Properties of G-band bright points
Y. Kitakoshi, S. Tsuneta, Y. Katsukawa, J. A. Bonet, S. Vargas
T. Ebisuzaki, and T. Iitaka
We had performed coordinated observations with Swedish, Dutch, and German
telescopes in Canaries and TRACE, and present high resolution observations
of the G-band bright points for two contrasting active regions; a complex
plage region and a simple region. G-band bright points are believed to
represent elemental magnetic fields. Its lifetime is relatively short, and
its shape is complex. Its evolution involves appearance, fragmentation,
merging, elongation, and disappearance. If they faithfully represent
elemental magnetic fields, whole evolution raises a fundamental issue
related to generation and disappearance of solar magnetic fields. We show
various evolution cases of G-band bright points to see their variety,
dependence of shape and distribution on environment by comparing the
contrasting two regions, and relationship with simultaneous polarization
signals.
Correspondence
Yasunori Kitakoshi, Department of Astronomy, University of Tokyo
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