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Precursory Signals of Forbush Decreases Not Connected with Shock Waves
Forbush decreases (FDs) are sharp reductions of the cosmic-ray (CR) intensity, following intense solar activity such as coronal mass ejections (CMEs)...
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Scientific objectives of the Hot Universe Baryon Surveyor (HUBS) mission
The Hot Universe Baryon Surveyor (HUBS) is a proposed space-based X-ray telescope for detecting X-ray emissions from the hot gas content in our...
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Millicharged particles from the heavens: single- and multiple-scattering signatures
For nearly a century, studying cosmic-ray air showers has driven progress in our understanding of elementary particle physics. In this work, we...
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Relationship between the trajectories of primary particles and muons, recorded on the Earth’s surface at different polarities of the Sun
In passing through the heliosphere, the cosmic ray flux changes its properties (energy and angular distribution) due to the influence of...
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Dynamics of Quasi-Biennal Variations of Cosmic Rays and Solar Activity
The quasi-biennial variations in the flux of galactic cosmic rays (GCRs) have been studied based on the data of stratospheric sensing and...
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Ten years of CR physics with PAMELA
The satellite borne Pamela instrument is dedicated to the precise and high statistics study of CR fluxes on a four decades energy range. Pamela...
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A Statistical Analysis of the Solar Phenomena Associated with Global EUV Waves
Solar eruptions are the most spectacular events in our solar system and are associated with many different signatures of energy release including...
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What Controls the Structure and Dynamics of Earth’s Magnetosphere?
Unlike most cosmic plasma structures, planetary magnetospheres can be extensively studied in situ. In particular, studies of the Earth’s...
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Large-Scale Structure Formation: From the First Non-linear Objects to Massive Galaxy Clusters
The large-scale structure of the Universe formed from initially small perturbations in the cosmic density field, leading to galaxy clusters with up...
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Ensemble Modeling of Successive Halo CMEs: A Case Study
The Wang–Sheeley–Arge (WSA)–Enlil cone modeling system is used for making routine arrival-time forecasts of Earth-directed halo coronal mass...
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Flux Transport Dynamos: From Kinematics to Dynamics
Over the past several decades, Flux-Transport Dynamo (FTD) models have emerged as a popular paradigm for explaining the cyclic nature of solar...
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The Whole Heliosphere Interval in the Context of a Long and Structured Solar Minimum: An Overview from Sun to Earth
Throughout months of extremely low solar activity during the recent extended solar-cycle minimum, structural evolution continued to be observed from...
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Solar Wind Turbulence and the Role of Ion Instabilities
Solar wind is probably the best laboratory to study turbulence in astrophysical plasmas. In addition to the presence of magnetic field, the...
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The Global Context of Solar Activity During the Whole Heliosphere Interval Campaign
The Whole Heliosphere Interval (WHI) was an international observing and modeling effort to characterize the 3-D interconnected “heliophysical” system...
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Collisional and Radiative Processes in Optically Thin Plasmas
Most of our knowledge of the physical processes in distant plasmas is obtained through measurement of the radiation they produce. Here we provide an...
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Stellar Activity
The atmospheres of late-type stars are site of strong magnetic fields responsible for their nonradiative heating. The stellar magnetic activity...
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Who Needs Turbulence?
The significant influences of turbulence in neutral fluid hydrodynamics are well accepted but the potential for analogous effects in space and...
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Anisotropy in Space Plasma Turbulence: Solar Wind Observations
The local magnetic field induces many types of anisotropy in plasma turbulence, changing the rate of energy transfer and affecting the propagation of...
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UVCS Observations of Temperature and Velocity Profiles in Coronal Holes
The spectroscopic observations of the Ultraviolet Coronagraph Spectrometer (UVCS), on board the SOHO observatory, allow the study and the full...
