Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975a%26a....42..213l&link_type=abstract
Astronomy and Astrophysics, vol. 42, no. 2, Aug. 1975, p. 213-220.
Astronomy and Astrophysics
Astrophysics
55
Astronomical Models, Energy Spectra, Solar Corona, Temperature Gradients, X Ray Spectra, Atmospheric Models, Chromosphere, Energy Dissipation, Line Spectra, Magnetic Dipoles, Magnetic Field Configurations, Pressure Distribution, Radiant Flux Density, Solar Activity, Solar Magnetic Field, Solar X-Rays, Vertical Distribution
Scientific paper
The energy balance which is established in a vertical cylinder of constant pressure between the radiated energy, the energy supplied from below and dissipated over one typical scale height 1/k, and the energy flux conducted along the temperature gradient is investigated. A model of temperature versus height is obtained. The emission measure versus temperature distribution is evaluated and compared with observation. A coronal active region is simulated by assembling a large number of such tubes shaped along the lines of force of a dipole field assuming that the flux of the supplied energy is proportional to the magnetic field intensity. Comparison is made with experimental data on several X-ray emission lines.
Landini Massimo
Monsignori Fossi Brunella C.
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