Bibcode
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
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.