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- Title
Recovery of a Large-Scale Magnetic Field Using the Stokes I-Profile Approximation Method.
- Authors
Tlatov, A. G.; Berezin, I. A.
- Abstract
This paper presents a procedure for reconstructing the longitudinal magnetic field from observational data of the complete profile of spectral magnetic lines. The method is based on a fast search algorithm for curve fitting for complete profiles of magnetically sensitive lines 6301.5 Å and 6302.5 Å. The magnetic field is calculated as the distance between the centers of the I-profiles of different polarization components. The centers are defined as the midpoints of the Gaussians approximating the I + V, I – V profiles. This approach makes it possible to carry out calculations rather quickly. The presented method makes it possible to reduce the noise in maps of a large-scale magnetic field and improve the accuracy of measurements, primarily of weak fields. The method has been tested to reconstruct the large-scale magnetic field from observations with the STOP full-disk magnetograph telescope (Kislovodsk) in 2014–2022.
- Subjects
MAGNETIC fields; SPECTRAL lines; SEARCH algorithms; CURVE fitting; ZEEMAN effect
- Publication
Geomagnetism & Aeronomy, 2023, Vol 63, Issue 8, p1180
- ISSN
0016-7932
- Publication type
Article
- DOI
10.1134/S0016793223080248