Chromospheric anemone jets as evidence of ubiquitous reconnection.
Science
; 318(5856): 1591-4, 2007 Dec 07.
Article
em En
| MEDLINE
| ID: mdl-18063790
ABSTRACT
The heating of the solar chromosphere and corona is a long-standing puzzle in solar physics. Hinode observations show the ubiquitous presence of chromospheric anemone jets outside sunspots in active regions. They are typically 3 to 7 arc seconds = 2000 to 5000 kilometers long and 0.2 to 0.4 arc second = 150 to 300 kilometers wide, and their velocity is 10 to 20 kilometers per second. These small jets have an inverted Y-shape, similar to the shape of x-ray anemone jets in the corona. These features imply that magnetic reconnection similar to that in the corona is occurring at a much smaller spatial scale throughout the chromosphere and suggest that the heating of the solar chromosphere and corona may be related to small-scale ubiquitous reconnection.
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MEDLINE
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En
Revista:
Science
Ano de publicação:
2007
Tipo de documento:
Article
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Japão