Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001a%26at...20..439p&link_type=abstract
Astronomical and Astrophysical Transactions, vol. 20, Issue 3, pp.439-444
Astronomy and Astrophysics
Astronomy
Sun, Magnetic Fields, Stokes Parameters
Scientific paper
With the purpose of gaining a better understanding of large-scale solar magnetic fields, we investigated some of the main properties of their fine structure. The study was based on using stokesmeter observations of the Stokes I- and V-parameters in the line of FeI 525.02 nm from the STOP telescope of the Sayan observatory covering a time interval from April to November 1999. Using extensive statistical material (totaling over 120 full-disk stokesgrams with a resolution of 2 arc min) we determined the most informative parameters of the V-profiles such as the asymmetry in amplitudes and areas, and Doppler shifts with respect to the I-profiles of the observed spectral line. The results are compared with findings reported by other authors.
Demidov Michael L.
Grigoryev Victor M.
Peshcherov V. S.
Zhigalov V. V.
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