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| Paper: |
Activity tracers |
| Volume: |
40, Inside the Stars, IAU Colloquium 137 |
| Page: |
605 |
| Authors: |
Strassmeier, Klaus G. |
| Abstract: |
The vast variety of solar-like phenomena on other late-type stars, so-called activity tracers, provide an important tool for studying the structure of active stellar atmospheres and their connection to the stellar interior via strong magnetic fields. These 'chromospherically active' stars include single and binary stars as well as pre- and postmain sequence objects and have rapid rotation and deep convective layers in common. They serve as astrophysical laboratories to study the vast phenomenology of activity tracers: starspots, plages, flares, prominences, which might be seen as enhanced analogs of solar activity and could be spatially resolved due to rotationally modulated indicators. In this paper we review the current observational material and discuss its impact on our knowledge of 'active' atmospheres, especially in the context of stellar rotation. |
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