中文
相关论文

相关论文: High Energy Solar Particle Events and their Associ…

200 篇论文

We study solar energetic particle (SEP) events during multiple solar eruptions. The analysed sequences, on 24-26 November 2000, 9-13 April 2001, and 22-25 August 2005, consisted of halo-type coronal mass ejections (CMEs) that originated…

太阳与恒星天体物理 · 物理学 2015-12-16 Silja Pohjolainen , Firas Al-Hamadani , Eino Valtonen

Solar energetic particles (SEPs) accelerated from shocks driven by coronal mass ejections (CMEs) are one of the major causes of geomagnetic storms on Earth. Therefore, it is necessary to predict the occurrence and intensity of such…

太阳与恒星天体物理 · 物理学 2021-02-26 Anitha Ravishankar , Grzegorz Michalek

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

One of the earliest indicators of the importance of shock acceleration of solar energetic particles (SEPs) was the broad spatial extent of the "gradual" SEP events produced as the shock waves, driven by wide, fast coronal mass ejections…

太阳与恒星天体物理 · 物理学 2022-08-31 Donald V. Reames

This paper updates the influence of environmental and source factors of shocks driven by coronal mass ejections (CMEs) that are likely to influence the solar energetic particle (SEP) events. The intensity variation due to CME interaction…

太阳与恒星天体物理 · 物理学 2015-05-30 Nat Gopalswamy

Gradual solar energetic particle (SEP) events, usually attributed to shock waves driven by coronal mass ejections (CMEs), show a wide variety of temporal behaviors. For example, TO, the >10 MeV proton onset time with respect to the launch…

太阳与恒星天体物理 · 物理学 2023-03-29 Kosuke Kihara , Ayumi Asai , Seiji Yashiro , Nariaki V. Nitta

One of the sources of solar energetic particle (SEP) events is shocks that are driven by fast coronal mass ejections (CMEs). They can accelerate SEPs up to relativistic energies and are attributed to the largest SEP events. New studies…

太阳与恒星天体物理 · 物理学 2023-06-21 N. Talebpour Sheshvan , N. Dresing , R. Vainio , A. Afanasiev , D. E. Morosan

On September 10 2017, a fast coronal mass ejection (CME) erupted from the active region (AR) 12673, leading to a ground level enhancement (GLE) event at Earth. Using the 2D improved Particle Acceleration and Transport in the Heliosphere…

空间物理 · 物理学 2020-09-30 Zhe-Yi Ding , Gang Li , Jun-Xiang Hu , Shuai Fu

We report on four large filament eruptions (FEs) from solar cycles 23 and 24 that were associated with large solar energetic particle (SEP) events and interplanetary type II radio bursts. The post-eruption arcades corresponded to mostly…

太阳与恒星天体物理 · 物理学 2015-06-11 N. Gopalswamy , P. Makela , S. Akiyama , S. Yashiro , H. Xie , N. Thakur , S. W. Kahler

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

We study the abundances of the elements He through Pb in Fe-rich impulsive solar energetic-particle (SEP) events with measurable abundances of ions with atomic number Z>2 observed on the Wind spacecraft, and their relationship with coronal…

太阳与恒星天体物理 · 物理学 2015-01-06 Donald V. Reames , Edward W. Cliver , Stephen W. Kahler

Solar energetic particle (SEP) events are associated with coronal mass ejections (CMEs) and/or solar flares. SEPs travel through the corona and interplanetary space to reach Earth, posing a radiation hazard to spacecraft and astronauts…

太阳与恒星天体物理 · 物理学 2024-11-07 Lei Cheng , Ming Zhang , Ryun Young Kwon , David Lario

We present a study of the 2014 January 6 solar energetic particle (SEP) event, which produced a small ground level enhancement (GLE), making it the second GLE of this unusual solar cycle 24. This event was primarily observed by the South…

太阳与恒星天体物理 · 物理学 2015-06-22 N. Thakur , N. Gopalswamy , H. Xie , P. Makela , S. Yashiro , S. Akiyama , J. M. Davila

We report on further evidence that solar energetic particles are organized by the kinematic properties of coronal mass ejections (CMEs)[1]. In particular, we focus on the starting frequency of type II bursts, which is related to the…

太阳与恒星天体物理 · 物理学 2017-10-11 N Gopalswamy , P Mäkelä , S Yashiro , N Thakur , S Akiyama , H Xie

An outstanding problem in heliospheric physics is understanding the acceleration of solar energetic particles (SEP) in coronal mass ejections (CMEs) and flares. A fundamental question is whether the acceleration occurs in interplanetary…

太阳与恒星天体物理 · 物理学 2019-10-09 Kamen Kozarev , Maher A. Dayeh , Ashraf Farahat

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

To improve the forecasting capability of impactful solar energetic particle (SEP) events, the relation between coronal mass ejections (CMEs) and SEP events needs to be better understood. Here we present a statistical study of SEP…

太阳与恒星天体物理 · 物理学 2020-09-09 Kosuke Kihara , Yuwei Huang , Nobuhiko Nishimura , Nariaki V. Nitta , Seiji Yashiro , Kiyoshi Ichimoto , Ayumi Asai

We study the solar energetic particle (SEP) event associated with the 2012 July 23 extreme solar storm, for which STEREO and the spacecraft at L1 provide multi-point remote sensing and in situ observations. The extreme solar storm, with a…

太阳与恒星天体物理 · 物理学 2016-08-31 Bei Zhu , Ying D. Liu , Janet G. Luhmann , Huidong Hu , Rui Wang , Zhongwei Yang

Coronal mass ejections (CMEs) are thought to drive collisionless shocks in the solar corona, which in turn have been shown capable of accelerating solar energetic particles (SEPs) in minutes. It has been notoriously difficult to extract…

太阳与恒星天体物理 · 物理学 2015-06-19 Kamen A. Kozarev , John C. Raymond , Vasili V. Lobzin , Michael Hammer

Solar energetic particle (SEP) events have been observed by the Parker Solar Probe (PSP) spacecraft since its launch in 2018. These events include sources from solar flares and coronal mass ejections (CMEs). Onboard PSP is the IS\(\odot\)IS…

‹ 上一页 1 2 3 10 下一页 ›