Magnetic connections of solar formations inside magneto-izolated complexes on observations of arc structures and calculations of magnetic field lines
The magnetic connections of solar formations inside magneto-izolated complexes with areas outside the complexes were determined from the loop structures in the upper chromosphere and corona, as well as from calculations of magnetic field lines. It was found that 65 % of the constructed field lines are closed within complexes or not closed on the solar surface, and 35 % of the field lines intersect the boundary of the complex. Short field lines, intersecting the boundary of the complex, often join the points of low intensity. The ends of the long field lines coincide with ends of the arc structures, higher parts of which are not visible in 17.1 nm line. Short field lines coincide in position with the loop structures at the corona level. It was shown that there are 3 types of magnetic field variations with a height above the complexes.
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