Recent Progress in Detecting Meridional Flows Deep within the Sun

Details Recent Progress in Detecting Meridional Flows Deep within the Sun Recent Progress in Detecting Meridional Flows Deep within the Sun

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmsh11b..10h&link_type=abstract

American Geophysical Union, Fall Meeting 2009, abstract #SH11B-10

Astronomy and Astrophysics

Astrophysics

[7522] Solar Physics, Astrophysics, And Astronomy / Helioseismology, [7536] Solar Physics, Astrophysics, And Astronomy / Solar Activity Cycle

Scientific paper

The solar meridional flow is observed to be primarily poleward in and immediately below the photosphere. In order to satisfy the conservation of mass, there must be an equatorward return flow deep within the sun. Helioseismology has so far been unable to detect this flow, but the continual accumulation of high-quality data from SOHO/MDI and GONG over 14 years has improved the chances of observing the characteristics of the flow, which are vital for modern flux-transport dynamo models. Here we report on the latest results of inversions of deep north-south travel-time differences and their implications.

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