Navegar

Colección

Datos Estadísticas

Artículo

Harra, L.K.; Démoulin, P.; Mandrini, C.H.; Matthews, S.A.; Van Driel-Gesztelyi, L.; Culhane, J.L.; Fletcher, L. "Flows in the solar atmosphere due to the eruptions on the 15th July, 2002" (2005) Astronomy and Astrophysics. 438(3):1099-1106
Estamos trabajando para incorporar este artículo al repositorio
Consulte el artículo en la página del editor
Consulte la política de Acceso Abierto del editor

Abstract:

Which kind of flows are present during flares? Are they compatible with the present understanding of energy release and which model best describes the observations? We analyze successive flare events in order to answer these questions. The flares were observed in the magnetically complex NOAA active region (AR) 10030 on 15 July 2002. One of them is of GOES X-class. The description of these flares and how they relate to the break-out model is presented in Gary & Moore (2004). The Coronal Diagnostic Spectrometer on board SOHO observed this active region for around 14 h. The observed emission lines provided data from the transition region to the corona with a field of view covering more than half of the active region. In this paper we analyse the spatially resolved flows seen in the atmosphere from the preflare to the flare stages. We find evidence for evaporation occurring before the impulsive phase. During the main phase, the ongoing magnetic reconnection is demonstrated by upflows located at the edges of the flare loops (while downflows are found in the flare loops themselves). We also report the impact of a filament eruption on the atmosphere, with flows up to 300 km s-1 observed at transition-region temperatures in regions well away from the location of the pre-eruptive filament. Our results are consistent with the predictions of the break out model before the impulsive phase of the flare; while, as the flare progresses, the directions of the flows are consistent with flare models invoking evaporation followed by cooling and downward plasma motions in the flare loops. © ESO 2005.

Registro:

Documento: Artículo
Título:Flows in the solar atmosphere due to the eruptions on the 15th July, 2002
Autor:Harra, L.K.; Démoulin, P.; Mandrini, C.H.; Matthews, S.A.; Van Driel-Gesztelyi, L.; Culhane, J.L.; Fletcher, L.
Filiación:Mullard Space Science Laboratory, University College London, Dorking, Surrey, RH5 6NT, United Kingdom
Observatoire de Paris, Section Meudon, LESIA (CNRS), 92195 Meudon Principal Cedex, France
Instituto de Astronomía y Física del Espacio, CONICET-UBA, CC. 67 Suc. 28, 1428 Buenos Aires, Argentina
Konkoly Observatory, Hungarian Academy of Sciences, PO Box 67, 1525 Budapest, Hungary
Department of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom
Palabras clave:Sun: corona; Sun: coronal mass ejections (CMEs); Sun: flares; Sun: UV radiation; Cameras; Charge coupled devices; Cooling; Electromagnetic wave emission; Evaporation; Extraterrestrial atmospheres; Mathematical models; Plasmas; Spectrometers; Sun; Ultraviolet radiation; Corona-Sun; Coronal mass ejections (CMEs); Flares-Sun; UV radiation-Sun; Solar energy
Año:2005
Volumen:438
Número:3
Página de inicio:1099
Página de fin:1106
DOI: http://dx.doi.org/10.1051/0004-6361:20052965
Título revista:Astronomy and Astrophysics
Título revista abreviado:Astron. Astrophys.
ISSN:00046361
CODEN:AAEJA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v438_n3_p1099_Harra

Referencias:

  • Alissandrakis, C.E., (1981) A&A, 100, p. 197
  • Aulanier, G., Deluca, E.E., Antiochos, S.K., McMullen, R.A., Golub, L., (2000) ApJ, 540, p. 1126
  • Antiochos, S., Devore, C.R., Klimchuk, J.A., (1999) ApJ, 510, p. 485
  • Brosius, J.W., (2003) ApJ, 586, p. 1417
  • Brosius, J.W., Phillips, K.J.H., (2004) ApJ, 613, p. 580
  • Cargill, P., Priest, E.R., (1983) ApJ, 266, p. 383
  • Culhane, J.L., Phillips, A.T., Inda-Koide, M., (1994) Sol. Phys., 153, p. 307
  • Czaykowska, A., De Pontieu, B., Alexander, D., Rank, G., (1999) ApJ, 521, pp. L75
  • Delaboudiniere, J.-P., Artzner, G.E., Brunaud, J., (1995) Sol. Phys., 162, p. 291
  • Fisher, G.H., Canfield, R.C., McClymont, A.N., (1985) ApJ, 289, p. 424
  • Fisher, G.H., Canfield, R.C., McClymont, A.N., (1985) ApJ, 289, p. 414
  • Gary, G.A., Moore, R.L., (2004) ApJ, 611, p. 545
  • Handy, B.N., Acton, L.W., Kankelborg, C.C., (1999) Sol. Phys., 187, p. 229
  • Harra, L.K., Mandrini, C.H., Matthews, S.A., (2004) Sol. Phys., 223, p. 57
  • Harrison, R.A., Sawyer, E.C., Carter, M.K., (1995) Sol. Phys., 162, p. 233
  • Kopp, R.A., Pneuman, G.W., (1976) Sol. Phys., 50, p. 85
  • Li, J., Mickey, D.L., LaBonte, B.J., (2005) ApJ, 620, p. 1092
  • Liu, Y., Norton, A., MDI measurement errors: The magnetic perspective (2001) SOI-technical Note, 1 (44). , http://soi.stanford.edu/_data/_cal/mag_data.html#nonlinearity
  • Mariska, J.T., Emslie, A., Gordon, Li, P., (1989) ApJ, 341, p. 1467
  • Mariska, J.T., (1994) ApJ, 434, p. 756
  • Silva, A.V.R., Wang, H., Gary, D.E., Nitta, N., Zinn, H., (1997) ApJ, 481, p. 978
  • Scherrer, P.H., Bogart, R.S., Bush, R.I., (1995) Sol. Phys., 162, p. 129
  • Teriaca, L., Falchi, A., Cauzzi, G., Falciani, R., Smaldone, L.A., Andretta, V., (2003) ApJ, 588, p. 596
  • Warren, H.P., Doschek, G.A., (2005) ApJ, 618, pp. L157
  • Wuelser, J.-P., Canfield, R.C., Acton, L.W., (1994) ApJ, 424, p. 459

Citas:

---------- APA ----------
Harra, L.K., Démoulin, P., Mandrini, C.H., Matthews, S.A., Van Driel-Gesztelyi, L., Culhane, J.L. & Fletcher, L. (2005) . Flows in the solar atmosphere due to the eruptions on the 15th July, 2002. Astronomy and Astrophysics, 438(3), 1099-1106.
http://dx.doi.org/10.1051/0004-6361:20052965
---------- CHICAGO ----------
Harra, L.K., Démoulin, P., Mandrini, C.H., Matthews, S.A., Van Driel-Gesztelyi, L., Culhane, J.L., et al. "Flows in the solar atmosphere due to the eruptions on the 15th July, 2002" . Astronomy and Astrophysics 438, no. 3 (2005) : 1099-1106.
http://dx.doi.org/10.1051/0004-6361:20052965
---------- MLA ----------
Harra, L.K., Démoulin, P., Mandrini, C.H., Matthews, S.A., Van Driel-Gesztelyi, L., Culhane, J.L., et al. "Flows in the solar atmosphere due to the eruptions on the 15th July, 2002" . Astronomy and Astrophysics, vol. 438, no. 3, 2005, pp. 1099-1106.
http://dx.doi.org/10.1051/0004-6361:20052965
---------- VANCOUVER ----------
Harra, L.K., Démoulin, P., Mandrini, C.H., Matthews, S.A., Van Driel-Gesztelyi, L., Culhane, J.L., et al. Flows in the solar atmosphere due to the eruptions on the 15th July, 2002. Astron. Astrophys. 2005;438(3):1099-1106.
http://dx.doi.org/10.1051/0004-6361:20052965