Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001apj...556..905s&link_type=abstract
The Astrophysical Journal, Volume 556, Issue 2, pp. 905-911.
Astronomy and Astrophysics
Astronomy
10
Sun: Chromosphere, Sun: Magnetic Fields, Sun: Transition Region
Scientific paper
New observations with NASA's Transition Region and Coronal Explorer (TRACE) spacecraft reveal the location of the unidentified energy source, showing that the main corona heating occurs in a lower corona, at a height not greater than about 16,000 km above the photosphere. To explain these new observations, we present a model of chromospheric loop heating based on our simulation results, which reveal that surface Alfvén waves and upward plasma flows excited from the footpoints of the small-scale magnetic flux tubes can be effectively dissipated through magnetic reconnection near the chromospheric current sheets that may exist near the interaction regions of several magnetic flux tubes.
Sakai Jun-Ichi
Sokolov Igor V.
Takahata A.
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