Helioseismic Measurements Of Meridional Flows In Artificial Data From 3d Numerical Simulations Of Wave Propagation In The Whole Sun

Details Helioseismic Measurements Of Meridional Flows In Artificial Data From 3d Numerical Simulations Of Wave Propagation In The Whole Sun Helioseismic Measurements Of Meridional Flows In Artificial Data From 3d Numerical Simulations Of Wave Propagation In The Whole Sun

May 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011spd....42.1611h&link_type=abstract

American Astronomical Society, SPD meeting #42, #16.11; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

1

Scientific paper

Measuring the structure of the deep solar interior is of considerable interest for understanding how the solar dynamo functions. In particular, the structure of the meridional flow and the depth of its return flow are of significant interest. Detecting such small flows in the deep interior is a challenging problem. Numerical simulations can provide means for testing and calibrating measurement techniques and help increase our confidence in the inferences obtained from observations. We present results from analyzing artificial helioseismology data obtained from numerical simulations of helioseismic wave propagation in the whole 3D solar interior with models of the meridional circulation present in the background state. Two methods - a time-distance helioseismology technique and a Fourier-Legendre decomposition technique - are used in this paper to try to detect and measure this flow from the oscillations at the solar surface.

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