On model calculations of the S-component inside and outside of sunspots

Title:

On model calculations of the S-component inside and outside of sunspots

Creator:

Krüger, A., Hildebrandt, J., Mann, G., Borovik, V. N., and Korzhavin, A. N.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:247ea563-bdf9-4550-a6d8-1942dd9bfde2
uuid:247ea563-bdf9-4550-a6d8-1942dd9bfde2

Subject:

heliophysics, S-component solar radio emission, and model calculations

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

This paper reports on some consequences of a comparison between model calculations of the S-component solar radio emission and observations of active regions at different wavelengths in the microwave range. Calculations of the transfer of the Scomponent emission were carried out on the base of horizontally averaged semi-empiricalv models of the solar atmosphere above sunspots and plage regions consistent with optical and EUV observations and account for Coulomb bremsstrahlung and gyromagnetic emission in dipole-like or force-free extrapolated magnetic field configurations, While the mean characteristics are quite in accordance, discrepancies between observations and calculation arise mainly with respect to fine structures, Considering such discrepancies, (i) possible reasons for an obvious lack of observed ring structures of S-component sources above sunspots are discussed. (ii) Subtelescopic fine structures in plage regions are predicted whereas bright plage elemente are assuraed to be embedded in a quasi-quiet background. (iii) Different kinds of loop emissions are considered, among them strange cases of persistent "hot" loop emission connected with emerging magnetic flux regions.

Language:

Czech

Rights:

http://creativecommons.org/publicdomain/mark/1.0/
policy:public

Coverage:

271-274

Source:

Publications of the Astronomical Institute of the Academy of Sciences of the Czech Republic | 1987 Volume:63-70 | Number:66

Harvested from:

CDK

Metadata only:

false