Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983pazh....9..741m&link_type=abstract
(Pis'ma v Astronomicheskii Zhurnal, vol. 9, Nov.-Dec. 1983, p. 741-744) Soviet Astronomy Letters (ISSN 0360-0327), vol. 9, Nov.-
Astronomy and Astrophysics
Astronomy
1
Brightness, Solar Oscillations, Solar Radio Emission, Atmospheric Attenuation, Millimeter Waves, Photosphere, Radial Velocity
Scientific paper
Regular radio brightness variations in solar emissions were measured at 8.2 and 13.5 mm wavelengths. No signal from other parts of the sun was subtracted and terrestrial atmospheric absorption of the signals was allowed for by means of Bourguer's law. Five undisturbed solar areas were scanned in 1980-82. The 160.01 min oscillation was revealed with a superposed epochs method. The variation period was further refined by breaking the measurements up into three solar regions: polar, midlatitudes and central. The radio brightness varied with the photospheric brightness, which lagged the radial velocity oscillations by a fixed interval. The oscillations thereby occur coincident with pulsations in the radius of the sun.
Efanov Alexander V.
Moiseev I. G.
Nesterov N. S.
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