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arXiv 1801.05422astro-ph.SRastro-ph.HEastro-ph.IM
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空间太阳高能质子环境的更新模型

Updated Model of the Solar Energetic Proton Environment in Space

Piers Jiggens, Daniel Heynderickx, Ingmar Sandberg, Pete Truscott, Osku Raukunen, Rami Vainio

摘要:

太阳累积和峰值质子和重离子辐射环境(SAPPHIRE)模型提供了太阳高能粒子(SEP)环境所有方面的环境规格输出。该模型是基于一个彻底清理和仔细处理的数据集。本文讨论了太阳质子模型的演变,并与其他模型和数据进行了比较。本文讨论了基础数据集的建设,建模方法,优化拟合通量分布和外推模型输出,以涵盖从0.1兆电子伏到1 GeV的质子能量范围。该模型提供了任务累积通量,最大事件通量和峰值通量的太阳最大和太阳最小时期的输出。一个新的方法来描述最大事件通量和峰值通量输出的1在x年的SPE。SAPPHIRE质子模型输出与以前的模型,包括CREME 96,ESP-PSYCHIC和JPL模型进行了比较。低能量输出相比,SEP数据从ACE/EPAM,而高能量输出相比,一个新的模型的基础上GLE检测中子散射(NM)。

英文摘要:

The Solar Accumulated and Peak Proton and Heavy Ion Radiation Environment (SAPPHIRE) model provides environment specification outputs for all aspects of the Solar Energetic Particle (SEP) environment. The model is based upon a thoroughly cleaned and carefully processed data set. Herein the evolution of the solar proton model is discussed with comparisons to other models and data. This paper discusses the construction of the underlying data set, the modelling methodology, optimisation of fitted flux distributions and extrapolation of model outputs to cover a range of proton energies from 0.1 MeV to 1 GeV. The model provides outputs in terms of mission cumulative fluence, maximum event fluence and peak flux for both solar maximum and solar minimum periods. A new method for describing maximum event fluence and peak flux outputs in terms of 1-in-x-year SPEs is also described. SAPPHIRE proton model outputs are compared with previous models including CREME96, ESP-PSYCHIC and the JPL model. Low energy outputs are compared to SEP data from ACE/EPAM whilst high energy outputs are compared to a new model based on GLEs detected by Neutron Monitors (NMs).

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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