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Green, L.M.; López Fuentes, M.C.; Mandrini, C.H.; Démoulin, P.; Van Driel-Gesztelyi, L.; Culhane, J.L. "The magnetic helicity budget of a CME-prolific active region" (2002) Solar Physics. 208(1):43-68
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Abstract:

Coronal mass ejections (CMEs) are thought to be the way by which the solar corona expels accumulated magnetic helicity which is injected into the corona via several methods. DeVore (2000) suggests that a significant quantity is injected by the action of differential rotation, however Démoulin et al. (2002b), based on the study of a simple bipolar active region, show that this may not be the case. This paper studies the magnetic helicity evolution in an active region (NOAA 8100) in which the main photospheric polarities rotate around each other during five Carrington rotations. As a result of this changing orientation of the bipole, the helicity injection by differential rotation is not a monotonic function of time. Instead, it experiences a maximum and even a change of sign. In this particular active region, both differential rotation and localized shearing motions are actually depleting the coronal helicity instead of building it. During this period of five solar rotations, a high number of CMEs (35 observed, 65 estimated) erupted from the active region and the helicity carried away has been calculated, assuming that each can be modeled by a twisted flux rope. It is found that the helicity injected by differential rotation (≈ -7 × 1042 Mx2) into the active region cannot provide the amount of helicity ejected via CMEs, which is a factor 5 to 46 larger and of the opposite sign. Instead, it is proposed that the ejected helicity is provided by the twist in the sub-photospheric part of the magnetic flux tube forming the active region.

Registro:

Documento: Artículo
Título:The magnetic helicity budget of a CME-prolific active region
Autor:Green, L.M.; López Fuentes, M.C.; Mandrini, C.H.; Démoulin, P.; Van Driel-Gesztelyi, L.; Culhane, J.L.
Filiación:Inst. de Astronomia/Fis. del Espacio, IAFE, CC. 67 Suc. 28, 1428 Buenos Aires, Argentina
Observatoire de Paris, Section Meudon, LESIA (CNRS), F-92195 Meudon Principal Cedex, France
Centre for Plasma Astrophysics, K.U. Leuven, Celestijnenlaan 200B, 3001 Heverlee, Belgium
Año:2002
Volumen:208
Número:1
Página de inicio:43
Página de fin:68
DOI: http://dx.doi.org/10.1023/A:1019658520033
Título revista:Solar Physics
Título revista abreviado:Sol. Phys.
ISSN:00380938
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00380938_v208_n1_p43_Green

Referencias:

  • Alissandrakis, C.E., (1981) Astron. Astrophys., 100, p. 197
  • Berger, M.A., (1984) Geophys. Astrophys. Fluid Dynamics, 30, p. 79
  • Berger, M.A., (1985) Astrophys. J. Suppl. Series, 59, p. 433
  • Berger, M.A., (1988) Astron. Astrophys., 201, p. 355
  • Berger, M.A., (2000) Plasma Phys. Controlled Fusion, 41, p. 167
  • Berger, M.A., Field, G.B., (1984) J. Fluid. Mech., 147, p. 133
  • Bothmer, V., Schwenn, R., (1994) Space Sci. Rev., 70, p. 215
  • Brown, M.R., Canfield, R.C., Pevtsov, A.A., (1999) Magnetic Helicity in Space and Laboratory Plasma, Geophy. Mon. Ser., 3. , AGU, Washington
  • Brueckner, G.E., Howard, R.A., Koomen, M.J., Korendyke, C.M., Michels, D.J., Moses, J.D., (1995) Solar Phys., 162, p. 357
  • Brueckner, G.E., Howard, R.A., Koomen, M.J., Korendyke, C.M., Michels, D.J., Moses, J.D., (1998) J. Geophys. Res., 103, p. 277
  • Canfield, R.C., Hudson, H.S., McKenzie, D.E., (1999) Geophys. Res. Lett., 26, p. 627
  • Chae, J., (2001) Astrophys. J., 560, pp. L95
  • Chae, J., Wang, H., Qiu, J., Goode, P.R., Strous, L., Yun, H.S., (2001) Astrophys. J., 560, p. 476
  • Cliver, E.W., Hudson, H., (2001) J. Atmospheric Solar Terrest. Phys., , in press
  • Delaboudinière, J.-P., Artzner, G.E., Brunaud, J., (1995) Solar Phys., 162, p. 291
  • Delannée, C., Aulanier, G., (1999) Solar Phys., 190, p. 107
  • Démoulin, P., Mandrini, C.H., Van Driel-Gesztelyi, L., López Fuentes, M., Aulanier, G., (2002) Solar Phys., 207, p. 87
  • Démoulin, P., Mandrini, C.H., Van Driel-Gesztelyi, L., (2002) Astron. Astrophys., 382, p. 650
  • DeVore, C.R., (2000) Astrophys. J., 539, p. 944
  • Finn, J.H., Antonsen, T.M., (1985) Comm. Plasma Phys. Contr. Fusion, 9, p. 111
  • Green, L.M., Harra, L.K., Matthews, S.A., Culhane, J.L., (2001) Solar Phys., 200, p. 189
  • Hale, G.E., Nicholson, S.B., (1925) Astrophys. J., 62, p. 270
  • Hale, G.E., Ellerman, F., Nicholson, S.B., Joy, A.H., (1919) Astrophys. J., 49, p. 153
  • Komm, R.W., Howard, R.F., Harvey, J.W., (1993) Solar Phys., 143, p. 19
  • Leamon, R.J., Canfield, R.C., Pevtsov, A.A., (2002) J. Geophys. Res., , in press
  • Lepping, R.P., Burlaga, L.F., Jones, J.A., (1990) J. Geophys. Res., 95, p. 11957
  • Longcope, D.W., Welsch, B., (2000) Astrophys. J., 545, p. 1089
  • López Fuentes, M., Démoulin, P., Mandrini, C.H., Van Driel-Gesztelyi, L., (2000) Astrophys. J., 544, p. 540
  • López Fuentes, M.C., Mandrini, C.H., Démoulin, P., Van Driel-Gesztelyi, L., (2001) ASP Conf. Ser: Magnetic Fields Across the Hertzsprung-Rusell Diagram, , G. Mathys, S. K. Solanki, and D. T. Wickramasingle (eds.), in press
  • Low, B.C., (1996) Solar Phys., 167, p. 217
  • Low, B.C., (1997) Coronal Mass Ejections, Geophysical Monograph 99, p. 39. , N. Crooker, J. A. Joselyn, and J. Feynman (eds.), American Geophysical Press, Washington DC
  • Maia, D., Vourlidas, A., Pick, M., Howard, R., Schwenn, R., Magalhes, A., (1999) J. Geophys. Res., 104, p. 12507
  • Marubashi, K., (1997) Coronal Mass Ejections, Geophysical Monograph 99, p. 147. , N. Crooker, J. A. Joselyn, and J. Feynman (eds.), American Geophysical Press, Washington DC
  • Pevtsov, A.A., Canfield, R.C., Metcalf, T.R., (1995) Astrophys. J., 440, pp. L109
  • Richardson, I.G., Farrugia, C.J., Burlaga, L.F., (1991) 22nd. Int. Cosmic Ray Conf., 93, p. 9
  • Richardson, I.G., (1997) Coronal Mass Ejections, Geophysical Monograph 99, p. 189. , N. Crooker, J. A. Joselyn, and J. Feynman (eds.), American Geophysical Press, Washington DC
  • Rust, D.M., (1994) Geophys. Res. Lett., 21, p. 241
  • Rust, D.M., Kumar, A., (1996) Astrophys. J., 464, pp. L199
  • Scherrer, P.H., Bogart, R.S., Bush, R.I., (1995) Solar Phys., 162, p. 129
  • Seehafer, N., (1990) Solar Phys., 125, p. 219
  • Shodhan, S., Crooker, N.U., Kahler, S.W., Fitzenreiter, R.J., Larson, D.E., (2000) J. Geophys. Res., 105, p. 27261
  • Sterling, A.C., Hudson, H.S., (1997) Astrophys. J., 491, pp. L55
  • Thompson, B.J., Gurman, J.B., Neupert, W.M., (1999) Astrophys. J., 517, pp. L151
  • Tsuneta, S., (1991) Solar Phys., 136, p. 37
  • Van Driel-Gesztelyi, L., Schmieder, B., Poedts, S., (2001) Proc. SOLSPA-2001 Euroconference, , ESA SP-477, in press
  • Webb, D.F., Cliver, E.W., Crooker, N.U., St. Cry, O.C., Thompson, B.J., (2000) J. Geophys. Res., 105, p. 7491
  • Yan, Y., Yang, L., Maki, A., Fengsi, W., (2001) Solar Phys., 201, p. 337
  • Yurchyshyn, V.B., Wang, H., Goode, P.R., Deng, Y., (2001) Astrophys. J., 563, p. 381
  • Zarro, D., Sterling, A., Thompson, B., Hudson, H., Nitta, N., (1999) Astrophys. J., 520, p. 139
  • Zhao, X.P., Hoeksema, J.T., Marubashi, K., (2001) J. Geophys. Res., 106, p. 15643
  • Zirin, H., (1988) Astrophysics of the Sun, p. 308. , Cambridge University Press, Cambridge

Citas:

---------- APA ----------
Green, L.M., López Fuentes, M.C., Mandrini, C.H., Démoulin, P., Van Driel-Gesztelyi, L. & Culhane, J.L. (2002) . The magnetic helicity budget of a CME-prolific active region. Solar Physics, 208(1), 43-68.
http://dx.doi.org/10.1023/A:1019658520033
---------- CHICAGO ----------
Green, L.M., López Fuentes, M.C., Mandrini, C.H., Démoulin, P., Van Driel-Gesztelyi, L., Culhane, J.L. "The magnetic helicity budget of a CME-prolific active region" . Solar Physics 208, no. 1 (2002) : 43-68.
http://dx.doi.org/10.1023/A:1019658520033
---------- MLA ----------
Green, L.M., López Fuentes, M.C., Mandrini, C.H., Démoulin, P., Van Driel-Gesztelyi, L., Culhane, J.L. "The magnetic helicity budget of a CME-prolific active region" . Solar Physics, vol. 208, no. 1, 2002, pp. 43-68.
http://dx.doi.org/10.1023/A:1019658520033
---------- VANCOUVER ----------
Green, L.M., López Fuentes, M.C., Mandrini, C.H., Démoulin, P., Van Driel-Gesztelyi, L., Culhane, J.L. The magnetic helicity budget of a CME-prolific active region. Sol. Phys. 2002;208(1):43-68.
http://dx.doi.org/10.1023/A:1019658520033