Time-distance helioseismology in the vicinity of sunspots

Details Time-distance helioseismology in the vicinity of sunspots Time-distance helioseismology in the vicinity of sunspots

Jan 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995apj...438..454d&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 438, no. 1, p. 454-462

Computer Science

Sound

26

Distance, Helioseismology, Stellar Models, Sunspots, Time Measurement, Gravity Waves, Photosphere, Solar Oscillations, Sound Waves

Scientific paper

We use the ray description of acoustic-gravity modes to calculate time-distance diagrams for the quiet Sun and for regions in the vicinity of a sunspot with a monolithic flux-tube structure. Time-distance curves for the quiet Sun match the observations of Duvall et al. In the vicinity of a sunspot these quiet Sun curves split into a family of closely spaced curves. The structure of this bandlike feature is found to be sensitive to the sunspot model and can be a diagnostic of the subsurface geometry of the sunspot flux tube.

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