On the magnetic reconnection of electric currents in solar flaresстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:The question on a role of the electric currents distributed
over the volume of active regions is considered from the
point of view of the solar flare physics.
It is suggested to include the electric currents in a
topological model of magnetic field in an active region.
With application to the M7/1N flare on 27 April 2006,
there are obtained the estimates of characteristic
values of the mutual induction coefficient and the energy
of interaction of the coronal electric currents flowing along
magnetic-field loops.
It is shown that, if the currents do contribute significant
energy to the flare, then they should be observable in the
photospheric magnetic fields.
Depending on orientation of distributed currents, they help
or hinder reconnection in a current layer at a separator
during the flare.
Asymmetric reconnection of the current is accompanied by
their interruption and an inductive change of energy.
Reconnection of currents in flares significantly differs
from the ordinary instability of coalescence of magnetic
islands in current layers.
In order to investigate quantitatively the role of
distributed currents in solar flares, there are needed
the high accuracy measurements of magnetic field in
active regions.