084345

We propose to continue our XMM-Newton monitoring of the young solar analog epsilon Eri. So far only one X-ray cycle has been found on a star resembling the young Sun comma iota Hor openPar600Myr comma SpT G0VclosePar. Its X-ray cycle is remarkably one of the shortest dynamo cycles known to date openPar1.6 yrsclosePar comma the only X-ray cycle identified so far on a star with high chromospheric activity level. Our target comma epsilon Eri resembles iota Hor openParyoung age comma short calcium cycle comma high activityclosePar comma and our XMM-Newton measurements since AO14 suggest X-ray variability correlated with the known 3-yr Ca II cycle comma possibly with an anticipated rise phase during the last cycle. We ask for two snapshots in AO18 openPar2 x 5 ksecclosePar to be combined with our previous data and the continued Ca II monitoring of the star.