English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

X‐ray observations of star–planet systems are important to grow our understanding of exoplanets; these observations allow for studies of photoevaporation of the exoplanetary atmosphere, and in some cases even estimations of the size of the outer planetary atmosphere. The German–Russian eROSITA instrument onboard the SRG (Spectrum Roentgen Gamma) mission is performing the first all‐sky X‐ray survey since the 1990s, and provides X‐ray fluxes and spectra of exoplanet host stars over a much larger volume than was accessible before. Using new eROSITA data as well as archival data from XMM‐Newton, Chandra, and ROSAT, we estimate mass‐loss rates of exoplanets under an energy‐limited escape scenario and identify several exoplanets with strong X‐ray irradiation and expected mass loss that are amenable to follow‐up observations at other wavelengths. We model sample spectra using a toy model of an exoplanetary atmosphere to predict what exoplanet transit observations with future X‐ray missions such as Athena will look like and estimate the observable X‐ray transmission spectrum for a typical hot Jupiter‐type exoplanet.

Identifying interesting planetary systems for future X‐ray observations