Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/328243
Type: Artigo
Title: Comparison Of 30 Thz Impulsive Burst Time Development To Microwaves, H Alpha, Euv, And Goes Soft X-rays
Comparison of 30 THz impulsive burst time development to microwaves, H alpha, EUV,and GOES soft X-rays
Author: Miteva, R.
Kaufmann, P.
Cabezas, D. P.
Cassiano, M. M.
Fernandes, L. O. T.
Freeland, S. L.
Karlicky, M.
Kerdraon, A.
Kudaka, A. S.
Luoni, M. L.
Marcon, R.
Raulin, J.-P.
Trottet, G.
White, S. M.
Abstract: The recent discovery of impulsive solar burst emission in the 30 THz band is raising new interpretation challenges. One event associated with a GOES M2 class flare has been observed simultaneously in microwaves, Ha, EUV, and soft X-ray bands. Although these new observations confirm some features found in the two prior known events, they exhibit time profile structure discrepancies between 30 THz, microwaves, and hard X-rays (as inferred from the Neupert effect). These results suggest a more complex relationship between 30 THz emission and radiation produced at other wavelength ranges. The multiple frequency emissions in the impulsive phase are likely to be produced at a common flaring site lower in the chromosphere. The 30 THz burst emission may be either part of a nonthermal radiation mechanism or due to the rapid thermal response to a beam of high-energy particles bombarding the dense solar atmosphere.
The recent discovery of impulsive solar burst emission in the 30 THz band is raising new interpretation challenges. One event associated with a GOES M2 class flare has been observed simultaneously in microwaves, Ha, EUV, and soft X-ray bands. Although these new observations confirm some features found in the two prior known events, they exhibit time profile structure discrepancies between 30 THz, microwaves, and hard X-rays (as inferred from the Neupert effect). These results suggest a more complex relationship between 30 THz emission and radiation produced at other wavelength ranges. The multiple frequency emissions in the impulsive phase are likely to be produced at a common flaring site lower in the chromosphere. The 30 THz burst emission may be either part of a nonthermal radiation mechanism or due to the rapid thermal response to a beam of high-energy particles bombarding the dense solar atmosphere.
Subject: Sun: Flares
Sun: Chromosphere
Sun: Radio Radiation
Sun: Uv Radiation
Erupções solares, Radiação ultravioleta
Country: França
Editor: EDP Sciences
Citation: Astronomy & Astrophysics. Edp Sciences As, v. 586, p. , 2016.
Rights: aberto
Identifier DOI: 10.1051/0004-6361/201425520
Address: https://www.aanda.org/articles/aa/abs/2016/02/aa25520-14/aa25520-14.html
Date Issue: 2016
Appears in Collections:IFGW - Artigos e Outros Documentos
CCSNano - Artigos e Outros Documentos

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