X-rays in the prime of life\: High Energy Dose to Exo-Earths

We propose XMMNewton/EPIC observations of 14 recently discovered nearbyexoplanet hosts. Together, they host a combined 7 earthlike planets and 36known planets overall. Many of the planets are located in or near the presumedhabitable zones of their host stars. The targets cover stellar types from F toM. While a star.s photometric luminosity is important, the high energy UV/Xrayirradiation from the corona is a major driver of photochemistry, upperatmospheric heating, and atmospheric mass loss in exoplanets. We will obtain asnapshot of the current temperatures and fluxes using EPICPN/MOS. These datawill start the process of understanding the possible paths of atmosphericevolution. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]