086019

Based on a dedicated XMM-Newton monitoring campaign started in 2015 we have recently revealed an X-ray activity cycle on the young solar-like star eps Eri. From 2014 - 2017 the X-ray and the Ca II emission of eps Eri changed in a syn- chronized way with the 3-yr period of the Ca S-index that dominated the chromo- spheric variability of the star for the last two decades. Then comma in 2018 comma a drastic change set indoublePoint Both S-index and X-ray emission appear to change now on about half the previous timescale comma the S-index is significantly lower than before comma and whether X-ray and Ca II variability are still in phase is unclear. We propose to examine the long-term evolution of epsEri.s X-ray cycle during an important change in its activity state with continued monitoring for 4 x 5 ks in AO19.