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Type: Artigo de periódico
Title: Great Solar Bursts Of October 19, 22 And 23, 1989
Author: Makhmutov V.S.
Kaufmann P.
Costa J.E.R.
Lagrotta P.R.
Magun A.
Arzner K.
Bazilevskaya G.A.
Shea M.A.
Abstract: Itapetinga measurements at 48 GHz with the multibeam technique are used to determine the relative position of solar burst centroid of emission with high spatial accuracy and time resolution. For the Great Bursts of October 19,22, 1989, with a large production of relativistic'particles, and October 23, it is suggested that, at 48 GHz, the bursts might have originated in more then one source in space and time. Additionally the October 19 and 22 Ground Level Events exhibited very unusual intensity-time profiles including double component structures for the onset phase. The Bern observatory spectral radio emission data show a strong spectral flattening typical for large source inhomogeneties. The interpretation for this is that large solar flares are a superposition of a few strong bursts (separated both in space and time) in the same flaring region. © 2002 COSPAR. Published by Elsevier Science Ltd. All rights reserved.
Citation: Advances In Space Research. , v. 29, n. 12, p. 2101 - 2104, 2002.
Rights: fechado
Identifier DOI: 10.1016/S0273-1177(02)00235-1
Date Issue: 2002
Appears in Collections:Unicamp - Artigos e Outros Documentos

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