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.
|Titolo:||Small-scale brightenings observed in active regions with SST and Hinode|
|Data di pubblicazione:||2013|
|Appare nelle tipologie:||4.1 Contributo in Atti di convegno|