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Abstract:

We follow up on our earlier studies of the characteristics of energy release in solar flares, extending it to weak flare-like transient brightenings which are called "microflares". We find that all events share similar properties in spite of their large differences in X-ray brightness, including the fact that their trigger seems to be due to the interaction of impacted bipolar regions which leads to the release of their internally stored energy. The overall topology of the energy release region is preserved over a period in which an active region produced numerous events, except at the site of a two ribbon flare, which probably led to a permanent disruption of the magnetic configuration. Our results suggest that transient microflares can be responsible for a large fraction of the coronal heating in active regions, and we propose a picture in which reconnection may act as a catalyst for the release of stored magnetic energy. © 1990.

Registro:

Documento: Artículo
Título:Observed signatures of magnetic energy conversion in solar flares and microflares
Autor:Mandrini, C.H.; Machado, M.E.; Hernandez, A.M.; Rovira, M.G.
Filiación:Instituto de Astronomia Y Fisica del Espacia, C.C. 67, Suc. 28, 1428 Buenos Aires, Argentina
Observatorio de Fisica Cosmica CNIE, 1663 San Miguel, Argentina
Palabras clave:Solar Radiation; Sun; Magnetic Energy Conversion; Magnetic Loop Interaction; Microflares; Solar Flares; Atmospheric Radiation
Año:1990
Volumen:10
Número:9
Página de inicio:115
Página de fin:120
DOI: http://dx.doi.org/10.1016/0273-1177(90)90216-M
Título revista:Advances in Space Research
Título revista abreviado:Adv. Space Res.
ISSN:02731177
CODEN:ASRSD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02731177_v10_n9_p115_Mandrini

Referencias:

  • Vlahos, Machado, Ramaty, Murphy, Energetic Phenomen on the Sun (1986) NASA CP-2439, pp. 1-2. , M.R. Kundu, B.E. Woodgate
  • Machado, Moore, (1987) Adv. Space Res., 6 (6), p. 217
  • Van Hoven, Hurford, (1987) Adv. Space Res., 6 (6), p. 38
  • Wu, Energetic Phenomena on the Sun (1986) NASA CP-2439, pp. 1-5. , M.R. Kundu, B.E. Woodgate
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Citas:

---------- APA ----------
Mandrini, C.H., Machado, M.E., Hernandez, A.M. & Rovira, M.G. (1990) . Observed signatures of magnetic energy conversion in solar flares and microflares. Advances in Space Research, 10(9), 115-120.
http://dx.doi.org/10.1016/0273-1177(90)90216-M
---------- CHICAGO ----------
Mandrini, C.H., Machado, M.E., Hernandez, A.M., Rovira, M.G. "Observed signatures of magnetic energy conversion in solar flares and microflares" . Advances in Space Research 10, no. 9 (1990) : 115-120.
http://dx.doi.org/10.1016/0273-1177(90)90216-M
---------- MLA ----------
Mandrini, C.H., Machado, M.E., Hernandez, A.M., Rovira, M.G. "Observed signatures of magnetic energy conversion in solar flares and microflares" . Advances in Space Research, vol. 10, no. 9, 1990, pp. 115-120.
http://dx.doi.org/10.1016/0273-1177(90)90216-M
---------- VANCOUVER ----------
Mandrini, C.H., Machado, M.E., Hernandez, A.M., Rovira, M.G. Observed signatures of magnetic energy conversion in solar flares and microflares. Adv. Space Res. 1990;10(9):115-120.
http://dx.doi.org/10.1016/0273-1177(90)90216-M