Formation of Moving Magnetic Features and Penumbral Magnetic Fields with Hinode-SOT - AstrophysicsReportar como inadecuado




Formation of Moving Magnetic Features and Penumbral Magnetic Fields with Hinode-SOT - Astrophysics - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Abstract: Vector magnetic fields of moving magnetic features MMFs are well observedwith the Solar Optical Telescope SOT aboard the Hinode satellite. We focus onthe evolution of three MMFs with the SOT in this study. We found that an MMFhaving relatively vertical fields with polarity same as the sunspot is detachedfrom the penumbra around the granules appeared in the outer penumbra. Thissuggests that granular motions in the outer penumbra are responsible for thedisintegration of the sunspot. Two MMFs with polarity opposite to the sunspotare located around the outer edge of horizontal fields extending from thepenumbra. This is an evidence that the MMFs with polarity opposite to thesunspot are prolongation of penumbral horizontal fields. Radshifts larger thansonic velocity in the photosphere are detected for some of the MMFs withpolarity opposite to the sunspot.



Autor: Masahito Kubo, Kiyoshi Ichimoto, Toshifumi Shimizu, Saku Tsuneta, Yoshinori Suematsu, Yukio Katsukawa, Shin'ichi Nagata, The

Fuente: https://arxiv.org/







Documentos relacionados