Artículo
Abstract:
During the third Whole Sun Month Campaign (August 18 - September 14, 1999), the evolution of the active region NOAA 8668 was followed during its meridian passage and at the limb (Sigmoid JOP 106), with simultaneous observations with the Solar and Heliospheric Observatory (SOHO), and with other instruments, both satellite and ground-based. On August 21st, a small flare, associated with a brightening of the sigmoidal structure, occurred. SOHO Coronal Diagnostic Spectrometer (CDS) observations of this small flare are presented. Coronal temperatures and densities of the sigmoid are estimated. High transition region densities (in the range 2.5-7 × 1011 cm-3), obtained using O IV, are present in the brightenings associated with the flare. At coronal level, high temperatures of at least 8 MK were reached, as shown by strong Fe XIX emission. After this small flare, relatively strong blue-shifts (≃ 30 km/s) are observed in coronal lines, located at the two ends of a small loop system associated with the sigmoid. © 2002 COSPAR. Published by Elsevier Science Ltd. All rights reserved.
Registro:
| Documento: | Artículo |
| Título: | Sigmoidal diagnostics with SOHO/CDS |
| Autor: | Del Zanna, G.; Gibson, S.E.; Mason, H.E.; Pike, C.D.; Mandrini, C.H. |
| Filiación: | DAMTP, University of Cambridge, Silver Street, Cambridge CB3 9EW, United Kingdom Catholic University of America, Washington, DC 20064, United States Rutherford Appleton Laboratory, Didcot, Oxfordshire OX11 0QX, United Kingdom IAFE, 1428 Buenos Aires, Argentina |
| Palabras clave: | Electromagnetic wave emission; Fusion reactions; Satellite observatories; Sun; Temperature measurement; Sigmoidal diagnostics; Space research; corona; solar radiation |
| Año: | 2002 |
| Volumen: | 30 |
| Número: | 3 |
| Página de inicio: | 551 |
| Página de fin: | 556 |
| DOI: | http://dx.doi.org/10.1016/S0273-1177(02)00341-1 |
| Título revista: | Advances in Space Research |
| Título revista abreviado: | Adv. Space Res. |
| ISSN: | 02731177 |
| CODEN: | ASRSD |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02731177_v30_n3_p551_DelZanna |
Referencias:
- Czaykowska, A., de Pontieu, B., Alexander, D., Rank, G., (1999) ApJ, 521, pp. L75
- Del Zanna, G., Bromage, B.J.I., (1999) Special Issue (Whole Sun Month) of JGR - Space Physics, 104, p. 9753
- Del Zanna, G., Bromage, B.J.I., (1999) ESA-SP, 446, p. 269
- Del Zanna, G., (1999), PhD thesis, University of Central Lancashire, UK; Dere, K.P., Landi, E., Mason, H.E., Monsignori Fossi, B.C., Young, P.R., (1997) A and ASS, 125, p. 149
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Citas:
---------- APA ----------
Del Zanna, G., Gibson, S.E., Mason, H.E., Pike, C.D. & Mandrini, C.H. (2002) . Sigmoidal diagnostics with SOHO/CDS. Advances in Space Research, 30(3), 551-556.http://dx.doi.org/10.1016/S0273-1177(02)00341-1
---------- CHICAGO ----------
Del Zanna, G., Gibson, S.E., Mason, H.E., Pike, C.D., Mandrini, C.H. "Sigmoidal diagnostics with SOHO/CDS" . Advances in Space Research 30, no. 3 (2002) : 551-556.http://dx.doi.org/10.1016/S0273-1177(02)00341-1
---------- MLA ----------
Del Zanna, G., Gibson, S.E., Mason, H.E., Pike, C.D., Mandrini, C.H. "Sigmoidal diagnostics with SOHO/CDS" . Advances in Space Research, vol. 30, no. 3, 2002, pp. 551-556.http://dx.doi.org/10.1016/S0273-1177(02)00341-1
---------- VANCOUVER ----------
Del Zanna, G., Gibson, S.E., Mason, H.E., Pike, C.D., Mandrini, C.H. Sigmoidal diagnostics with SOHO/CDS. Adv. Space Res. 2002;30(3):551-556.http://dx.doi.org/10.1016/S0273-1177(02)00341-1
