Results 11 to 20 of about 426 (204)

Correlation of Coronal Mass Ejection Shock Temperature with Solar Energetic Particle Intensity [PDF]

The Astrophysical Journal
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).
Manuel Enrique Cuesta, D. J. McComas, L. Y. Khoo, R. Bandyopadhyay, T. Sharma, M. M. Shen, J. S. Rankin, A. T. Cummings, J. R. Szalay, C. M. S. Cohen, N. A. Schwadron, R. Chhiber, F. Pecora, W. H. Matthaeus, R. A. Leske, M. L. Stevens   +15 more
doaj   +5 more sources

Effects of Background Solar Wind and Drag Force on the Propagation of Coronal-mass-ejection-driven Shocks [PDF]

The Astrophysical Journal
The propagation of interplanetary shocks, particularly those driven by coronal mass ejections (CMEs), is still an outstanding question in heliophysics and space weather forecasting.
Chin-Chun Wu, Kan Liou, Brian E. Wood, Lynn Hutting   +3 more
doaj   +4 more sources

Study of a coronal mass ejection-driven shock in the low solar corona [PDF]

Il Nuovo Cimento C, 2021
The characterization of coronal shock waves driven by energetic coronal mass ejections (CMEs) is an important topic in solar physics. In this work, we explore how the analysis of simultaneous data obtained from both extreme ultraviolet (EUV) and radio ...
Frassati, F., Barghini, D., Mancuso, S., Bemporad, A.   +3 more
openaire   +2 more sources

The Coronal Analysis of SHocks and Waves (CASHeW) framework [PDF]

Journal of Space Weather and Space Climate, 2017
Coronal bright fronts (CBF) are large-scale wavelike disturbances in the solar corona, related to solar eruptions. They are observed (mostly in extreme ultraviolet (EUV) light) as transient bright fronts of finite width, propagating away from the ...
Kozarev Kamen A., Davey Alisdair, Kendrick Alexander, Hammer Michael, Keith Celeste   +4 more
doaj   +5 more sources

Comment on “Non-interacting coronal mass ejections and solar energetic particles near the quadrature configuration of solar terrestrial relations observatory”: CME shocks are fast magnetosonic shocks and not intermediate Alfvén shocks [PDF]

Astronomy & Astrophysics, 2021
Aims.The expression for the shock Mach number used by Ravishankar and Michalek (2020, A&A, 638, A42) is incorrect. We wish to provide a correct expression so they can redo their analyses.Methods.Coronal mass ejection (CME) shocks are fast magnetosonic shocks and not intermediate Alfvén shocks.
Tsurutani, B. T., Shan, L., Lakhina, G. S., Mazelle, C., Meng, X., Du, A., Liu, Z.   +6 more
openaire   +3 more sources

Direct Observations of a Shock Traversing Preceding Two Coronal Mass Ejections: Insights from Solar Orbiter, Wind, and STEREO Observations

The Astrophysical Journal Letters
The three successive coronal mass ejections (CMEs) that erupted from 2023 November 27–28, provide the first opportunity to shed light on the entire process of a shock propagating through, sequentially compressing, and modifying two preceding CMEs using ...
Yutian Chi, Chenglong Shen, Zhiyong Zhang, Mengjiao Xu, Dongwei Mao, Junyan Liu, Can Wang, Bingkun Yu, Jingyu Luo, Zhihui Zhong, Yuming Wang   +10 more
doaj   +2 more sources

Variations of Heavy Ions in Interplanetary Shock Driven by Interplanetary Coronal Mass Ejections and Stream Interaction Regions [PDF]

The Astrophysical Journal Supplement Series
In the solar wind, the fluctuation of heavy ion abundance serves as a crucial physical metric. This not only mirrors the attributes of the solar wind’s originating solar region but also signifies its influence on Earth’s magnetosphere.
Cong Wang, Qian Ye, Mu Li, Fei He, Xiaoxin Zhang   +4 more
doaj   +2 more sources

Acceleration of Solar Energetic Particles by the Shock of Interplanetary Coronal Mass Ejection [PDF]

The Astrophysical Journal, 2021
Abstract Interplanetary coronal mass ejection (ICME) shocks are known to accelerate particles and contribute significantly to solar energetic particle events. We have performed magnetohydrodynamic-particle in cell simulations of ICME shocks to understand the acceleration mechanism. These shocks vary in Alfvénic Mach numbers as well as in
Shanwlee Sow Mondal, Aveek Sarkar, Bhargav Vaidya, Andrea Mignone   +3 more
openaire   +2 more sources

Multiple regions of shock-accelerated particles during a solar coronal mass ejection [PDF]

Nature Astronomy, 2019
The Sun is an active star that can launch large eruptions of magnetised plasma into the heliosphere, called coronal mass ejections (CMEs). These ejections can drive shocks that accelerate particles to high energies, often resulting in radio emission at low frequencies (<200 MHz).
Diana E. Morosan, Eoin P. Carley, Laura A. Hayes, Sophie A. Murray, Pietro Zucca, Richard A. Fallows, Joe McCauley, Emilia K. J. Kilpua, Gottfried Mann, Christian Vocks, Peter T. Gallagher   +10 more
openaire   +2 more sources

On the Role of Coronal Shocks for Accelerating Solar Energetic Electrons [PDF]

, 2022
We study the role of coronal mass ejection (CME) driven shocks in the acceleration of solar energetic electrons. Using observations by the two STEREO spacecraft, we correlate electron peak intensities of solar energetic particle events measured in situ ...
Kouloumvakos Athanasios, Vainio Rami, Dresing Nina, Rouillard Alexis   +3 more
core   +3 more sources