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Abstract:

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.

Registro:

Documento: Artículo
Título:Characterization of intensity variations along Fe XIV coronal loops - a case study
Autor:Costa, A.; Stenborg, G.
Filiación:Instituto de Astronomía y Física del Espacio (CONICET), CC 67 Suc. 28, (1428) Buenos Aires, Argentina
Max-Planck-Institut für Aeronomie (MPAe), Max-Planck-Str. 2, (D37191) Katlenburg-Lindau, Germany
The Catholic University of America, Washington, DC, United States
Año:2004
Volumen:222
Número:2
Página de inicio:229
Página de fin:245
DOI: http://dx.doi.org/10.1023/B:SOLA.0000043570.97010.b7
Título revista:Solar Physics
Título revista abreviado:Sol. Phys.
ISSN:00380938
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00380938_v222_n2_p229_Costa

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Citas:

---------- APA ----------
Costa, A. & Stenborg, G. (2004) . Characterization of intensity variations along Fe XIV coronal loops - a case study. Solar Physics, 222(2), 229-245.
http://dx.doi.org/10.1023/B:SOLA.0000043570.97010.b7
---------- CHICAGO ----------
Costa, A., Stenborg, G. "Characterization of intensity variations along Fe XIV coronal loops - a case study" . Solar Physics 222, no. 2 (2004) : 229-245.
http://dx.doi.org/10.1023/B:SOLA.0000043570.97010.b7
---------- MLA ----------
Costa, A., Stenborg, G. "Characterization of intensity variations along Fe XIV coronal loops - a case study" . Solar Physics, vol. 222, no. 2, 2004, pp. 229-245.
http://dx.doi.org/10.1023/B:SOLA.0000043570.97010.b7
---------- VANCOUVER ----------
Costa, A., Stenborg, G. Characterization of intensity variations along Fe XIV coronal loops - a case study. Sol. Phys. 2004;222(2):229-245.
http://dx.doi.org/10.1023/B:SOLA.0000043570.97010.b7