Latitudinal Dependence of Cosmic Rays Modulation at 1 AU and Interplanetary Magnetic Field Polar Correction
Joint Authors
Gervasi, M.
Bobik, P.
Rancoita, P. G.
Kudela, K.
Grandi, D.
Tacconi, M.
Boschini, M. J.
Pensotti, S.
Boella, G.
Consolandi, C.
Rozza, D.
Della Torre, S.
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-01-10
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
The cosmic rays differential intensity inside the heliosphere, for energy below 30 GeV/nuc, depends on solar activity and interplanetary magnetic field polarity.
This variation, termed solar modulation, is described using a 2D (radius and colatitude) Monte Carlo approach for solving the Parker transport equation that includes diffusion, convection, magnetic drift, and adiabatic energy loss.
Since the whole transport is strongly related to the interplanetary magnetic field (IMF) structure, a better understanding of his description is needed in order to reproduce the cosmic rays intensity at the Earth, as well as outside the ecliptic plane.
In this work an interplanetary magnetic field model including the standard description on ecliptic region and a polar correction is presented.
This treatment of the IMF, implemented in the HelMod Monte Carlo code (version 2.0), was used to determine the effects on the differential intensity of Proton at 1 AU and allowed one to investigate how latitudinal gradients of proton intensities, observed in the inner heliosphere with the Ulysses spacecraft during 1995, can be affected by the modification of the IMF in the polar regions.
American Psychological Association (APA)
Bobik, P.& Boella, G.& Boschini, M. J.& Consolandi, C.& Della Torre, S.& Gervasi, M.…[et al.]. 2013. Latitudinal Dependence of Cosmic Rays Modulation at 1 AU and Interplanetary Magnetic Field Polar Correction. Advances in Astronomy،Vol. 2013, no. 2013, pp.1-12.
https://search.emarefa.net/detail/BIM-498543
Modern Language Association (MLA)
Bobik, P.…[et al.]. Latitudinal Dependence of Cosmic Rays Modulation at 1 AU and Interplanetary Magnetic Field Polar Correction. Advances in Astronomy No. 2013 (2013), pp.1-12.
https://search.emarefa.net/detail/BIM-498543
American Medical Association (AMA)
Bobik, P.& Boella, G.& Boschini, M. J.& Consolandi, C.& Della Torre, S.& Gervasi, M.…[et al.]. Latitudinal Dependence of Cosmic Rays Modulation at 1 AU and Interplanetary Magnetic Field Polar Correction. Advances in Astronomy. 2013. Vol. 2013, no. 2013, pp.1-12.
https://search.emarefa.net/detail/BIM-498543
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-498543