On the polarization of emission of moustaches observed near the solarlimb.
Abstract
H-alpha spectral observations of moustaches carried out with a linear polarization analyzer are presented with attention given to four cases in which the moustaches assume different forms in the orthogonal polarization spectra: these differences are manifested either in moustache structure or luminosity. In all cases, the greatest differences can be seen in the red wing of the H-alpha line; this finding suggests that there may be asymmetry in the polarization structure. The degree of polarization of moustache emission is high (up to 24 percent), exceeding theoretical resonance scattering values. In close moustache pairs, only the weak component is polarized. It is suggested that the emission only during the brightening stage. For polarized for moustaches or of their finely structured elements is polarized only during the brightening stage. For polarized moustache emission, electric vector oscillations move predominantly in the direction perpendicular to the magnetic field.
- Publication:
-
Izvestiya Ordena Trudovogo Krasnogo Znameni Krymskoj Astrofizicheskoj Observatorii
- Pub Date:
- 1985
- Bibcode:
- 1985IzKry..73....3B
- Keywords:
-
- Astronomical Photometry;
- Emission Spectra;
- H Alpha Line;
- Linear Polarization;
- Solar Limb;
- Brightness Distribution;
- Fine Structure;
- Solar Physics;
- Polarization:Solar Moustaches;
- Solar Moustaches:Polarization