Results 91 to 100 of about 426 (204)

The interplanetary causes of geomagnetic activity during the 7–17 March 2012 interval: a CAWSES II overview

Journal of Space Weather and Space Climate, 2014
This overview paper presents/discusses the major solar, interplanetary, magnetospheric, and ionospheric features of the CAWSES II interval of study: 7–17 March 2012. Magnetic storms occurred on 7, 9, 12, and 15 March with peak SYM-H intensities of −98 nT,
Tsurutani Bruce T., Echer Ezequiel, Shibata Kazunari, Verkhoglyadova Olga P., Mannucci Anthony J., Gonzalez Walter D., Kozyra Janet U., Pätzold Martin   +7 more
doaj   +1 more source

Statistical Properties of Small‐Scale Magnetic Flux Ropes in the Near‐Earth Solar Wind

Journal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.
Abstract We present a statistical analysis of small‐scale magnetic flux ropes (SMFRs) observed in the near‐Earth solar wind using data from the Magnetospheric Multiscale (MMS) and Wind spacecraft, identified through an automated Grad–Shafranov reconstruction technique.
Youra Shin, Hyomin Kim, Kyung‐Eun Choi, Hameedullah Farooki, Sung Jun Noh, Haimin Wang   +5 more
wiley   +1 more source

Estimating the lateral speed of a fast shock driven by a coronal mass ejection at the location of solar radio emissions

Astronomy & Astrophysics
Context. Fast coronal mass ejections (CMEs) can drive shock waves capable of accelerating electrons to high energies. These shock-accelerated electrons act as sources of electromagnetic radiation, often in the form of solar radio bursts. Recent findings suggest that radio imaging of solar radio bursts can provide a means to estimate the lateral ...
S. Normo, D. E. Morosan, E. K. J. Kilpua, J. Pomoell   +3 more
openaire   +2 more sources

Solar Energetic Particle Forecasting With Multi‐Task Deep Learning: SEPNET

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 3, June 2026.
Abstract Solar energetic particle (SEP) events pose severe threats to spacecraft, astronaut safety, and aviation operations. Accurate SEP forecasting remains a critical challenge in space weather research as a result of their complex origins and highly variable propagation.
Yian Yu, Yang Chen, Lulu Zhao, Kathryn Whitman, Ward Manchester, Tamas Gombosi   +5 more
wiley   +1 more source

Statistical Analysis of Jump in Solar Wind Plasma Parameter and Coronal Mass Ejections with Shock Related Geomagnetic Storm

, 2019
Coronal Mass Ejections (CMEs) are the drastic solar events in which huge amount of solar plasma materials are ejected into the heliosphere from the sun and are mainly responsible to generate large disturbances in solar wind plasma parameters and geomagnetic storms in the geomagnetic field.
Preetam Singh Gour, Shiva Soni
openaire   +2 more sources

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

Investigating the acceleration of solar energetic particles by a coronal mass ejection driven shock in the corona with self-generated Alfvén waves [PDF]

, 2016
Observations of extreme solar energetic particle events associated with coronal mass ejection driven shocks have detected particle energies up to a few GeV at 1 AU within the first ~10 minutes to 1 hour of shock acceleration.
Arthur, Aaron Douglas
core   +1 more source

Direct In Situ Measurements of a Fast Coronal Mass Ejection and Associated Structures in the Corona [PDF]

We report on the first direct in situ measurements of a fast coronal mass ejection (CME) and shock in the corona, which occurred on 2022 September 5. In situ measurements from the Parker Solar Probe (PSP) spacecraft near perihelion suggest two shocks ...
Hu, Huidong, Bale, Stuart D., Liu, Mingzhe, Stevens, Michael L., Zhao, Xiaowei, Liu, Ying D., Ran, Hao, Zhu, Bei, Wang, Rui   +8 more
core   +4 more sources

Transmission and Emission of Solar Energetic Particles in Semi-transparent Shocks. [PDF]

, 2014
While major solar energetic particle (SEP) events are associated with coronal mass ejection (CME)-driven shocks in solar wind, accurate SEP measurements reveal that more than one component of energetic ions exist in the beginning of the events.
Laitinen, Timo Lauri Mikael, Usoskin, Ilya, Kocharov, Leon, Vainio, Rami   +3 more
core   +1 more source

Connecting remote and in situ observations of shock-accelerated electrons associated with a coronal mass ejection [PDF]

, 2023
One of the most prominent sources for energetic particles in our solar system are huge eruptions of magnetised plasma from the Sun called coronal mass ejections (CMEs), which usually drive shocks that accelerate charged particles up to relativistic ...
Pomoell, J., Morosan, D. E., Dresing, N., Palmroos, C., Vainio, R., Kilpua, E. K. J., Gieseler, J., Kumari, A., Jebaraj, I. C., Asvestari, E.   +9 more
core   +1 more source