Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010apj...713l...6c&link_type=abstract
The Astrophysical Journal Letters, Volume 713, Issue 1, pp. L6-L10 (2010).
Astronomy and Astrophysics
Astronomy
4
Magnetic Reconnection, Magnetohydrodynamics: Mhd, Sun: Chromosphere, Sun: Magnetic Topology, Sun: Photosphere
Scientific paper
Magnetic reconnection is a process in which field-line connectivity changes in a magnetized plasma. On the solar surface, it often occurs with the cancellation of two magnetic fragments of opposite polarity. Using the 1.6 m New Solar Telescope, we observed the morphology and dynamics of plasma visible in the Hα line, which is associated with a canceling magnetic feature (CMF) in the quiet Sun. The region can be divided into four magnetic domains: two pre-reconnection and two post-reconnection. In one post-reconnection domain, a small cloud erupted, with a plane-of-sky speed of 10 km s-1, while in the other one, brightening began at points and then tiny bright loops appeared and subsequently shrank. These features support the notion that magnetic reconnection taking place in the chromosphere is responsible for CMFs.
Abramenko Valentina
Ahn Kyungjin
Andic Aleksandra
Cao Weiqun
Chae Jongchul
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