The ambient radiation field of young solar systems: ultraviolet and X-ray emission from T Tauri stars.
Abstract
The authors review the principal results that have emerged from ultraviolet and X-ray observations of T Tauri stars. They emphasize that, as seen in the ultraviolet, T Tauri stars are characterized by strongly enhanced emission. The X-ray emission and its variability, when detected, is also enhanced and indicate of the occurrence of violent flare activity near the stellar surface. The authors discuss possible effects of these enhanced emissions on conditions in early solar systems and the chemical evolution of early planetary atmospheres.
- Publication:
-
Protostars and Planets II
- Pub Date:
- 1985
- Bibcode:
- 1985prpl.conf..386G
- Keywords:
-
- Stellar Radiation;
- T Tauri Stars;
- Ultraviolet Astronomy;
- X Ray Astronomy;
- X Ray Stars;
- Far Ultraviolet Radiation;
- Line Spectra;
- Resonance Lines;
- Stellar Evolution;
- Vertical Distribution;
- Astrophysics;
- Circumstellar Shells:T Tauri Stars;
- Stellar Activity:T Tauri Stars;
- T Tauri Stars:Circumstellar Shells;
- T Tauri Stars:Stellar Activity;
- T Tauri Stars:UV Spectra;
- T Tauri Stars:X Rays;
- UV Spectra:T Tauri Stars;
- X Rays:T Tauri Stars