Seismic tomography of the near solar surface

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

Research output: Contribution to journalArticle

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 languageEnglish (US)
Pages (from-to)339-342
Number of pages4
JournalJournal of Astrophysics and Astronomy
Volume21
Issue number3-4
DOIs
StatePublished - Jan 1 2000

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seismic tomography
tomography
penumbras
helioseismology
photosphere
sunspots
gravity waves
sunspot
gravity wave
surface wave
probe
probes

Keywords

  • Helioseismology
  • Sunspots
  • Supergranulation

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Seismic tomography of the near solar surface. / Gizon, Laurent; Duvall, T. L.; Larsen, R. M.

In: Journal of Astrophysics and Astronomy, Vol. 21, No. 3-4, 01.01.2000, p. 339-342.

Research output: Contribution to journalArticle

Gizon, Laurent ; Duvall, T. L. ; Larsen, R. M. / Seismic tomography of the near solar surface. In: Journal of Astrophysics and Astronomy. 2000 ; Vol. 21, No. 3-4. pp. 339-342.
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