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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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00380938_v222_n2_p229_Costa |
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todo:paper_00380938_v222_n2_p229_Costa2023-10-03T14:48:34Z Characterization of intensity variations along Fe XIV coronal loops - a case study Costa, A. Stenborg, G. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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. |
| format |
JOUR |
| author |
Costa, A. Stenborg, G. |
| spellingShingle |
Costa, A. Stenborg, G. Characterization of intensity variations along Fe XIV coronal loops - a case study |
| author_facet |
Costa, A. Stenborg, G. |
| author_sort |
Costa, A. |
| title |
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 |
| url |
http://hdl.handle.net/20.500.12110/paper_00380938_v222_n2_p229_Costa |
| work_keys_str_mv |
AT costaa characterizationofintensityvariationsalongfexivcoronalloopsacasestudy AT stenborgg characterizationofintensityvariationsalongfexivcoronalloopsacasestudy |
| _version_ |
1782030930387402752 |