Multiple scattering of acoustic waves by a pair of uniformly magnetized flux tubes

Details Multiple scattering of acoustic waves by a pair of uniformly magnetized flux tubes Multiple scattering of acoustic waves by a pair of uniformly magnetized flux tubes

Oct 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...379..758b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 379, Oct. 1, 1991, p. 758-775.

Computer Science

Sound

15

Acoustic Scattering, Magnetosonic Resonance, Sound Waves, Sunspots, Coherent Scattering, Helioseismology, Incoherent Scattering, Magnetic Flux, Solar Magnetic Field, Solar Oscillations

Scientific paper

The interaction of an acoustic plane wave with a pair of uniformly magnetized flux tubes of circular cross section is considered to determine whether sunspot seismology can distinguish between the competing monolithic flux-tube and spaghetti sunspot models. It is shown that this interaction falls within one of three distinct categories depending upon the separation of the magnetic flux tubes and their individual scattering strengths. Estimates suggest that the interaction of the solar acoustic oscillations with a spaghetti sunspot will almost surely show coherent phasing of the scattered waves and will probably exhibit multiple scattering effects.

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