Results 81 to 90 of about 5,923,990 (195)

Elemental abundances in corotating events [PDF]

open access: yes, 1986
Large, persistent solar-wind streams in 1973 and 1974 produced corotating interaction regions which accelerated particles to energies of a few MeV/nucleon.
Vonrosenvinge, T. T., Mcguire, R. E.
core  

The role of corotating interaction regions in cosmic‐ray modulation

open access: yesGeophysical Research Letters, 1991
We present the first global simulations of the modulation of galactic cosmic rays by a three‐dimensional solar wind with corotating interaction regions. The cosmic‐ray transport equation is solved in a computed wind and magnetic‐field model. The results show both the previously‐neglected small‐scale response to CIR's and global, drift‐dominated ...
J. Kóta, J. R. Jokipii
openaire   +1 more source

Global Plasmaspheric Refilling Rates Inferred From Deep‐Learning Electron Density Reconstructions

open access: yesGeophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract As a key process in magnetosphere‐ionosphere coupling, plasmaspheric refilling is a long‐standing focus in space physics. In this study, we develop a global electron density (GEO‐NE) model based on a CNN‐Transformer architecture, and use the model to investigate plasmaspheric electron density refilling rates. Using global electron density maps
Zhenyu Guo   +6 more
wiley   +1 more source

Reanalysis of SKR Source Crossed by Cassini: Loss Cone Electrons as a Secondary Source of Free Energy

open access: yesGeophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Saturn's Kilometric Radiation (SKR) is a powerful non‐thermal radio auroral emission produced by the Cyclotron Maser Instability (CMI), which generates waves close to the local cyclotron frequency in a highly magnetized plasma from mildly relativistic electrons.
B. Collet, L. Lamy, Y. Kasaba, N. Andre
wiley   +1 more source

Disentangling the Spectroscopic Signatures of Clumping and Corotating Interaction Regions in the Wolf–Rayet Star WR 6

open access: yesThe Astrophysical Journal
Wolf–Rayet (WR) winds exhibit variability driven by small-scale clumping and large-scale corotating interaction regions (CIRs), but their interplay remains uncertain.
André-Nicolas Chené
doaj   +1 more source

A new model describing Forbush Decreases at Mars: combining the heliospheric modulation and the atmospheric influence

open access: yesEarth and Planetary Physics, 2020
Forbush decreases are depressions in the galactic cosmic rays (GCRs) that are caused primarily by modulations of interplanetary coronal mass ejections (ICMEs) but also occasionally by stream/corotating interaction regions (SIRs/CIRs).
Jingnan Guo   +4 more
doaj   +1 more source

Discrete Energy Bands Beyond Galilean Moons: Bounce‐Phase Structuring of Jovian Magnetospheric Particles

open access: yesGeophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract Discrete energy bands of ion fluxes, typically organized in velocity with equal separations, have been frequently observed in Jupiter's magnetosphere either in association with Galilean moons or in regions far from their influence. Here, we focus on the latter type and propose that these bands are manifestations of bounce‐phase structuring ...
Ya‐Ze Wu   +5 more
wiley   +1 more source

Corotating interaction regions (CIRs): evolution over a solar lifetime

open access: yesMonthly Notices of the Royal Astronomical Society
ABSTRACT Corotating interaction regions (CIRs) are persistent structures in stellar winds that arise from the interaction between fast and slow wind streams. They are known to generate shocks and high-energy particles, potentially influencing the erosion of planetary atmospheres and space weather conditions.
Rose F P Waugh, Moira M Jardine
openaire   +2 more sources

Evidence for interplanetary acceleration of nucleons in corotating interaction regions

open access: yesThe Astrophysical Journal, 1976
Simultaneous measurements of protons and helium in the energy range 0.5-2 MeV per nucleon on IMP-8 (at 1 AU) and Pioneer-10 and Pioneer-11 (between 1 and 8 AU) have revealed a correlation which develops beyond about 2.5 AU between the positions of double peaks in recurring proton intensity increases and the leading and trailing edges of recurring ...
C. W. Barnes, J. A. Simpson
openaire   +1 more source

Field‐Aligned Currents During High‐Intensity Long‐Duration Continuous Auroral Electrojet Activity Events: Seasonal Dependences

open access: yesSpace Weather
High‐intensity long‐duration continuous auroral electrojet activity (HILDCAA) events caused by interplanetary Alfvén waves are associated with global‐scale convection events.
Rajkumar Hajra   +3 more
doaj   +1 more source

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