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Radiative transfer modeling of the Hanle effect in convective atmospheres

Published online by Cambridge University Press:  01 August 2006

Javier Trujillo Bueno
Javier Trujillo Bueno*
Affiliation:
Instituto de Astrofísica de Canarias, 38205 La Laguna, Tenerife, Spain Consejo Superior de Investigaciones Científicas (Spain) email: jtb@iac.es
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Abstract

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This paper summarizes the results of a recent investigation on the Hanle effect in atomic and molecular lines, which indicates that there is a vast amount of “hidden” magnetic energy and (unsigned) magnetic flux in the internetwork regions of the quiet solar photosphere. This hidden magnetic energy, localized in the (intergranular) downflowing plasma of the solar photosphere, is carried mainly by tangled fields at sub-resolution scales with strengths between the equipartition field values and ∼1 kG, and is more than sufficient to compensate the radiative energy losses of the solar outer atmosphere.

Keywords

Sun: magnetic fieldsSun: atmospherepolarizationscatteringconvectionline: formationradiative transferstars: magnetic fields
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S239: Convection in Astrophysics , August 2006 , pp. 44 - 51
Copyright
Copyright © International Astronomical Union 2007

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