Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-12-10
Astronomy and Astrophysics
Astrophysics
8 pages, 2 b/w figures, submitted to 2nd ARENA Conference on "The Astrophysical Science Cases at Dome C'', H. Zinnecker, H. Ra
Scientific paper
10.1051/eas:0833014
Solar magnetic fields evolve on many time-scales, e.g., the generation, migration, and dissipation of magnetic flux during the 22-year magnetic cycle of the Sun. Active regions develop and decay over periods of weeks. The build-up of magnetic shear in active regions can occur within less than a day. At the shortest time-scales, the magnetic field topology can change rapidly within a few minutes as the result of eruptive events such as flares, filament eruptions, and coronal mass ejections. The unique daytime seeing characteristics at Dome C, i.e., continuous periods of very good to excellent seeing during almost the entire Antarctic summer, allow us to address many of the top science cases related to the evolution of solar magnetic fields. We introduce the Advanced Solar Photometric Imager and Radiation Experiment and present the science cases for synoptic solar observations at Dome C. Furthermore, common science cases concerning the solar-stellar connection are discussed in the context of the proposed International Concordia Explorer Telescope.
Denker Carsten
Strassmeier Klaus G.
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