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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



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ID: 50790.0, MPI für Astronomie / Publikationen_mpia
Great solar bursts of October 19, 22 and 23, 1989
Authors:Makhmutov, V. S.; Kaufmann, P.; Costa, J. E. R.; Lagrotta, P. R.; Magun, A.; Arzner, K.; Bazilevskaya, G. A.; Shea, M. A.
Date of Publication (YYYY-MM-DD):2002
Title of Journal:Advances in Space Research
Volume:29
Start Page:2101
End Page:2104
Review Status:not specified
Audience:Not Specified
Abstract / Description: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.
Comment of the Author/Creator:Date: 2002, January 1, 2002
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
External Affiliations:Aplicacoes Espaciais, EPUSP, CP-61548, 05427-970,
S.Paulo, Brasil), AB(CRAAE-Centro de Radio
Astronomia e Aplicacoes Espaciais, EPUSP,
CP-61548, 05427-970, S.Paulo, Brasil),
AC(CRAAE-Centro de Radio Astronomia e Aplicacoes
Espaciais, EPUSP, CP-61548, 05427-970, S.Paulo,
Brasil), AD(CRAAE-Centro de Radio Astronomia e
Aplicacoes Espaciais, EPUSP, CP-61548, 05427-970,
S.Paulo, Brasil), AE(CRAAE-Centro de Radio
Astronomia e Aplicacoes Espaciais, EPUSP,
CP-61548, 05427-970, S.Paulo, Brasil),
AF(CRAAE-Centro de Radio Astronomia e Aplicacoes
Espaciais, EPUSP, CP-61548, 05427-970, S.Paulo,
Brasil), AG(CRAAE-Centro de Radio Astronomia e
Aplicacoes Espaciais, EPUSP, CP-61548, 05427-970,
S.Paulo, Brasil), AH(CRAAE-Centro de Radio
Astronomia e Aplicacoes Espaciais, EPUSP,
CP-61548, 05427-970, S.Paulo, Brasil)
Identifiers:URL:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bi... [ID No:1]
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