We review the current status of local helioseismology, covering both theoretical and observational results. After a brief introduction to solar oscillations and wave propagation through inhomogeneous media, we describe the main techniques of local helioseismology: Fourier-Hankel decomposition, ring-diagram analysis, time-distance helioseismology, helioseismic holography, and direct modeling. We discuss local helioseismology of large-scale flows, the solar-cycle dependence of these flows, perturbations associated with regions of magnetic activity, and solar supergranulation.
Keywords: Helioseismology
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Since a Living Reviews in Solar Physics article may evolve over time, please cite the access <date>, which uniquely identifies the version of the article you are referring to:
Laurent Gizon and Aaron C. Birch,
"Local Helioseismology",
Living Rev. Solar Phys. 2, (2005), 6. URL (cited on <date>):
http://www.livingreviews.org/lrsp-2005-6
| ORIGINAL | http://www.livingreviews.org/lrsp-2005-6 |
|---|---|
| Title | Local Helioseismology |
| Author | Laurent Gizon / Aaron C. Birch |
| Date | accepted 13 May 2005, published 15 November 2005 |