2174126

Target RA (J2000): 289.230225 and deg Target Dec (J2000): 5.16890 and deg Gaia GMag: 8.1 Programme ID: CH_PR100018 Programme Manager: PAGANO PI of observing programme: Benz Title of programme: ANCILLARY SCIENCE - Low level variability on short time scales of Mdwarfs Abstract: This is a filler program aimimg to characterize the stellar noise (mainly microflares dips and short lasting oscillations) at short time scales for Mdwarfs of different level of variability and other active late type stars hosting exoplanets. Being interested to micro-variability on time scales from few seconds to a hours even one CHEOPS orbit can get useful data. The measured parameters - mean variance pooled variaance flares/microflares occurence rate dips occurence rate power spectrum - will be related to stellar properties (Teff H-alpha Ca II H and K X-ray and UV fluxes). Selected targets spans subclasess of late type stars with different level of activity. They have been selected among those with already know stellar properties (typicall surveyed for exoplanet detection) and include all dM / late K and TTau with planets. [truncated! Please see actual data for full text]