The Internal Dynamics and Magnetism of the Sun -- the Perspective from Local Helioseismology (Invited)

Details The Internal Dynamics and Magnetism of the Sun -- the Perspective from Local Helioseismology (Invited) The Internal Dynamics and Magnetism of the Sun -- the Perspective from Local Helioseismology (Invited)

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmsh11b..03b&link_type=abstract

American Geophysical Union, Fall Meeting 2009, abstract #SH11B-03

Astronomy and Astrophysics

Astrophysics

[7522] Solar Physics, Astrophysics, And Astronomy / Helioseismology, [7544] Solar Physics, Astrophysics, And Astronomy / Stellar Interiors And Dynamo Theory, [7594] Solar Physics, Astrophysics, And Astronomy / Instruments And Techniques

Scientific paper

The application of innovative local helioseismic methods to solar observations made with GONG, MDI, and other instruments over the past two decades has shed light on dynamical and magnetic processes in the solar interior. The community now stands poised for the onslaught of new data of unprecedented quality and quantity from the SDO mission. However, we are already substantially benefiting from the appearance of sophisticated numerical analyses and artificial data products. I will touch upon three problems in local helioseismology which are subject to substantive renewed efforts: the deep meridional circulation, the detection of magnetic flux prior to its appearance at the photosphere, and the subsurface nature of sunspots. All three problems pose major challenges, but there is considerable hope for breakthroughs within the next few years. DCB acknowledges support from NSF grant AST-0406225; NASA contracts NNH09CE41C, NNG07EI51C, and NNH07CD25C; and a subcontract from the NASA sponsored HMI project at Stanford University.

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