Statistics – Computation
Scientific paper
Oct 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...204..266g&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 204, no. 1-2, Oct. 1988, p. 266-274.
Statistics
Computation
45
Line Spectra, Stellar Atmospheres, Stellar Magnetic Fields, Stokes Law Of Radiation, Computational Astrophysics, Magnetic Field Configurations, Solar Magnetic Field, Stellar Spectra
Scientific paper
Expressions defining the contribution functions of the 'line depression' Stokes profiles formed in a general magnetic field are derived. Such contribution functions are better suited to determining the heights at which the bound-bound transitions responsible for spectral lines are important than the contribution functions to the 'intensity' Stokes parameters defined by Van Ballegooijen (1985). Expressions defining response functions for both 'intensity' and 'line depression' Stokes parameters are also derived for an arbitrary atmosphere and magnetic field. A code for calculating the various Stokes contribution functions is described and some example calculations are presented. These clearly demonstrate the superior diagnostic value of the contribution functions to the 'line depression' Stokes profiles.
Grossmann-Doerth Ulrich
Larsson Bengt
Solanki Sami K.
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