Seismic tomography of the near solar surface

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

Research output: Contribution to journalArticlepeer-review


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
Issue number3-4
StatePublished - 2000


  • Helioseismology
  • Sunspots
  • Supergranulation

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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