Physics
Scientific paper
Feb 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977izssr..41q.252v&link_type=abstract
(Mezhdunarodnyi Seminar po Aktivnym Protsessam na Solntse i Probleme Solnechnykh Neitrino, 8th, Leningrad, USSR, Sept. 25-27, 19
Physics
Radiative Transfer, Solar Corona, Solar Flares, Solar X-Rays, Energy Dissipation, Heat Balance, Skylab Program, Solar Activity, Solar Magnetic Field, Stellar Models
Scientific paper
Soft X-ray images of the sun obtained with the S-056 telescope aboard Skylab are used to investigate physical conditions in the X-ray-emitting coronal plasma during flarelike events. Temporal and spatial variations in the density and temperature of the main X-ray source during a flare are determined along with the total radiative energy emitted by an observed loop system. Models for heat sources and energy balance are analyzed, radiative as well as conductive energy losses are computed, and an attempt is made to develop a self-consistent model of the observed X-ray event. It is concluded that: (1) loop tips constitute the source of the maximum X-ray flux; (2) conductive losses exceed radiative losses by several orders of magnitude; (3) energy (and possibly new matter) is added at loop tips; and (4) the most intense X-ray structures are located in areas where the magnetic field has a small radius of curvature and the axis of a loop sequence changes direction.
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