Results 81 to 90 of about 13,753 (202)

Sampling the volcanic plumes at Io: Impact speeds and shock conditions

Meteoritics &Planetary Science, Volume 61, Issue 2, Page 241-271, February 2026.
Abstract The desire to sample material from the interior of Io, by flying through its volcanic plumes, requires consideration of the flyby speed and the types of sample collection techniques that can be utilized. Low speed collection (1–2.5 km s−1) would require an orbit around Io itself, which is unlikely due to the accumulated radiation dose that ...
M. J. Burchell, R. C. Ogliore, P. J. Wozniakiewicz   +2 more
wiley   +1 more source

An Overview of Solar Orbiter Observations of Interplanetary Shocks in Solar Cycle 25

The Astrophysical Journal Supplement Series
Interplanetary (IP) shocks are fundamental constituents of the heliosphere, where they form as a result of solar activity. We use previously unavailable measurements of IP shocks in the inner heliosphere provided by Solar Orbiter, and present a survey of
Domenico Trotta, Andrew Dimmock, Heli Hietala, Xochitl Blanco-Cano, Timothy S. Horbury, Rami Vainio, Nina Dresing, Immanuel Christopher Jebaraj, Francisco Espinosa Lara, Raúl Gómez-Herrero, Javier Rodriguez-Pacheco, Yulia Kartavykh, David Lario, Jan Gieseler, Miho Janvier, Milan Maksimovic, Nasrin Talebpour Sheshvan, Christopher J. Owen, Emilia K. J. Kilpua, Robert F. Wimmer-Schweingruber   +19 more
doaj   +1 more source

Low Frequency Oscillation Observed in the Ionosphere Around the Substorm Onsets

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract Three substorm events in which Defense Meteorological Satellite Program (DMSP) spacecraft are geomagnetically co‐located with substorm onset locations in IMAGE far ultraviolet auroral images are analyzed. A Hilbert‐Huang Transform is used to decompose the DMSP B⊥ ${B}_{\perp }$ in the ionosphere to its intrinsic mode functions. A dominant mode
Simon Wing, Jay R. Johnson, Elmer C. Rivera, Arthur J. Hull, Peter Damiano   +4 more
wiley   +1 more source

SH41B-2777: The acceleration of particles at propagating interplanetary shocks

, 2018
Enhancements of charged energetic particles are often observed at Earth following the eruption of coronal mass ejections (CMEs) on the Sun. These enhancements are thought to arise from the acceleration of those particles at interplanetary shocks forming ahead of CMEs, propagating into the heliosphere.
Prinsloo, Phillip, Strauss, Du Toit
openaire   +1 more source

Multipoint Observations of a SLAMS Evolution and Its Merger With Whistler Waves

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract We report multipoint observations of a merger between a Short Large‐Amplitude Magnetic Structure (SLAMS) and 1‐Hz whistler wave packets upstream of Earth's quasi‐parallel bow shock. Using high‐resolution data from the Magnetospheric Multiscale (MMS) mission in a string‐of‐pearls configuration, we track the SLAMS as it evolves, exhibiting ...
Mengmeng Wang, Yuri V. Khotyaintsev, Daniel B. Graham, Jing‐Huan Li, Ahmad Lalti, Cecilia Norgren   +5 more
wiley   +1 more source

The interplanetary acceleration of energetic nucleons [PDF]

Co-rotating proton and electron streams are the dominant type of low-energy (0.1-10 MeV/nucleon) particle event observed at 1 A.U. The radial dependence of these events was studied between 1 and 4.6 A.U.
Mcdonald, F. B., Teegarden, B. J., Trainor, J. H., Vonrosenvinge, T. T., Webber, W. R.   +4 more
core   +1 more source

Solar Wind With Field Lines and Energetic Particles (SOFIE) Model: Application to Historical Solar Energetic Particle Events

Space Weather
In this paper, we demonstrate the applicability of the data‐driven solar energetic particle (SEP) model, SOlar‐wind with FIeld‐lines and Energetic‐particles (SOFIE), to simulate the acceleration and transport processes of SEPs and make forecast of the ...
Lulu Zhao, Igor Sokolov, Tamas Gombosi, David Lario, Kathryn Whitman, Zhenguang Huang, Gabor Toth, Ward Manchester, Bart van derHolst, Nishtha Sachdeva, Weihao Liu   +10 more
doaj   +1 more source

Solar Energetic Particle Events in the 23rd Solar Cycle: Interplanetary Magnetic Field Configuration and Statistical Relationship with Flares and CMEs

, 2012
We study the influence of the large-scale interplanetary magnetic field configuration on the solar energetic particles (SEPs) as detected at different satellites near Earth and on the correlation of their peak intensities with the parent solar activity ...
Dorrian, G., Klein, K. -L., Malandraki, O., Miteva, R.   +3 more
core   +1 more source

Energetic seed particles in self-consistent particle acceleration modeling at interplanetary shock waves

Astronomy & Astrophysics
Aims. The study investigates the relevance of the seed particle population in the results of particle acceleration in interplanetary shock waves, when wave–particle interactions are treated self-consistently. Methods. We employed the SOLar Particle Acceleration in Coronal Shocks (SOLPACS) model, which is a proton acceleration simulation in shocks with ...
S. Nyberg, L. Vuorinen, A. Afanasiev, D. Trotta, R. Vainio   +4 more
openaire   +1 more source

Energetic particle investigation using the ERNE instrument

Annales Geophysicae
During solar flares and coronal mass ejections, nuclei and electrons accelerated to high energies are injected into interplanetary space. These accelerated particles can be detected at the SOHO satellite by the ERNE instrument.
J. Torsti, E. Valtonen, L. Kocharov, M. Lumme, T. Eronen, M. Louhola, E. Riihonen, G. Schultz, M. Teittinen, R. Vainio, A. Anttila, J. Kuusela   +11 more
doaj