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Abstract:

Sudden Galactic Cosmic Ray (GCR) intensity decreases are related to the passage of Interplanetary Coronal Mass Ejections (ICMEs). These phenomena are also known as Forbush Decreases (FDs). The deepest FDs are associated with the passage of Magnetic Clouds (MCs). In this preliminary study we select "non-interacting" MCs associated with FDs observed from ground Neutron Monitors in the period 1996-2009, with the aim of reducing the complexity and the number of parameters involved in the GCR-MC interactions. We introduce a method to determine properties of the "ejecta component" of the FD. We analyze properties of the ejecta component in combination with properties of MCs. From the resulting selection of events, we find that those FDs containing ejecta components show stronger correlations with MC parameters than our total sample of events. © 2013 International Astronomical Union.

Registro:

Documento: Artículo
Título:Galactic cosmic ray decreases associated with non-interacting magnetic clouds in the 23rd solar cycle
Autor:Masías-Meza, J.J.; Dasso, S.
Filiación:Departamento de Física (FCEN-UBA-IFIBA), BsAs, Argentina
Departamento de Física (FCEN-UBA), BsAs, Argentina
Instituto de Astronomía y Física Del Espacio (UBA-CONICET), BsAs, Argentina
Idioma: Inglés
Palabras clave:Cosmic rays; Sun: coronal mass ejections (CMEs); Sun: magnetic fields
Año:2014
Volumen:8
Número:S300
Página de inicio:483
Página de fin:484
DOI: http://dx.doi.org/10.1017/S1743921313011654
Título revista:Proceedings of the International Astronomical Union
Título revista abreviado:Proc. Int. Astron. Union
ISSN:17439213
Registro:http://digital.bl.fcen.uba.ar/collection/paper/document/paper_17439213_v8_nS300_p483_MasiasMeza

Referencias:

  • Dasso, S., Mandrini, C.H., Démoulin, P., Luoni, M.L., (2006) A&A, 455, p. 349
  • Gulisano, A.M., Démoulin, P., Dasso, S., Ruiz, M.E., Marsch, E., (2010) A&A, A39, p. 509
  • Lepping, R.P., Berdichevsky, D.B., Ferguson, T.J., (2003) J. Geophys Res, 108, p. 1356
  • Richardson, I.G., Cane, H.V., (2011) Solar Phys, 270, p. 609
  • Richardson, I.G., Cane, H.V., (2010) Solar Phys, 264, p. 189

Citas:

---------- APA ----------
Masías-Meza, J.J. & Dasso, S. (2014) . Galactic cosmic ray decreases associated with non-interacting magnetic clouds in the 23rd solar cycle. Proceedings of the International Astronomical Union, 8(S300), 483-484.
http://dx.doi.org/10.1017/S1743921313011654
---------- CHICAGO ----------
Masías-Meza, J.J., Dasso, S. "Galactic cosmic ray decreases associated with non-interacting magnetic clouds in the 23rd solar cycle" . Proceedings of the International Astronomical Union 8, no. S300 (2014) : 483-484.
http://dx.doi.org/10.1017/S1743921313011654
---------- MLA ----------
Masías-Meza, J.J., Dasso, S. "Galactic cosmic ray decreases associated with non-interacting magnetic clouds in the 23rd solar cycle" . Proceedings of the International Astronomical Union, vol. 8, no. S300, 2014, pp. 483-484.
http://dx.doi.org/10.1017/S1743921313011654
---------- VANCOUVER ----------
Masías-Meza, J.J., Dasso, S. Galactic cosmic ray decreases associated with non-interacting magnetic clouds in the 23rd solar cycle. Proc. Int. Astron. Union. 2014;8(S300):483-484.
http://dx.doi.org/10.1017/S1743921313011654