Some characteristics of the power spectrum of 5-min oscillations of the sun brightness

Details Some characteristics of the power spectrum of 5-min oscillations of the sun brightness Some characteristics of the power spectrum of 5-min oscillations of the sun brightness

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990azh....67..829b&link_type=abstract

Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 67, July-Aug. 1990, p. 829-836. In Russian.

Astronomy and Astrophysics

Astronomy

Periodic Variations, Power Spectra, Solar Flux Density, Solar Oscillations, Solar Radiation, Line Spectra, Solar Sensors, Solar Spectra

Scientific paper

Results are presented on solar radiance observations carried out using the Phobos IFIR instrument. Particular attention is given to time variations of the power spectrum of 5-min solar brightness oscillations. It is found that, in general, the lines are generated inhomogeneously in the spectrum. Each of the frequencies is excited separately at a definite time interval. The minimal duration of active phases does not exceed 3 hrs.

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