Effects of Superthermal Electrons in The Young Earth Atmosphere and Its Habitability
Abstract
In this presentation, we use the Fokker-Plank code to model the effect of intensive short-wavelength (X-rays to UV band) emission from the young Sun on Earth's atmosphere. Our simulations include the photoionization processes of the Earth's atmosphere forming a population of superthermal electrons (E<600 eV), the kinetic effects of their propagation associated and their contribution in ionosphere-magnetosphere energy redistribution. We also evaluated associated non-thermal atmospheric mass loss due to induced ambipolar electric field and its effect on the habitability of early Earth.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2014
- Bibcode:
- 2014AGUFMSM51B4250A
- Keywords:
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- 7827 Kinetic and MHD theory;
- 7833 Mathematical and numerical techniques;
- 7846 Plasma energization;
- 7867 Wave/particle interactions