Contributed Talk - Splinter eROSITA

Tuesday, 13 September 2022, 15:08   (SFG 0140 / virtual eROSITA)

Prospects for exoplanet research with X-ray observations

Katja Poppenhaeger
Leibniz Institute for Astrophysics Potsdam

While exoplanets are more commonly investigated in the optical or infrared, there are some crucial aspects of exoplanets that can only be studied using X-ray observations. The atmospheric evaporation of exoplanets is driven mainly by X-ray and extreme-UV irradiation that the planet receives from its host star. Furthermore, recent work shows that specific high-energy emission lines of stars can strongly influence the atmospheric spectra of exoplanet we can observe at longer wavelengths. I will show some exciting prospects for exoplanet characteristics we can study uniquely in the X-ray band from the eROSITA to the Athena era.