Large-scale brightenings associated with flares
Flare-associated large-scale (>1010 cm) X-ray brightenings, the so-called 'giant arches' in the nomenclature of Švestka and co-workers, were discovered in images obtained by the SMM Hard X-ray Imaging Spectrometer hours after the onset of two-ribbon flares. The apparent correlation...
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1992
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00380938_v141_n1_p147_Mandrini http://hdl.handle.net/20.500.12110/paper_00380938_v141_n1_p147_Mandrini |
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paper:paper_00380938_v141_n1_p147_Mandrini2023-06-08T15:02:32Z Large-scale brightenings associated with flares Flare-associated large-scale (>1010 cm) X-ray brightenings, the so-called 'giant arches' in the nomenclature of Švestka and co-workers, were discovered in images obtained by the SMM Hard X-ray Imaging Spectrometer hours after the onset of two-ribbon flares. The apparent correlation between both phenomena suggested that they could be interpreted in the framework of the same model. In this paper we show that large-scale loop brightenings, of sizes similar to the giant arches, occur also in association with confined flares in complex active regions. In these cases, the relation between the large-scale structure and the underlying flare is clearly given by the magnetic field topology. We also show that energization of these structures can be partially due to the injection of suprathermal particles that are accelerated at the separator region. We discuss the implications of these results within the framework of the interacting loops picture of flares and of the giant arch phenomenology. © 1992 Kluwer Academic Publishers. 1992 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00380938_v141_n1_p147_Mandrini http://hdl.handle.net/20.500.12110/paper_00380938_v141_n1_p147_Mandrini |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
Flare-associated large-scale (>1010 cm) X-ray brightenings, the so-called 'giant arches' in the nomenclature of Švestka and co-workers, were discovered in images obtained by the SMM Hard X-ray Imaging Spectrometer hours after the onset of two-ribbon flares. The apparent correlation between both phenomena suggested that they could be interpreted in the framework of the same model. In this paper we show that large-scale loop brightenings, of sizes similar to the giant arches, occur also in association with confined flares in complex active regions. In these cases, the relation between the large-scale structure and the underlying flare is clearly given by the magnetic field topology. We also show that energization of these structures can be partially due to the injection of suprathermal particles that are accelerated at the separator region. We discuss the implications of these results within the framework of the interacting loops picture of flares and of the giant arch phenomenology. © 1992 Kluwer Academic Publishers. |
| title |
Large-scale brightenings associated with flares |
| spellingShingle |
Large-scale brightenings associated with flares |
| title_short |
Large-scale brightenings associated with flares |
| title_full |
Large-scale brightenings associated with flares |
| title_fullStr |
Large-scale brightenings associated with flares |
| title_full_unstemmed |
Large-scale brightenings associated with flares |
| title_sort |
large-scale brightenings associated with flares |
| publishDate |
1992 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00380938_v141_n1_p147_Mandrini http://hdl.handle.net/20.500.12110/paper_00380938_v141_n1_p147_Mandrini |
| _version_ |
1768544169639280640 |