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Cristiani, G.; Martinez, G.; Mandrini, C.H.; Giménez De Castro, C.G.; Da Silva, C.W.; Rovira, M.G.; Kaufmann, P. "Spatial characterization of a flare using radio observations and magnetic field topology" (2007) Solar Physics. 240(2):271-281
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Abstract:

Using magnetograms, EUV and Hα images, Owens Valley Solar Array microwave observations, and 212-GHz flux density derived from the Solar Submillimeter Telescope data, we determine the spatial characteristics of the 1B/M6.9 flare that occurred on November 28, 2001, starting at 16:26 UT in active region (AR) NOAA 9715. This flare is associated with a chromospheric mass ejection or surge observed at 16:42 UT in the Hα images. We compute the coronal magnetic field under the linear force-free field assumption, constrained by the photospheric data of the Michelson Doppler Imager and loops observed by the Extreme Ultraviolet Imaging Telescope. The analysis of the magnetic field connectivity allows us to conclude that magnetic field reconnection between two different coronal/chromospheric sets of arches was at the origin of the flare and surge, respectively. The optically thick microwave spectrum at peak time shows a shape compatible with the emission from two different sites. Fitting gyrosynchrotron emission to the observed spectrum, we derive parameters for each source. © Springer 2007.

Registro:

Documento: Artículo
Título:Spatial characterization of a flare using radio observations and magnetic field topology
Autor:Cristiani, G.; Martinez, G.; Mandrini, C.H.; Giménez De Castro, C.G.; Da Silva, C.W.; Rovira, M.G.; Kaufmann, P.
Filiación:Instituto de Astronomía y Física del Espacio, CONICET-UBA, CC. 67, Suc. 28, 1428 Buenos Aires, Argentina
Centro de Radio Astronomia e Astrofísica Mackenzie, Universidade Presbiteriana Mackenzie, Sao Paulo, Brazil
CCS, Universidade Estadual de Campinas, Campinas, SP, Brazil
Palabras clave:Association with flares; Dynamic spectrum; Flares; Magnetic reconnection; Observational signatures; Radio burst; Relation to magnetic field; Surges
Año:2007
Volumen:240
Número:2
Página de inicio:271
Página de fin:281
DOI: http://dx.doi.org/10.1007/s11207-006-0337-5
Título revista:Solar Physics
Título revista abreviado:Sol. Phys.
ISSN:00380938
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00380938_v240_n2_p271_Cristiani

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Citas:

---------- APA ----------
Cristiani, G., Martinez, G., Mandrini, C.H., Giménez De Castro, C.G., Da Silva, C.W., Rovira, M.G. & Kaufmann, P. (2007) . Spatial characterization of a flare using radio observations and magnetic field topology. Solar Physics, 240(2), 271-281.
http://dx.doi.org/10.1007/s11207-006-0337-5
---------- CHICAGO ----------
Cristiani, G., Martinez, G., Mandrini, C.H., Giménez De Castro, C.G., Da Silva, C.W., Rovira, M.G., et al. "Spatial characterization of a flare using radio observations and magnetic field topology" . Solar Physics 240, no. 2 (2007) : 271-281.
http://dx.doi.org/10.1007/s11207-006-0337-5
---------- MLA ----------
Cristiani, G., Martinez, G., Mandrini, C.H., Giménez De Castro, C.G., Da Silva, C.W., Rovira, M.G., et al. "Spatial characterization of a flare using radio observations and magnetic field topology" . Solar Physics, vol. 240, no. 2, 2007, pp. 271-281.
http://dx.doi.org/10.1007/s11207-006-0337-5
---------- VANCOUVER ----------
Cristiani, G., Martinez, G., Mandrini, C.H., Giménez De Castro, C.G., Da Silva, C.W., Rovira, M.G., et al. Spatial characterization of a flare using radio observations and magnetic field topology. Sol. Phys. 2007;240(2):271-281.
http://dx.doi.org/10.1007/s11207-006-0337-5