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Statistical Study on the Nature of Solar-Flux Emergence

Shibata, Kazunari; Ichimoto, Kiyoshi; Kitai, Reizaburo +1 more

We studied 101 flux emergence events ranging from small ephemeral regions to large emerging flux regions that were observed with the Hinode Solar Optical Telescope filtergram. We investigated how the total magnetic flux of the emergence event controls the nature of emergence. To determine the modes of emergences, horizontal velocity fields of the …

Observations of Plasma Blob Ejection from a Quiescent Prominence by Hinode Solar Optical Telescope

Isobe, Hiroaki; Watanabe, Hiroko; Hillier, Andrew

We report findings from 0''.2 resolution observations of the 2007 October 03 quiescent prominence observed with the Solar Optical Telescope on the Hinode satellite. The observations show clear ejections from the top of the quiescent prominence of plasma blobs. The ejections, originating from the top of prominence threads, are impulsively accelerat…

Running Umbral Waves Observed with Hinode

Liang, Hongfei; Li, Haidong; Zhao, Li +2 more

Observations of the main sunspot of NOAA 10953 were carried out with the Solar Optical Telescope aboard Hinode with the line Ca II H on 2007 April 30. The high-cadence (up to 10 s) Ca II H intensity images permit us to elaborate on the nature of umbral oscillations. It is found there are 19 wave sources within the sunspot and 82 running umbral wav…