The HELMOD model in the works for inner and outer heliosphere: From AMS to Voyager probes observations
The HELMOD model in the works for inner and outer heliosphere: From AMS to Voyager probes observations
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DOI：
10.1016/j.asr.2019.04.007
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发表时间：
2019-12-15
影响因子：
2.6
通讯作者：
Rancoita, P. G.
中科院分区：
文献类型：
--
作者：
Boschini, M. J.;Della Torre, S.;Rancoita, P. G.
HELMOD是一种蒙特卡罗程序，用于描述银河系宇宙射线(GCR)通过日光层从星际空间到地球的传输。在目前的HELMOD版本4中，基于Parker方程的调制过程被应用于GCR在日光层内外(即包括日鞘)的传播。HELMOD被证明可以复制由几个探测器，例如Pamela，Bess和AMS-02在太阳周期23-24期间观测到的质子、原子核和电子宇宙射线光谱。特别是，AMS-02观测的前所未有的准确性使人们能够更好地调整关于HELMOD实施的太阳调制机制的描述。此外，HELMOD证明能够再现旅行者号探测器观测到的日光层内外区域直至其边界的通量。(C)2019年空间研委会。爱思唯尔有限公司出版。保留所有权利。
HELMOD is a Monte Carlo code developed to describe the transport of Galactic Cosmic Rays (GCRs) through the heliosphere from the interstellar space to the Earth. In the current HELMOD version 4 the modulation process, based on Parker's equation, is applied to the propagation of GCRs in the inner and outer heliosphere, i.e., including the heliosheath. HELMOD was proved to reproduce protons, nuclei and electrons cosmic rays spectra observed during solar cycles 23-24 by several detectors, for instance, PAMELA, BESS and AMS-02. In particular, the unprecedented accuracy of AMS-02 observations allowed one a better tuning of the description regarding the solar modulation mechanisms implemented in HELMOD. In addition, HELMOD demonstrated to be capable of reproducing the fluxes observed by the Voyager probes in the inner and outer regions of heliosphere up to its border. (C) 2019 COSPAR. Published by Elsevier Ltd. All rights reserved.