EUV photons (100-912 Å) drive atmospheric mass loss, and an accurate accounting of the EUV in a planet's energy budget is essential. Direct EUV observations of exoplanet host stars would require a new, dedicated observatory. Archival observations from EUVE and models are insufficient to accurately characterize EUV spectra of exoplanet host stars.
Bulletin of the American Astronomical Society
- Pub Date:
- May 2019
- Astrophysics - Earth and Planetary Astrophysics
- Science white paper submitted to the Astro2020 Decadal Survey. 7 pages, 2 figures