Satellite observed thermospheric impact of solar flares and possible implications for the early Earth
- Autor(en)
- Martin Pfleger, Sandro Krauss, Walter Hausleitner, Helmut Lammer, B. Fichtinger, Herbert I. M. Lichtenegger
- Abstrakt
The evolution of planetary atmospheres depends sensitively on the
radiation and particle environment of the planet's hoststar. Atmospheric
escape rates are strongly related especially to the soft X-ray (SXR) and
extreme and far ultraviolett (EUV and FUV) parts of the solar spectrum.
By means of observational data from low Earth orbiting (LEO) satellites
it is possible to study the response of the earths thermosphere on
enhanced EUV radiation events caused by solar flares. This enables one
to estimate exobase temperatures and thermospheric particle densities
under different radiation environments. So the flare events can be used
as proxies for early Earth studies and for Earth-like atmospheres of
potential exoplanets which are exposed to higher stellar EUV fluxes.
- Organisation(en)
- Institut für Astrophysik
- Externe Organisation(en)
- Österreichische Akademie der Wissenschaften (ÖAW)
- Journal
- Abstracts of the EPSC-DPS
- Band
- 8
- Seiten
- 721
- Publikationsdatum
- 09-2013
- Peer-reviewed
- Ja
- ÖFOS 2012
- 103003 Astronomie
- Link zum Portal
- https://ucrisportal.univie.ac.at/de/publications/9884b264-384c-4f4e-96fa-fbf612075e5c