Galactic cosmic ray decreases associated with non-interacting magnetic clouds in the 23rd solar cycle
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 &...
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paper:paper_17439213_v8_nS300_p483_MasiasMeza2023-06-08T16:28:10Z Galactic cosmic ray decreases associated with non-interacting magnetic clouds in the 23rd solar cycle Dasso, Sergio Ricardo Cosmic rays Sun: coronal mass ejections (CMEs) Sun: magnetic fields 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. Fil:Dasso, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2013 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_17439213_v8_nS300_p483_MasiasMeza http://hdl.handle.net/20.500.12110/paper_17439213_v8_nS300_p483_MasiasMeza |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
topic |
Cosmic rays Sun: coronal mass ejections (CMEs) Sun: magnetic fields |
spellingShingle |
Cosmic rays Sun: coronal mass ejections (CMEs) Sun: magnetic fields Dasso, Sergio Ricardo Galactic cosmic ray decreases associated with non-interacting magnetic clouds in the 23rd solar cycle |
topic_facet |
Cosmic rays Sun: coronal mass ejections (CMEs) Sun: magnetic fields |
description |
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. |
author |
Dasso, Sergio Ricardo |
author_facet |
Dasso, Sergio Ricardo |
author_sort |
Dasso, Sergio Ricardo |
title |
Galactic cosmic ray decreases associated with non-interacting magnetic clouds in the 23rd solar cycle |
title_short |
Galactic cosmic ray decreases associated with non-interacting magnetic clouds in the 23rd solar cycle |
title_full |
Galactic cosmic ray decreases associated with non-interacting magnetic clouds in the 23rd solar cycle |
title_fullStr |
Galactic cosmic ray decreases associated with non-interacting magnetic clouds in the 23rd solar cycle |
title_full_unstemmed |
Galactic cosmic ray decreases associated with non-interacting magnetic clouds in the 23rd solar cycle |
title_sort |
galactic cosmic ray decreases associated with non-interacting magnetic clouds in the 23rd solar cycle |
publishDate |
2013 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_17439213_v8_nS300_p483_MasiasMeza http://hdl.handle.net/20.500.12110/paper_17439213_v8_nS300_p483_MasiasMeza |
work_keys_str_mv |
AT dassosergioricardo galacticcosmicraydecreasesassociatedwithnoninteractingmagneticcloudsinthe23rdsolarcycle |
_version_ |
1768542808975605760 |