Hostname: page-component-586b7cd67f-t7fkt Total loading time: 0 Render date: 2024-11-23T22:47:44.920Z Has data issue: false hasContentIssue false
  • English
  • Français

Magnetic clouds along the solar cycle: expansion and magnetic helicity

Published online by Cambridge University Press:  05 July 2012

Sergio Dasso ,
Pascal Démoulin  and
Adriana M. Gulisano
Sergio Dasso
Affiliation:
Instituto de Astronomía y Física del Espacio, CONICET-UBA, CC. 67, Suc. 28, 1428 Buenos Aires, Argentina email: [email protected] Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina
Pascal Démoulin
Affiliation:
Observatoire de Paris, LESIA, UMR 8109 (CNRS), F-92195 Meudon Principal Cedex, France
Adriana M. Gulisano
Affiliation:
Instituto de Astronomía y Física del Espacio, CONICET-UBA, CC. 67, Suc. 28, 1428 Buenos Aires, Argentina email: [email protected] Instituto Antártico Argentino (DNA), Cerrito 1248, Buenos Aires, Argentina
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Magnetic clouds (MCs) are objects of extreme importance in the heliosphere. They have a major role on releasing magnetic helicity from the Sun (with crucial consequences on the solar dynamo), they are the hugest transient object in the interplanetary medium, and the main actors for the Sun-Earth coupling. The comparison between models and observations is beginning to clarify several open questions on MCs, such as their internal magnetic configuration and their interaction with the ambient solar wind. Due to the decay of the solar wind pressure with the distance to the Sun, MCs are typically in expansion. However, their detailed and local expansion properties depend on their environment plasma properties. On the other hand, while it is well known that the solar cycle determines several properties of the heliosphere, the effects of the cycle on MC properties are not so well understood. In this work we review two major properties of MCs: (i) their expansion, and (ii) the magnetic flux and helicity that they transport through the interplanetary medium. We find that the amount of magnetic flux and helicity released via MCs during the last solar minimum (years 2007-2009) was significantly lower than in the previous one (years 1995-1997). Moreover, both MC size and mean velocity are in phase with the solar cycle while the expansion rate is weakly variable and has no relationship with the cycle.

Keywords

magnetic fieldsmagnetic cloudscoronal mass ejections (CMEs)solar windinterplanetary mediumplasmas
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Symposium S286: Comparative Magnetic Minima: Characterizing quiet times in the Sun and Stars , October 2011 , pp. 139 - 148
Copyright
Copyright © International Astronomical Union 2012

References

Attrill, G., Nakwacki, M. S., Harra, L. K. et al. , 2006, Sol. Phys., 238, 117CrossRefGoogle Scholar
Berdichevsky, D. B., Lepping, R. P., & Farrugia, C. J. 2003, Phys. Rev. E, 67, 036405CrossRefGoogle Scholar
Berger, M. A. 1984, Geophys. Astrophys. Fluid Dyn., 30, 79CrossRefGoogle Scholar
Burlaga, L., Sittler, E., Mariani, F., & Schwenn, R. 1981, J. Geophys. Res., 86, 6673CrossRefGoogle Scholar
Burlaga, L. F. 1988, J. Geophys. Res., 93, 7217CrossRefGoogle Scholar
Burlaga, L. F. 1995, Interplanetary magnetohydrodynamics (Oxford University Press, New York)CrossRefGoogle Scholar
Cid, C., Hidalgo, M. A., Nieves-Chinchilla, T., Sequeiros, J., & Viñas, A. F. 2002, Sol. Phys., 207, 187CrossRefGoogle Scholar
Cremades, H., Mandrini, C. H., & Dasso, S. 2011, Sol. Phys., 274, 233CrossRefGoogle Scholar
Dasso, S. 2009, in IAU Symposium, Vol. 257, IAU Symposium, ed. Gopalswamy, N. & Webb, D. F., pp. 379–389Google Scholar
Dasso, S., Gulisano, A. M., Mandrini, C. H., & Démoulin, P. 2005a, Advances in Space Research, 35, 2172CrossRefGoogle Scholar
Dasso, S., Mandrini, C. H., Démoulin, P., Luoni, M. L., & Gulisano, A. M. 2005b, Adv. Spa. Res., 35, 711CrossRefGoogle Scholar
Dasso, S., Nakwacki, M., Démoulin, P., & Mandrini, C. H. 2007, Sol. Phys., 244, 115CrossRefGoogle Scholar
Dasso, S., Mandrini, C. H., Schmieder, B. et al. , 2009, J. Geophys. Res., 114, A02109Google Scholar
de Toma, G. 2011, Sol. Phys., 274, 195CrossRefGoogle Scholar
de Toma, G. 2012, This volumeGoogle Scholar
Démoulin, P. 2007, Adv. Spa. Res., 39, 11, 1674CrossRefGoogle Scholar
Démoulin, P. & Dasso, S. 2009a, Astron. Astrophys., 498, 551Google Scholar
Démoulin, P. & Dasso, S. 2009b, Astron. Astrophys., 507, 969CrossRefGoogle Scholar
Démoulin, P., Nakwacki, M. S., Dasso, S., & Mandrini, C. H. 2008, Sol. Phys., 250, 347CrossRefGoogle Scholar
Farrugia, C. J., Janoo, L. A., Torbert, R. B. et al. , 1999, in Habbal, S. R., Esser, R., Hollweg, J. V., Isenberg, P. A. (eds.), Solar Wind Nine, AIP Conf. Proc., Vol. 471, 745Google Scholar
Farrugia, C. J., Osherovich, V. A., & Burlaga, L. F. 1995, J. Geophys. Res., 100, 12293CrossRefGoogle Scholar
Gonzalez, W. D., Tsurutani, B. T., & Clúa de Gonzalez, A. L. 1999, Space Sci. Rev., 88, 529CrossRefGoogle Scholar
Gulisano, A. M., Dasso, S., Mandrini, C. H., & Démoulin, P. 2005, JASTP, 67, 1761Google Scholar
Gulisano, A. M., Démoulin, P., Dasso, S., Ruiz, M. E., & Marsch, E. 2010, Astron. Astrophys., 509, A39CrossRefGoogle Scholar
Harra, L. K., Crooker, N. U., Mandrini, C. H. et al. , 2007, Sol. Phys., 244, 95CrossRefGoogle Scholar
Hidalgo, M. A., Cid, C., Vinas, A. F., & Sequeiros, J. 2002, J. Geophys. Res., 107, 1002Google Scholar
Hu, Q. & Sonnerup, B. U. Ö. 2001, Geophys. Res. Lett., 28, 467CrossRefGoogle Scholar
Jian, L. K., Russell, C. T., & Luhmann, J. G. 2011, Sol. Phys., 274, 321CrossRefGoogle Scholar
Klein, L. W. & Burlaga, L. F. 1982, J. Geophys. Res., 87, 613CrossRefGoogle Scholar
Leitner, M., Farrugia, C. J., Möstl, C. et al. , 2007, J. Geophys. Res., 112, A06113Google Scholar
Lepping, R. P., Berdichevsky, D. B., Szabo, A., Arqueros, C., & Lazarus, A. J. 2003, Sol. Phys., 212, 425CrossRefGoogle Scholar
Lepping, R. P., Wu, C.-C., Berdichevsky, D. B., & Szabo, A. 2011, Sol. Phys., 274, 345CrossRefGoogle Scholar
Liu, Y., Luhmann, J. G., Huttunen, K. E. J. et al. , 2008, Astrophys. J. Lett., 677, L133CrossRefGoogle Scholar
Liu, Y., Richardson, J. D., & Belcher, J. W. 2005, Planetary Spa. Sci., 53, 3CrossRefGoogle Scholar
Longcope, D., Beveridge, C., Qiu, J. et al. , 2007, Sol. Phys., 244, 45Google Scholar
Lundquist, S. 1950, Ark. Fys., 2, 361Google Scholar
Luoni, M. L., Mandrini, C. H., Dasso, S., van Driel-Gesztelyi, L., & Démoulin, P. 2005, JASTP 67, 1734Google Scholar
Lynch, B. J., Gruesbeck, J. R., Zurbuchen, T. H., & Antiochos, S. K. 2005, J. Geophys. Res., 110, A08107Google Scholar
Manchester, W. B. I., Gombosi, T. I., Roussev, I. et al. , 2004, J. Geophys. Res., 109, A02107Google Scholar
Mandrini, C. H., Nakwacki, M., Attrill, G. et al. , 2007, Sol. Phys., 244, 25Google Scholar
Mandrini, C. H., Pohjolainen, S., Dasso, S. et al. , 2005, Astron. Astrophys., 434, 725Google Scholar
Masson, S., Démoulin, P., Dasso, S., & Klein, K.-L., 2012, Astron. Astrophys., 538, A32CrossRefGoogle Scholar
Möstl, C., Miklenic, C., Farrugia, C. J. et al. , 2008, Annales Geophysicae, 26, 3139CrossRefGoogle Scholar
Nakwacki, M., Dasso, S., Démoulin, P., Mandrini, C. H., & Gulisano, A. M. 2011, Astron. Astrophys., 535, A52CrossRefGoogle Scholar
Nakwacki, M., Dasso, S., Mandrini, C. H., & Démoulin, P. 2008, JASTP, 70, 1318Google Scholar
Owens, M. J., Merkin, V. G., & Riley, P. 2006, J. Geophys. Res., 111, 3104Google Scholar
Qiu, J., Hu, Q., Howard, T. A., & Yurchyshyn, V. B. 2007, Astrophys. J., 659, 758CrossRefGoogle Scholar
Ravindra, B., Yoshimura, K., & Dasso, S. 2011, Astrophys. J., 743, 33CrossRefGoogle Scholar
Riley, P., Linker, J. A., Mikić, Z. et al. , 2003, J. Geophys. Res., 108, 1272Google Scholar
Rodriguez, L., Zhukov, A. N., Dasso, S. et al. , 2008, Annales Geophysicae, 26, 213Google Scholar
Savani, N. P., Owens, M. J., Rouillard, A. P. et al. , 2011, Astrophys. J., 732, 117Google Scholar
Schmieder, B., Démoulin, P., Pariat, E. et al. , 2011, Adv. Spa. Res., 47, 2081CrossRefGoogle Scholar
Shimazu, H. & Vandas, M. 2002, Earth, Planets, and Space, 54, 783CrossRefGoogle Scholar
Vandas, M., Fischer, S., Dryer, M., Smith, Z., & Detman, T. 1995, J. Geophys. Res., 100, 12285CrossRefGoogle Scholar
Vandas, M. & Romashets, E. P. 2003, Astron. Astrophys., 398, 801CrossRefGoogle Scholar
Wang, C., Du, D., & Richardson, J. D. 2005, J. Geophys. Res., 110, A10107Google Scholar