The 3B/X3 solar flare of 27 February 1992

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Active region NOAA 7070 was related to a 3B/X3 solar flare that occurred on February 27, 1992. The soft X-ray flare observations were obtained by the SXT (Soft X-ray Telescope) on board the Yohkoh satellite, and those in Hα from the Udaipur Observatory. The location of the Hα kernels and ribbons, an...

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Autores principales: López Fuentes, M.C., Mandrini, C.H., Rovira, M.G., Démoulin, P.
Formato: JOUR
Materias:
Magnetohydrostatics (MHS)
Solar activity
Solar flares
Solar magnetic field
solar activity
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00167169_v39_n1_p65_LopezFuentes
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00167169_v39_n1_p65_LopezFuentes
record_format dspace
spelling todo:paper_00167169_v39_n1_p65_LopezFuentes2023-10-03T14:14:39Z The 3B/X3 solar flare of 27 February 1992 López Fuentes, M.C. Mandrini, C.H. Rovira, M.G. Démoulin, P. Magnetohydrostatics (MHS) Solar activity Solar flares Solar magnetic field solar activity Active region NOAA 7070 was related to a 3B/X3 solar flare that occurred on February 27, 1992. The soft X-ray flare observations were obtained by the SXT (Soft X-ray Telescope) on board the Yohkoh satellite, and those in Hα from the Udaipur Observatory. The location of the Hα kernels and ribbons, and the shape of soft X-ray loops are compared with the magnetic field model of the AR. Both, observations and model, suggest that the coronal loops are highly sheared before the flare and that the configuration relaxes after energy release. We compute the magnetic free energy at 2x1032 erg; this value is typical for the energy released by solar flares. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00167169_v39_n1_p65_LopezFuentes
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Magnetohydrostatics (MHS)
Solar activity
Solar flares
Solar magnetic field
solar activity
spellingShingle Magnetohydrostatics (MHS)
Solar activity
Solar flares
Solar magnetic field
solar activity
López Fuentes, M.C.
Mandrini, C.H.
Rovira, M.G.
Démoulin, P.
The 3B/X3 solar flare of 27 February 1992
topic_facet Magnetohydrostatics (MHS)
Solar activity
Solar flares
Solar magnetic field
solar activity
description Active region NOAA 7070 was related to a 3B/X3 solar flare that occurred on February 27, 1992. The soft X-ray flare observations were obtained by the SXT (Soft X-ray Telescope) on board the Yohkoh satellite, and those in Hα from the Udaipur Observatory. The location of the Hα kernels and ribbons, and the shape of soft X-ray loops are compared with the magnetic field model of the AR. Both, observations and model, suggest that the coronal loops are highly sheared before the flare and that the configuration relaxes after energy release. We compute the magnetic free energy at 2x1032 erg; this value is typical for the energy released by solar flares.
format JOUR
author López Fuentes, M.C.
Mandrini, C.H.
Rovira, M.G.
Démoulin, P.
author_facet López Fuentes, M.C.
Mandrini, C.H.
Rovira, M.G.
Démoulin, P.
author_sort López Fuentes, M.C.
title The 3B/X3 solar flare of 27 February 1992
title_short The 3B/X3 solar flare of 27 February 1992
title_full The 3B/X3 solar flare of 27 February 1992
title_fullStr The 3B/X3 solar flare of 27 February 1992
title_full_unstemmed The 3B/X3 solar flare of 27 February 1992
title_sort 3b/x3 solar flare of 27 february 1992
url http://hdl.handle.net/20.500.12110/paper_00167169_v39_n1_p65_LopezFuentes
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AT demoulinp the3bx3solarflareof27february1992
AT lopezfuentesmc 3bx3solarflareof27february1992
AT mandrinich 3bx3solarflareof27february1992
AT roviramg 3bx3solarflareof27february1992
AT demoulinp 3bx3solarflareof27february1992
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