Seismic tomography of the near solar surface

L. Gizon; T. L. Duvall; R. M. Larsen

doi:10.1007/BF02702420

Seismic tomography of the near solar surface

L. Gizon, T. L. Duvall, R. M. Larsen

Center for Space Science

Research output: Contribution to journal › Article › peer-review

Abstract

Surface gravity waves have been used to probe flows in the two megameters beneath the photosphere using the techniques of time-distance helioseismology. The results suggest that supergranule velocities are smaller than at the surface. The outward flow outside a sunspot penumbra (the moat) is observed, as is an inward flow in the region beyond the moat.

Original language	English (US)
Pages (from-to)	339-342
Number of pages	4
Journal	Journal of Astrophysics and Astronomy
Volume	21
Issue number	3-4
DOIs	https://doi.org/10.1007/BF02702420
State	Published - 2000

Keywords

Helioseismology
Sunspots
Supergranulation

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1007/BF02702420

Cite this

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title = "Seismic tomography of the near solar surface",

abstract = "Surface gravity waves have been used to probe flows in the two megameters beneath the photosphere using the techniques of time-distance helioseismology. The results suggest that supergranule velocities are smaller than at the surface. The outward flow outside a sunspot penumbra (the moat) is observed, as is an inward flow in the region beyond the moat.",

keywords = "Helioseismology, Sunspots, Supergranulation",

author = "L. Gizon and Duvall, {T. L.} and Larsen, {R. M.}",

year = "2000",

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AU - Gizon, L.

AU - Duvall, T. L.

AU - Larsen, R. M.

PY - 2000

Y1 - 2000

N2 - Surface gravity waves have been used to probe flows in the two megameters beneath the photosphere using the techniques of time-distance helioseismology. The results suggest that supergranule velocities are smaller than at the surface. The outward flow outside a sunspot penumbra (the moat) is observed, as is an inward flow in the region beyond the moat.

AB - Surface gravity waves have been used to probe flows in the two megameters beneath the photosphere using the techniques of time-distance helioseismology. The results suggest that supergranule velocities are smaller than at the surface. The outward flow outside a sunspot penumbra (the moat) is observed, as is an inward flow in the region beyond the moat.

KW - Helioseismology

KW - Sunspots

KW - Supergranulation

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DO - 10.1007/BF02702420

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JO - Journal of Astrophysics and Astronomy

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IS - 3-4

ER -

Seismic tomography of the near solar surface

Abstract

Keywords

ASJC Scopus subject areas

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