS OBSERVATIONS OF SEYFERT 1 GALAXIES

We propose simultaneous XMMNewton and CXO observations of two bright Seyfert 1galaxies as part of a longterm programme to ensure that such observations are performed for the 20 brightest Seyfert 1 galaxies during the lifetimes ofthe missions. The targets, NGC 526A and MCG25822, were selected since theyare the brightest members of the sample for which neither XMMNewton nor CXO/HETGS observations have been made/scheduled with adequate signaltonoise. The proposed observations will enable a number of important scientific issues tobe addressed. For example, we will be able to decouple the narrow and broad FeKalpha line components: a crucial step in determining the real importance of relativistic effects close to the black hole. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]