X-RAY MONITORING OF SATURATED M DWARFS

We propose to observe two fastrotating M dwarfs in the saturated Xray emissionregime with the aim to get information on the characteristic sizes and spatialdistribution of the coronal structures, and on the temperature(s) of theemitting plasma. We will achieve the above goal by monitoring the Xray emissionof the targets continuously for three rotation periods, in order to test for thepresence of rotational modulation of the coronal emission, and to determine theproperties of the emitting plasma by means of Xray photometry and timeresolvedXray spectroscopy with EPIC. These observations will yield insights into thenature of the magnetic dynamo (e.g., shelltype, alpha^2type, turbulent) atwork in these stars. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]