Nonlinear Least-Squares Analysis of Stokes Profiles
作者： Jose A. Ceja , Stephen R. Walton
DOI: 10.1007/S11207-005-6469-1
关键词: Physics 、 Computational physics 、 Non-linear least squares 、 Observatory 、 Nonlinear system 、 Calibration 、 Field (physics) 、 Optics 、 Asymmetry
摘要: We describe improvements to the calibration and analysis of Fe i 6302.5 A data from San Fernando Observatory Video Spectra-Spectroheliograph (SFO-VSSHG). more effective flat field is generated scales simultaneous Stokes measurements are made equal. Analysis profiles carried out using a moments technique but applied nonlinear least-squares fits data. Typical spectropolarimetric results old new methods compared discussed. Finally, we present asymmetry maps, zero-crossing map, “relative-split” map extracted V profiles.
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