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Abstract: Solar magnetic fields evolve on many time-scales, e.g., the generation,migration, and dissipation of magnetic flux during the 22-year magnetic cycleof the Sun. Active regions develop and decay over periods of weeks. Thebuild-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 rapidlywithin a few minutes as the result of eruptive events such as flares, filamenteruptions, and coronal mass ejections. The unique daytime seeingcharacteristics at Dome C, i.e., continuous periods of very good to excellentseeing during almost the entire Antarctic summer, allow us to address many ofthe top science cases related to the evolution of solar magnetic fields. Weintroduce the Advanced Solar Photometric Imager and Radiation Experiment andpresent the science cases for synoptic solar observations at Dome C.Furthermore, common science cases concerning the solar-stellar connection arediscussed in the context of the proposed International Concordia ExplorerTelescope.



Autor: C. Denker 1, K. G. Strassmeier 1 1Astrophysikalisches Institut Potsdam, Germany

Fuente: https://arxiv.org/







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