The Hanle Effect in Atomic and Molecular Lines: A New Look at the Sun's Hidden Magnetism

Bibcode
2006ASPC..358..269T
Trujilo-Bueno, J.; Asensio Ramos, A.; Shchukina, N.
Bibliographical reference

Solar Polarization 4, ASP Conference Series, Vol. 358, Proceedings of the conference held 19-23 September, 2005, in Boulder, Colorado, USA. Edited by R. Casini and B. W. Lites, p.269

Advertised on:
12
2006
Number of authors
3
IAC number of authors
0
Citations
40
Refereed citations
24
Description
This paper reviews some of the most recent advances in the application of the Hanle effect to solar physics, and how these developments are allowing us to explore the magnetism of the photospheric regions that look ``empty'' in solar magnetograms--that is, the Sun's ``hidden'' magnetism. In particular, we show how a joint analysis of the Hanle effect in atomic and molecular lines indicates that there is a vast amount of hidden magnetic energy and unsigned magnetic flux localized in the (intergranular) downflowing regions of the quiet solar photosphere, carried mainly by tangled fields at sub-resolution scales with strengths between the equipartition field values and ˜1 kG. This article combines in one contribution Trujillo Bueno's invited keynote paper and the contributed papers by Asensio Ramos & Trujillo Bueno and by Shchukina & Trujillo Bueno.
Type
Non-refereed

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