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Astron. Astrophys. 317, 925-928 (1997)

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Relation between DIFOS "irradiance" data and solar activity

K. Pflug 1, V.N. Obridko 2, K. Arlt 1 and N.I. Lebedev 2

1 Astrophysikalisches Institut Potsdam, Telegrafenberg A 31, D-14473 Potsdam, Germany (Internet: KPflug@aip.de, KArlt@aip.de)
2 Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation of the Russian Academy of Sciences, Troitsk City, Moscow Region, 142092 Russia (Internet: SolTer@charley.izmiran.rssi.ru)

Received 7 March 1996 / Accepted 17 June 1996

Abstract

Solar irradiance measurements with the DIFOS-photometer aboard the satellite CORONAS-I were compared with short term variations of solar activity. The sunspot blocking effect was confirmed and an anticorrelation with the 2600 MHz radio flux is very pronounced. Furthermore a close relation to the large scale structure of the magnetic field existed during the observational period from 1994, March 16 to May 7.

Key words: space vehicles – Sun: oscillations; activity; magnetic fields; general

Send offprint requests to: K. Pflug

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© European Southern Observatory (ESO) 1997

Online publication: July 8, 1998
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