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相关论文: Revisiting Empirical Solar Energetic Particle Scal…

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Aims. The space radiation environment conditions and the maximum expected coronal mass ejection (CME) speed are being assessed through the investigation of scaling laws between the peak proton flux and fluence of Solar Energetic Particle…

太阳与恒星天体物理 · 物理学 2024-10-02 Athanasios Papaioannou , Konstantin Herbst , Tobias Ramm , David Lario , Astrid M. Veronig

In order to discuss the potential impact of solar 'superflares' on space weather, we investigated statistical relations among energetic proton peak flux with energy higher than $ 10 \rm MeV$ ($F_p$), CME speed near the Sun ($V_{CME}$)…

太阳与恒星天体物理 · 物理学 2016-12-14 Takuya Takahashi , Yoshiyuki Mizuno , Kazunari Shibata

Solar energetic particles (SEPs) are an important space radiation source, especially for the space weather environment in the inner heliosphere. The energy spectrum of SEP events is crucial both for evaluating their radiation effects and…

太阳与恒星天体物理 · 物理学 2024-10-18 Yubao Wang , Jingnan Guo

Extreme Solar Energetic Particle Events (ESPEs) were identified almost a decade ago, providing context for super events unleashed by our host star, the Sun. Their assumed solar origin drives the question of their ``worst-case" impact, which…

空间物理 · 物理学 2025-04-09 Konstantin Herbst , Athanasios Papaioannou

A statistical analysis of the relationship between solar energetic particles (SEPs) and properties of solar flares and coronal mass ejections (CMEs) is presented. SEP events during solar cycle 23 are selected which are associated with solar…

太阳与恒星天体物理 · 物理学 2014-12-18 M. Dierckxsens , K. Tziotziou , S. Dalla , I. Patsou , M. S. Marsh , N. B. Crosby , O. Malandraki , G. Tsiropoula

Large solar eruptive events, including solar flares and coronal mass ejections (CMEs), can lead to solar energetic particle (SEP) events. During these events, protons are accelerated up to several GeV and pose numerous space weather risks.…

太阳与恒星天体物理 · 物理学 2023-03-08 Charlotte Waterfall , Silvia Dalla , Osku Raukunen , Daniel Heynderickx , Piers Jiggens , Rami Vainio

We study the influence of the large-scale interplanetary magnetic field configuration on the solar energetic particles (SEPs) as detected at different satellites near Earth and on the correlation of their peak intensities with the parent…

太阳与恒星天体物理 · 物理学 2014-03-05 R. Miteva , K. -L. Klein , O. Malandraki , G. Dorrian

Solar energetic particle (SEP) events are related to flares and coronal mass ejections (CMEs). This work is a new investigation of statistical relationships between SEP peak intensities - deka-MeV protons and near-relativistic electrons -…

太阳与恒星天体物理 · 物理学 2014-11-18 G. Trottet , S. Samwel , K. -L. Klein , T. Dudok de Wit , R. Miteva

Proceeding from close association between solar eruptions, flares, shock waves, and CMEs, we analyze relations between bursts at 35 GHz recorded with the Nobeyama Radio Polarimeters during 1990-2012, on the one hand, and solar energetic…

太阳与恒星天体物理 · 物理学 2015-06-16 V. Grechnev , N. Meshalkina , I. Chertok , V. Kiselev

Fluences of solar energetic particles (SEPs) are not easy to evaluate, especially for high-energy events (i.e. ground-level enhancements, GLEs). Earlier estimates of event-integrated SEP fluences for GLEs were based on partly outdated…

太阳与恒星天体物理 · 物理学 2021-03-31 Sergey A. Koldobskiy , Osku Raukunen , Rami Vainio , Gennady A. Kovaltsov , Ilya G. Usoskin

In this work, we examine the association between solar active regions and 152 solar flares, coronal mass ejections, and solar energetic particle (SEP) events over solar cycles 23-24 (1997-2017). The CDAW center's GOES data in the energy…

太阳与恒星天体物理 · 物理学 2025-04-21 Raj Kumar , Ramesh Chandra , Bimal Pande , Seema Pande

We probe the spectral hardening of solar flares emission in view of associated solar proton events (SEPs) at earth and coronal mass ejection (CME) acceleration as a consequence. In this investigation we undertake 60 SEPs of the Solar Cycle…

太阳与恒星天体物理 · 物理学 2013-10-22 Sharad C Tripathi , Parvaiz A Khan , Aslam A M , A K Gwal , P K Purohit , Rajmal Jain

Solar energetic particle (SEP) events are one of the most crucial aspects of space weather. Their prediction depends on various factors including the source solar eruptions such as flares and coronal mass ejections (CMEs). The Geostationary…

太阳与恒星天体物理 · 物理学 2023-08-16 Sumanth A. Rotti , Petrus C. Martens

Solar energetic particles (SEPs), including protons and heavy ions, are believed to be accelerated either by CME shock or by magnetic reconnection. The latter also produces solar flares, in which the white light flares (WLFs) are among the…

太阳与恒星天体物理 · 物理学 2018-01-16 Nengyi Huang , Yan Xu , Haimin Wang

The most powerful explosions on the Sun [...] drive the most severe space-weather storms. Proxy records of flare energies based on SEPs in principle may offer the longest time base to study infrequent large events. We conclude that one…

Aims. We studied the first multi-spacecraft high-energy solar energetic particle (SEP) event of solar cycle 25, which triggered a ground level enhancement (GLE) on 28 October 2021, using data from multiple observers that were widely…

Large solar proton events (SPEs) affect the solar-terrestrial space environment and become a very important aspect in space weather research. In this work, we statistically investigate 78 solar proton events of 1996-2011 and find that there…

高能天体物理现象 · 物理学 2015-02-12 Hongqing He , Weixing Wan

How impulsive solar energetic particle (SEP) events are produced by magnetic-reconnection-driven processes during solar flares remains an outstanding question. Here we report a short-duration SEP event associated with an X-class eruptive…

太阳与恒星天体物理 · 物理学 2025-03-11 Meiqi Wang , Bin Chen , Trevor Knuth , Christina Cohen , Jeongwoo Lee , Haimin Wang , Sijie Yu

The probability of occurrence of extreme solar particle events (SPEs) with the fluence of (>30 MeV) protons F30>10^{10} cm^{-2} is evaluated based on data of cosmogenic isotopes 14C and 10Be in terrestrial archives centennial-millennial…

太阳与恒星天体物理 · 物理学 2013-05-23 I. G. Usoskin , G. A. Kovaltsov

We present a new empirical model to predict solar energetic particle (SEP) event-integrated and peak intensity spectra between 10 and 130 MeV at 1 AU, based on multi-point spacecraft measurements from the Solar TErrestrial RElations…

太阳与恒星天体物理 · 物理学 2021-02-24 Alessandro Bruno , Ian G. Richardson
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