  High-energy irradiation is a driver for atmospheric evaporation and mass loss
in exoplanets. This work is based on data from eROSITA, the soft X-ray
instrument aboard SRG (Spectrum Roentgen Gamma) mission, as well as archival
data from other missions, we aim to characterise the high-energy environment of
known exoplanets and estimate their mass loss rates. We use X-ray source
catalogues from eROSITA, XMM-Newton, Chandra and ROSAT to derive X-ray
luminosities of exoplanet host stars in the 0.2-2 keV energy band with an
underlying coronal, i.e. optically thin thermal spectrum. We present a
catalogue of stellar X-ray and EUV luminosities, exoplanetary X-ray and EUV
irradiation fluxes and estimated mass loss rates for a total of 287 exoplanets,
96 among them being characterised for the first time from new eROSITA
detections. We identify 14 first time X-ray detections of transiting exoplanets
that are subject to irradiation levels known to cause observable evaporation
signatures in other exoplanets, which makes them suitable targets for follow-up
observations.
