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Título del libro: Proceedings Of The 33rd International Cosmic Rays Conference, Icrc 2013
Título del capítulo: A catalog of forbush decreases of the cosmic radiation for the period 1997-2007

Autores UNAM:
OMAR OCTAVIO MUSALEM RAMIREZ; JOSE FRANCISCO VALDES GALICIA;
Autores externos:

Idioma:
Inglés
Año de publicación:
2013
Palabras clave:

Cosmology; Solar energy; Solar system; Cosmic ray intensity; Forbush decrease; Interaction region; Interplanetary coronal mass ejections; Interplanetary shocks; Mexico City; Neutron monitors; Solar wind data; Cosmic rays


Resumen:

We developed a catalog of Forbush decreases (Fd), comprising the major part of solar cycle 23 (1996-2008). With the available data (interplanetary data kindly provided by R. Schwenn) we identified three different interplanetary phenomena that could be associated with the Fd: Interplanetary Coronal Mass Ejections (ICME), Corrotating interaction regions (CIR), and Interplanetary shocks (IS); additionally there was a set of Fd not associated with any of the three phenomena identified. A discussion of plausible causes for this fourth set will be presented.To analyze the Fds, we used data from three neutron monitors representing low, medium and high cut-off: Oulu (Finland), Moscow (Russia) and Mexico City Images of the catalog contain solar wind data plots (magnetic field and plasma data), the Kp index and plots of the cosmic ray intensity in the three stations mentioned. © 2013 Sociedade Brasileira de Fisica. All Rights Reserved.


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