Ca II H brightenings are good proxies of transient phenomena occurring in the solar chromosphere. We analyze temporal series of Ca II H filtergrams taken with SST at extreme high resolution (0.15 arcsec) at different line positions, simultaneously with spectropolarimetric data in the Fe I pair at 630.2 nm and Hinode/SOT data, to study the interactions between flux systems. Ca II H core brightenings have been observed in areas surrounding the sunspot penumbra, following their evolution.
Small-scale brightenings observed in active regions with SST and Hinode
GUGLIELMINO, SALVATORE;ZUCCARELLO, Francesca;
2013-01-01
Abstract
Ca II H brightenings are good proxies of transient phenomena occurring in the solar chromosphere. We analyze temporal series of Ca II H filtergrams taken with SST at extreme high resolution (0.15 arcsec) at different line positions, simultaneously with spectropolarimetric data in the Fe I pair at 630.2 nm and Hinode/SOT data, to study the interactions between flux systems. Ca II H core brightenings have been observed in areas surrounding the sunspot penumbra, following their evolution.File in questo prodotto:
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