Centre-to-limb variation of the Stokes V asymmetry in solar magnetic flux tubes

Details Centre-to-limb variation of the Stokes V asymmetry in solar magnetic flux tubes Centre-to-limb variation of the Stokes V asymmetry in solar magnetic flux tubes

Feb 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...268..736b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 268, no. 2, p. 736-748.

Astronomy and Astrophysics

Astrophysics

36

Magnetic Flux, Solar Magnetic Field, Astronomical Models, Radiative Transfer, Spectral Line Width, Velocity Distribution

Scientific paper

The center-to-limb variation (CLV) of synthetic Stokes V line profiles of the spectral lines Fe 15250.22 A and Fe I 5083.35 A is computed and compared with observations. The basic elements of the hydromagnetic model used to calculate the Stokes V profiles consist of a vertical cylindrical flux tube surrounded by a field-free plasma in stationary motion with a downflow along the tube boundary and an upflow further away from it. It is shown that an array of such magnetic flux tubes reproduces the peculiar observed CLV of the Stokes V asymmetry, in particular the sign reversal of the asymmetry near the limb. We determine a minimum number of model components needed for the reproduction of the Stokes V area asymmetry and study the influence of various free model parameters on it. Satisfactory agreement between synthetic and observed Stokes V profiles can only be achieved by including a considerable amount of realism into the model such as a granular temperature-velocity correlation. This suggests that the basic picture of magnetic structures in the quiet solar network and active region plages is correct.

Affiliated with

Also associated with

No associations

Rating

Centre-to-limb variation of the Stokes V asymmetry in solar magnetic flux tubes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Centre-to-limb variation of the Stokes V asymmetry in solar magnetic flux tubes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Centre-to-limb variation of the Stokes V asymmetry in solar magnetic flux tubes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1271834