2003Unpublished venueRequires access

The Rotation Of The Deep Solar Layers

S. Couvidat, R. A. García, S. Turck-chièze, T. Corbard, C. J. Henney

Open publisher page 85 citations

Abstract

From the analysis of low-order GOLF+MDI sectoral modes (ℓ ≤ 3, 6 ≤ n ≤ 15, |m | = ℓ) and LOWL data (ℓ> 3), we derive the radial rotation profile assuming no latitudinal dependance in the solar core. These low-order acoustic modes contain the most statistically significant information about rotation of the deepest solar layers and should be least influenced by internal variability associated with the solar dynamo. After correction of the sectoral splittings for their contamination by the rotation of the higher latitudes, we obtain a flat rotation profile down to 0.2 R⊙.

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What this paper is about

From the analysis of low-order GOLF+MDI sectoral modes (ℓ ≤ 3, 6 ≤ n ≤ 15, |m | = ℓ) and LOWL data (ℓ> 3), we derive the radial rotation profile assuming no latitudinal dependance in the solar core. These low-order acoustic modes contain the most statistically significant information about rotation of the deepest solar layers and should be least influenced by internal variability associated with the solar dynamo. After correction of the sectoral splittings for their contamination by the rotation of the higher latitudes, we obtain a flat rotation profile down to 0.2 R⊙.

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Available abstract

From the analysis of low-order GOLF+MDI sectoral modes (ℓ ≤ 3, 6 ≤ n ≤ 15, |m | = ℓ) and LOWL data (ℓ> 3), we derive the radial rotation profile assuming no latitudinal dependance in the solar core. These low-order acoustic modes contain the most statistically significant information about rotation of the deepest solar layers and should be least influenced by internal variability associated with the solar dynamo. After correction of the sectoral splittings for their contamination by the rotation of the higher latitudes, we obtain a flat rotation profile down to 0.2 R⊙.

Key concepts: Solar rotation, Physics, Rotation (mathematics), Dynamo, Solar physics, Latitude, Astrophysics, Helioseismology

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