Observation of impulsive acoustic events and the excitation of solar oscillations

Details Observation of impulsive acoustic events and the excitation of solar oscillations Observation of impulsive acoustic events and the excitation of solar oscillations

May 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...408l..57r&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 408, no. 1, p. L57-L60.

Astronomy and Astrophysics

Astronomy

32

Acoustic Excitation, Solar Atmosphere, Solar Convection (Astronomy), Solar Oscillations, Lamb Waves, Plasma Turbulence

Scientific paper

The 5 minute solar oscillation has been exploited in numerous seismic studies in which internal properties of the sun have been inferred. It is generally regarded that these modes are excited by turbulent convection in the sun's outermost layers. We observe the oscillatory wakes caused by impulsive events, related to those described in 1909 by Lamb. These correspond to the events modeled by Goode et al. (1992) which they associate with excitation of the global 5-min oscillations.

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