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Title:
Helioseismology of the "Average" Supergranule
Authors:
Birch, Aaron; Duvall, T. L.; Gizon, L.; Jackiewicz, J.
Affiliation:
AA(CoRA, NWRA), AB(Laboratory for Solar and Space Physics NASA/Goddard Space Flight Center), AC(Max-Planck-Institut fuer Sonnensystemforschung, Germany), AD(Max-Planck-Institut fuer Sonnensystemforschung, Germany)
Publication:
American Astronomical Society, SPD meeting #37, #5.05; Bulletin of the American Astronomical Society, Vol. 38, p.224
Publication Date:
06/2006
Origin:
AAS
Bibliographic Code:
2006SPD....37.0505B

Abstract

We show time-distance travel times averaged over roughly ten thousand supergranules. The statistical (realization) noise in these measurements is substantially smaller than the noise associated with a single supergranule. By both forward modeling and inversions we determine the range of subsurface flows that are compatible with these travel times.
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