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Various scale structures of the quiet sun emission at 3 mm wavelength
Author(s) -
Nagnibeda V. G.,
Piotrovitch V. V.
Publication year - 1990
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.2113110631
Subject(s) - quiet , brightness , physics , wavelength , sunspot , millimeter , brightness temperature , astrophysics , astronomy , telescope , radio telescope , optics , magnetic field , quantum mechanics
The observations of the Sun during some years with the RT–7.5 millimetre radio telescope are allowed, in particular, to find large scale structures of the quiet Sun emission. It is shown that if even there is no any active region on solar disc latitudinal zones of enhanced brightness exist which coincide with zones of sunspot appearance. Brightness temperature differences between equatorial and latitudinal zones are about 100 K at 3.4 mm wavelength.