Spectropolarimetry of solar faculae - High spatial resolution results

Bibcode
1990A&A...227..591D
del Toro Iniesta, J. C.; Collados, M.; Sanchez Almeida, J.; Semel, M.
Referencia bibliográfica

Astronomy and Astrophysics (ISSN 0004-6361), vol. 227, no. 2, Jan. 1990, p. 591-599. Research supported by the Accion Integrada Hispano-Francesa and CAICYT.

Fecha de publicación:
1
1990
Número de autores
4
Número de autores del IAC
3
Número de citas
13
Número de citas referidas
13
Descripción
A new method to measure the magnetic field strength of small-scale solar magnetic concentrations is presented. It is based on the center of gravity method (Semel, 1967), is independent of radiative transfer calculations and only observable parameters are needed. This method also provides parameters like filling factor (area fraction occupied by the tubes), continuum intensity contrast between flux tubes and their surroundings, in a two-component model scheme. The method is applied to spectropolarimetric high spatial resolution data. Local variations of the above parameters inside single faculae are found. This result suggests some indications about flux tube evolution. A comparison with low spatial resolution results is also made.
Tipo
Con árbitro
Campos magnéticos
Polarimetría
Transferencia radiativa

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