We propose to observe the open cluster NGC 6475 (age virgul220 Myr, Fe/H 0.14 +0.06) to investigate the activityrotationage relationship of lowmass stars inthe crucial age interval between the Pleiade
We propose to continue the monitoring of the M31 core with 5x23ks XMM EPIC and5x20ks Chandra HRCI observations equally distributed from Nov 2010 to mid Feb2011 to determine additional light curves for
scientific abstract the warm (100 5000 k), dense (n(h_2) > 10^3 cm^3) interstellar medium is a decisive component of the whole interstellar medium and is closely coupled to key processes like star
