Waves in the solar photosphere

Details Waves in the solar photosphere Waves in the solar photosphere

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987soph..110..237s&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 110, no. 2, 1987, p. 237-253.

Physics

41

Line Shape, Photosphere, Solar Atmosphere, Spectrum Analysis, Velocity Distribution, Wave Propagation, Digital Filters, Eigenvectors, Kinetic Energy, Solar Oscillations, Spatial Distribution

Scientific paper

Time-sequences of line profile data have been subjected to a unique analysis which produces an amplitude and phase of the velocity and intensity at several line depths for each time sample and spatial point on the Sun. The data have been filtered to pass only the frequencies and spatial wavenumbers of the 5-min band. Yet, a secondary oscillation emerges, the phase of which propagates downward. Empirical eigenfunctions for velocity and intensity are given, and the kinetic energy flux is computed.

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