Velocity fields associated with the magnetic component of solar faculae

Bibcode
1990Ap&SS.170...31S
DOI
10.1007/BF00652640
Sanchez Almeida, J.; Collados, M.; del Toro Iniesta, J. C.
Bibliographical reference

(IAU, European Regional Astronomy Meeting, 11th, La Laguna, Spain, July 3-8, 1989) Astrophysics and Space Science (ISSN 0004-640X), vol. 170, no. 1-2, Aug. 1990, p. 31-39. Research supported by CAICYT.

Advertised on:
8
1990
Number of authors
3
IAC number of authors
0
Citations
5
Refereed citations
5
Description
Theoretical models are developed to account for the asymmetries observed by Stenflo et al. (1984) in the Stokes V profiles of solar faculae. The approximate dependence of Stokes V on magnetic and velocity fields in the line of sight is characterized under the assumption of local thermodynamic equilibrium, and empirical growth curves for the zero-crossing point of Stokes V are constructed. Good agreement between observed and theoretically predicted values is demonstrated for models in which there is no separation between magnetic layers and layers with velocity fields. The strength of the magnetic field increases toward the observer and the downflowing velocity field decreases, with the changes taking place in the same atmospheric layers.
Type
Non-refereed
Solar atmosphere

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