KINK WAVES IN AN ACTIVE REGION DYNAMIC FIBRIL
A. PietarilaNational Solar Observatory, 950 N. Cherry Avenue, Tucson, AZ 85719, USAR. Aznar CuadradoMax-Planck-Institute for Solar System Research, Max-Planck-Strasse 2, 37191 Katlenburg-Lindau, GermanyJ. HirzbergerMax-Planck-Institute for Solar System Research, Max-Planck-Strasse 2, 37191 Katlenburg-Lindau, GermanyS. K. SolankiMax-Planck-Institute for Solar System Research, Max-Planck-Strasse 2, 37191 Katlenburg-Lindau, Germany
2011en
ABI
Annotatsiya
We present high spatial and temporal resolution Ca II 8542 observations of a kink wave in an on-disk chromospheric active region fibril. The properties of the wave are similar to those observed in off-limb spicules. From the observed phase and period of the wave we determine a lower limit for the field strength in the chromospheric active region fibril located at the edge of a sunspot to be a few hundred Gauss. We find indications that the event was triggered by a small-scale reconnection event higher up in the atmosphere.
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