Results 101 to 110 of about 426 (204)

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

Freely propagating flanks of wide coronal-mass-ejection-driven shocks: Modelling and observational insights [PDF]

Context. Widespread solar energetic particle (SEP) events remain poorly understood phenomena in space weather. These events are often linked to coronal mass ejections (CMEs) and their shocks, but the mechanisms governing their global particle ...
L. Rodríguez-García, N. Dresing, N. Wijsen, Wijsen, N., Dresing, N., I. C. Jebaraj, E. Palmerio, Kouloumvakos, A., A. Kouloumvakos, Palmerio, E., Rodriguez-Garcia, L., Jebaraj, I. C.   +11 more
core   +1 more source

Evolution of piled-up compressions in modeled coronal mass ejection sheaths and the resulting sheath structures [PDF]

, 2020
We study coronal mass ejection (CME)-driven shocks and the resulting post-shock structures in the lower corona (2-7 R ). Two CMEs are erupted by modified Titov-Démoulin (TD) and Gibson-Low (GL) type flux ropes (FRs) with the Space Weather Modeling ...
Indrajit Das, Cristiane Loesch, Tamas I Gombosi, Merav Opher, Rebekah Evans   +4 more
core  

Remote and in situ observations of electrons accelerated during a solar coronal mass ejection [PDF]

, 2023
Coronal mass ejections (CMEs) are large eruptions of magnetized plasma from the solar corona. Fast CMEs can drive shock waves which are capable of accelerating charged particles to high energies. These accelerated particles emit electromagnetic radiation,
Normo, Sanna
core  

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

Study of Evolution and Geo-effectiveness of Coronal Mass Ejection–Coronal Mass Ejection Interactions Using Magnetohydrodynamic Simulations with SWASTi Framework [PDF]

The geo-effectiveness of coronal mass ejections (CMEs) is a critical area of study in space weather, particularly in the lesser-explored domain of CME–CME interactions and their geomagnetic consequences.
D. Chakrabarty, Stefan Lotz, Prateek Mayank, Wageesh Mishra, Bhargav Vaidya   +4 more
core   +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

Parker Solar Probe Observations of Turbulence and Waves between a Current Sheet and an Interplanetary Coronal Mass Ejection–Driven Shock

The Astrophysical Journal
Abstract We report on unusual magnetic wave activity seen in a region between the crossing of a current sheet and an interplanetary shock by the Parker Solar Probe (PSP). The PSP observed a shock driven by an interplanetary coronal mass ejection on 2021 June 30 at 14:58:19 at 0.76 au.
Juan Zhang, Joe Giacalone, Xiaohang Chen, Lan K. Jian, Kristopher G. Klein   +4 more
openaire   +1 more source

Shock-related radio emission during coronal mass ejection lift-off? [PDF]

, 2008
Aims. We identify the source of fast-drifting decimetric-metric radio emission that is sometimes observed prior to the so-called flare continuum emission.
S. Pohjolainen
core   +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