Results 91 to 100 of about 4,375,884 (204)

Simulation of the 2010 September 9 Solar Energetic Particle Event by Using a Data-constrained Transport Model

The Astrophysical Journal
Solar energetic particles (SEPs) can cause damage to spacecraft systems and affect human activities in space. On 2010 September 9, a gradual SEP event was observed by spacecraft STEREO-A, Solar and Heliospheric Observatory (SOHO), and STEREO-B at widely ...
Xinyi Tao, Fang Shen, Xueshang Feng, Wanyi Lian, Bofeng Tang, Yi Yang   +5 more
doaj   +1 more source

MHD simulations of coronal heating [PDF]

, 2015
The problem of heating the solar corona requires the conversion of magnetic energy into thermal energy. Presently, there are two promising mechanisms for heating the solar corona: wave heating and nanoflare heating.
Tam, Kuan V.
core   +2 more sources

The Sun's global photospheric and coronal magnetic fields : observations and models [PDF]

, 2012
2012LRSP....9....6M Funding: STFC, the Leverhulme Trust and European Commission’s Seventh Framework Programme (FP7/2007-2013) under the grant agreement SWIFF (project no.
Anthony Yeates, Yeates, A.R., Duncan Mackay, Mackay, D.H., Yeates, Anthony Robinson, Mackay, Duncan Hendry   +5 more
core   +1 more source

Acceleration of Electrons and Ions by an “Almost” Astrophysical Shock in the Heliosphere

The Astrophysical Journal Letters
Collisionless shock waves, ubiquitous in the Universe, are crucial for particle acceleration in various astrophysical systems. Currently, the heliosphere is the only natural environment available for their in situ study.
Immanuel Christopher Jebaraj, Oleksiy Agapitov, Vladimir Krasnoselskikh, Laura Vuorinen, Michael Gedalin, Kyung-Eun Choi, Erika Palmerio, Nicolas Wijsen, Nina Dresing, Christina Cohen, Athanasios Kouloumvakos, Michael Balikhin, Rami Vainio, Emilia Kilpua, Alexandr Afanasiev, Jaye Verniero, John Grant Mitchell, Domenico Trotta, Matthew Hill, Nour Raouafi, Stuart D. Bale   +20 more
doaj   +1 more source

High-resolution Simulation of Coronal Mass Ejection–Corotating Interaction Region Interactions: Mesoscale Solar Wind Structure Formation Observable by the SWIFT Constellation

The Astrophysical Journal
We present an unprecedented simulation of how two large-scale heliospheric transients—a coronal mass ejection (CME) and a corotating stream interaction region—collide, producing a dramatic increase in the complexity of the CME due to formation of ...
W. B. Manchester IV, Nishtha Sachdeva, Emilia Kilpua, Matti Ala-Lahti, Shirsh Lata Soni, Zhenguang Huang, Hongfan Chen, Aniket Jivani, Bart van der Holst, Adam Szabo, Mojtaba Akhavan-Tafti   +10 more
doaj   +1 more source

Variability of East–West Asymmetry in Energetic Storm Particle Intensities and Coronal Mass Ejection Deflection during Solar Cycles 23 and 24

The Astrophysical Journal
We investigate the variability of the east–west asymmetry in energetic storm particle (ESP) heavy ion intensities at interplanetary shocks driven by coronal mass ejections (CMEs) during solar cycles (SCs) 23 and 24.
A. Santa Fe Dueñas, R. W. Ebert, Gang Li, Zheyi Ding, M. A. Dayeh, M. I. Desai, L. K. Jian, N. Lugaz, B. Zhuang, N. Al-Haddad   +9 more
doaj   +1 more source

High-resolution simulation of propagation of interplanetary shock wave caused by a coronal mass ejection observed on November 13, 2003 [PDF]

, 2005
P(論文)We simulated the three-dimensional (3D) propagation of a shock wave caused by a coronal mass ejection (CME) on November 13, 2003. The 3D simulations were performed using a high-resolution adaptive mesh refinement (AMR) technique.
Yamashita, Kazuyuki, Ogawa, Yasunobu, Den, Mitsue, Tanaka, Takashi   +3 more
core   +1 more source

Multiviewpoint Tracking of a Coronal Mass Ejection Driven Shock Propagating to Mars: Implications for Space Weather Forecasting

The Astrophysical Journal
We present a case study of a coronal mass ejection (CME) that was associated with in situ signatures at Mars and erupted on 2025 March 28. We estimate the time of arrival (ToA) of its associated shock at Mars, focusing on the role of remote sensing ...
Eleni Nikou, Evangelos Paouris, Norberto Romanelli, Robin Colaninno, Phillip Hess, Christina O. Lee, Cecilia Mac Cormack, Teresa Nieves-Chinchilla   +7 more
doaj   +1 more source

Wave–Particle Interaction in the Upstream of Interplanetary Coronal Mass Ejection Shocks

The Astrophysical Journal
Shocks associated with interplanetary coronal mass ejections are known to energize charged particles and give rise to solar energetic particles. Many of these energetic particles move ahead of the shock to create a foreshock region.
Shanwlee Sow Mondal, Aveek Sarkar, Sofiane Bourouaine   +2 more
doaj   +1 more source

Evidence of Time-dependent Diffusive Shock Acceleration in the 2022 September 5 Solar Energetic Particle Event

The Astrophysical Journal
On 2022 September 5, a large solar energetic particle (SEP) event was detected by Parker Solar Probe (PSP) and Solar Orbiter (SolO) at heliocentric distances of 0.07 and 0.71 au, respectively.
Xiaohang Chen, Lulu Zhao, Joe Giacalone, Nishtha Sachdeva, Igor V. Sokolov, Gábor Tóth, Christina M. S. Cohen, David Lario, Fan Guo, Athanasios Kouloumvakos, Tamas I. Gombosi, Zhenguang Huang, Ward B. Manchester IV, Bart van der Holst, Weihao Liu, David J. McComas, Matthew E. Hill, George C. Ho   +17 more
doaj   +1 more source