Evolution of Small-Scale Magnetic Elements in the Vicinity of Granular-Sized Swirl Convective Motions

被引:0
|
作者
S. Vargas Domínguez
J. Palacios
L. Balmaceda
I. Cabello
V. Domingo
机构
[1] Universidad Nacional de Colombia,Observatorio Astronómico Nacional
[2] Universidad de Alcalá,Space Research Group
[3] ICATE/CONICET-UNSJ,Space Weather, Departamento de Física y Matemáticas
[4] INPE,GACE, Image Processing Laboratory (IPL)
[5] Universidad de Valencia,Facultad Regional de Mendoza
[6] Universidad Tecnológica Nacional,undefined
来源
Solar Physics | 2015年 / 290卷
关键词
Sun: convection; Sun: granulation; Sun: photosphere; Sun: magnetic fields;
D O I
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中图分类号
学科分类号
摘要
Advances in solar instrumentation have led to widespread use of time series to study the dynamics of solar features, especially at small spatial scales and at very fast cadences. Physical processes at such scales are important as building blocks for many other processes occurring from the lower to the upper layers of the solar atmosphere and beyond, ultimately for understanding the larger picture of solar activity. Ground-based (Swedish Solar Telescope) and space-borne (Hinode) high-resolution solar data are analyzed in a quiet-Sun region that displays negative-polarity small-scale magnetic concentrations and a cluster of bright points observed in G-band. The region is characterized by two granular-sized convective vortex-type plasma motions, one of which appears to be affecting the dynamics of magnetic features and bright points in its vicinity and is therefore the main target of our investigations. We followed the evolution of the bright points, intensity variations at different atmospheric height, and the magnetic evolution for a set of interesting selected regions. We describe the evolution of the photospheric plasma motions in the region near the convective vortex and some plausible cases for convective collapse detected in Stokes profiles.
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页码:301 / 319
页数:18
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