Results 81 to 90 of about 9,642 (217)

Modulation of Galactic Cosmic Rays in the Inner Heliosphere over Solar Cycles

, 2018
The 11-year and 22-year modulation of galactic cosmic rays (GCRs) in the inner heliosphere are studied using a numerical model developed by Qin and Shen in 2017.
Qin, G., Shen, Z. -N.
core   +1 more source

The role of interplanetary scattering in western hemisphere large solar energetic particle events [PDF]

, 2006
Using high-sensitivity instruments on the ACE spacecraft, we have examined the intensities of O and Fe in 14 large solar energetic particle events whose parent activity was in the solar western hemisphere.
Cohen, C. M. S., Desai, M. I., Dwyer, J. R., Mason, G. M., Mewaldt, R. A, Stone, E. C.   +5 more
core   +2 more sources

Energy Partition at a Collisionless Supercritical Quasi‐Parallel Shock

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract Shocks in collisionless astrophysical plasmas redistribute some of the incident flow energy into both thermal and non‐thermal energy. Quantifying the partition of that energy amongst various particle species or their sub‐populations, and electromagnetic energy, represents a fundamental goal of shock physics.
Steven J. Schwartz, Karlheinz J. Trattner, Savvas Raptis, Robert E. Ergun, Lynn B. Wilson III, Roman G. Gomez, Ian J. Cohen, Daniel J. Gershman, Katherine A. Goodrich, Harald Kucharek, Tien Vo   +10 more
wiley   +1 more source

Relating Intermittency and Inverse Cascade to Stochastic Entropy in Solar Wind Turbulence

The Astrophysical Journal Letters, 2023
Turbulent energy transfer in nearly collisionless plasmas can be conceptualized as a scale-to-scale Langevin process. Hence, the statistics of magnetic field fluctuations can be embedded in the framework of stochastic process theory.
Mirko Stumpo, Simone Benella, Tommaso Alberti, Oreste Pezzi, Emanuele Papini, Giuseppe Consolini   +5 more
doaj   +1 more source

On the Freeze‐In Distance of Solar Wind Fluid Entropy Variability in the Corona

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract The strong correlation between solar wind entropy and the frozen‐in ion charge state ratio O7+/O6+ ${\mathrm{O}}^{7+}/{\mathrm{O}}^{6+}$ indicates that entropy variability on timescales of hours or longer is preserved from its solar source. This prompts the question: where in the solar atmosphere does this entropy variability come from, and at
Aidan J. Nakhleh, Nicholeen M. Viall, Susan T. Lepri, Jim M. Raines   +3 more
wiley   +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
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).
Juan Zhang, Joe Giacalone, Xiaohang Chen, Lan K. Jian, Kristopher G. Klein   +4 more
doaj   +1 more source

Relative ordering in the radial evolution of solar wind turbulence: the S-Theorem approach [PDF]

Annales Geophysicae, 2011
Over the past few decades scientists have shown growing interest in space plasma complexity and in understanding the turbulence in magnetospheric and interplanetary media. At the beginning of the 1980s, Yu. L.
G. Consolini, P. De Michelis
doaj   +1 more source

Evaluating the OMNI Database: Statistical Analysis of Time‐Shifted L1 Data Versus Direct Near‐Earth Solar Wind Observations

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract This study presents a comprehensive statistical comparison of solar wind measurements between the OMNI database which contains data collected at L1 that is shifted to the bow shock nose, and near‐Earth observations from MMS, Cluster, and THEMIS missions near the bow shock nose.
G. H. Blüthner, M. Volwerk, D. Schmid, R. Nakamura, M. Temmer, O. W. Roberts, F. Koller, A. Varsani   +7 more
wiley   +1 more source

Propagation Velocities and Growth Rates of Short Large‐Amplitude Magnetic Structures (SLAMS) in the Foreshock of Earth

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract Short Large‐Amplitude Magnetic Structures (SLAMS) are believed to play important roles in the physics governing the formation of quasi‐parallel shocks. These isolated non‐linear structures, frequently observed in the foreshock, have been suggested to be building blocks for the shock and have been shown to drive shock reformation. In this work,
S. Bergman, T. Karlsson, T. K. Wong Chan
wiley   +1 more source

Connecting the Sun and the Solar Wind: The First 2.5 Dimensional Self-consistent MHD Simulation under the Alfv\'en Wave Scenario

, 2012
The solar wind emanates from the hot and tenuous solar corona. Earlier studies using 1.5 dimensional simulations show that Alfv\'{e}n waves generated in the photosphere play an important role in coronal heating through the process of non-linear mode ...
Antolin, Banerjee, Bogdan, Cranmer, Dmitruk, Einaudi, Esser, Fedun, Hasan, Heyvaerts, Kudoh, Lamy, Matsumoto, Matsumoto, Matthaeus, Nishizuka, Okamoto, Perez, Steiner, Suzuki, Takeru Ken Suzuki, Takuma Matsumoto, Teriaca, Tsuneta, Van Ballegooijen, Verdini, Wilhelm, Yokoyama, Zangrilli   +28 more
core   +1 more source