Characterization of intensity variations along Fe XIV coronal loops - a case study

We discuss a method, and corresponding results, to analyze the dynamics of localized small-scale coronal (post-flare) loops observed with the MICA (Mirror Coronagraph for Argentina) telescope in the well-known green coronal line at 530.3 nm. In particular, we designed a procedure to measure intensit...

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Publicado: 2004
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00380938_v222_n2_p229_Costa
http://hdl.handle.net/20.500.12110/paper_00380938_v222_n2_p229_Costa
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling paper:paper_00380938_v222_n2_p229_Costa2023-06-08T15:02:38Z Characterization of intensity variations along Fe XIV coronal loops - a case study We discuss a method, and corresponding results, to analyze the dynamics of localized small-scale coronal (post-flare) loops observed with the MICA (Mirror Coronagraph for Argentina) telescope in the well-known green coronal line at 530.3 nm. In particular, we designed a procedure to measure intensity variations along the structure of a loop, both in space and time. The method was applied to a loop on the southwest limb on green-line images taken on October 1st, 2001 with a cadence of about one per minute. Significant coronal variability was detected in a compact loop system suggesting different types of plasma flow. One of them shows a brightening at the top, which moves down along the axis of the loop with mean velocities that suggest scenarios of high-speed plasma flows. The results obtained allow the flow inside coronal structures to be characterized and theoretical descriptions related to different physical scenarios to be compared. © 2004 Kluwer Academic Publishers. 2004 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00380938_v222_n2_p229_Costa http://hdl.handle.net/20.500.12110/paper_00380938_v222_n2_p229_Costa
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description We discuss a method, and corresponding results, to analyze the dynamics of localized small-scale coronal (post-flare) loops observed with the MICA (Mirror Coronagraph for Argentina) telescope in the well-known green coronal line at 530.3 nm. In particular, we designed a procedure to measure intensity variations along the structure of a loop, both in space and time. The method was applied to a loop on the southwest limb on green-line images taken on October 1st, 2001 with a cadence of about one per minute. Significant coronal variability was detected in a compact loop system suggesting different types of plasma flow. One of them shows a brightening at the top, which moves down along the axis of the loop with mean velocities that suggest scenarios of high-speed plasma flows. The results obtained allow the flow inside coronal structures to be characterized and theoretical descriptions related to different physical scenarios to be compared. © 2004 Kluwer Academic Publishers.
title Characterization of intensity variations along Fe XIV coronal loops - a case study
spellingShingle Characterization of intensity variations along Fe XIV coronal loops - a case study
title_short Characterization of intensity variations along Fe XIV coronal loops - a case study
title_full Characterization of intensity variations along Fe XIV coronal loops - a case study
title_fullStr Characterization of intensity variations along Fe XIV coronal loops - a case study
title_full_unstemmed Characterization of intensity variations along Fe XIV coronal loops - a case study
title_sort characterization of intensity variations along fe xiv coronal loops - a case study
publishDate 2004
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00380938_v222_n2_p229_Costa
http://hdl.handle.net/20.500.12110/paper_00380938_v222_n2_p229_Costa
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