The source of solar high-frequency acoustic modes - Theoretical expectations

Details The source of solar high-frequency acoustic modes - Theoretical expectations The source of solar high-frequency acoustic modes - Theoretical expectations

Apr 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...371..396b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 371, April 10, 1991, p. 396-401. NASA-supported research.

Computer Science

Sound

45

Acoustic Frequencies, Solar Atmosphere, Solar Oscillations, Sound Waves, High Frequencies, Spatial Resolution, Wave Propagation

Scientific paper

The source exciting the solar p-modes is likely to be acoustic noise generated in the top part of the sun's convection zone. If so, then simple arguments suggest that most of the emitted energy may come from rare localized events that are well separated from one another in space and time. This note describes the acoustic emission that would be expected from such events, based on a ray-theory analysis. Most of the acoustic energy is found to emerge very close to the source, so that observations to identify emission events will require high spatial resolution.

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