An observational search for large-scale organization of five-minute oscillations on the sun

Details An observational search for large-scale organization of five-minute oscillations on the sun An observational search for large-scale organization of five-minute oscillations on the sun

Mar 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978soph...57....3d&link_type=abstract

Solar Physics, vol. 57, Mar. 1978, p. 3-11. Research supported by the Max C. Fleischmann Foundation

Physics

2

Solar Activity, Solar Corona, Solar Magnetic Field, Solar Spectra, Velocity Distribution, Geomagnetism, Oscillations, Periodic Variations, Solar Activity Effects, Solar Atmosphere

Scientific paper

The large-scale solar velocity field has been measured over an aperture of radius 0.8 solar radii on 121 days between April and September, 1976. Measurements are made in the line Fe I 5123.730 A, employing a velocity subtraction technique similar to that of Severny et al. (1976). Comparisons of the amplitude and frequency of the five-minute resonant oscillation with the geomagnetic C9 index and magnetic sector boundaries show no evidence of any relationship between the oscillations and coronal holes or sector structure.

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