Results 41 to 50 of about 33,721 (170)
Numerical Simulations of Driven Relativistic MHD Turbulence
, 2011 A wide variety of astrophysical phenomena involve the flow of turbulent magnetized gas with relativistic velocity or energy density. Examples include gamma-ray bursts, active galactic nuclei, pulsars, magnetars, micro-quasars, merging neutron stars, X ...
Andrew I. MacFadyen +26 more
core +2 more sources
The Stochastic‐Dissipative Störmer Problem‐Trajectories and Radiation Patterns
Annalen der Physik, Volume 537, Issue 12, December 2025.We consider charged particle motion and radiation in a dipole magnetic field, in the presence of friction and of stochastic forces. The numerical solutions of the Langevin equation reveal how these forces modify the complex dynamics of particles, and they offer some new insights into the nonlinear processes relevant to planetary radiation belts ...
Tiberiu Harko, Gabriela Raluca Mocanu
wiley +1 more source
Amplification of MHD waves in swirling astrophysical flows
, 2003 Recently it was found that helical magnetized flows efficiently amplify Alfv\'en waves (Rogava et al. 2003, A&A, v.399, p.421). This robust and manifold nonmodal effect was found to involve regimes of transient algebraic growth (for purely ejectional ...
A. D. Rogava +30 more
core +1 more source
Engineering Reports, Volume 7, Issue 12, December 2025.A computational model for analyzing heat and mass transfer in MHD viscoelastic nanofluid flow with Brownian motion, thermal radiation and chemical reaction are developed in this work. The findings demonstrate how flow stability, heat transfer, and solute distribution are impacted by these significant physical effects.
Tazin Tamanna, Sarder Firoz Ahmmed
wiley +1 more source
The Arctic Ocean Double Estuary: Quantification and Forcing Mechanisms
AGU Advances, Volume 6, Issue 6, December 2025.Abstract The Arctic Ocean double estuary is a “three‐legged” overturning system in which inflowing waters are converted into both lighter and denser waters before being exported equatorwards. As the northern terminus of the Atlantic Meridional Overturning Circulation (MOC), it thus both affects, and is affected by, the Atlantic MOC.
Nikki J. Brown +8 more
wiley +1 more source
Perspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.Abstract Biological and physical science infrastructure programs play a critical role in supporting scientific discovery. Even with their foundational roles in the process of science, frequently, support for these programs is threatened, reduced, or eliminated, placing critical data and information at risk of interruption or loss.
T. M. Crimmins, J. Clark
wiley +1 more source
Spatio‐Temporal Network With Self‐Attention Mechanism for Improved ENSO Prediction
Earth and Space Science, Volume 12, Issue 12, December 2025.Abstract El Niño and the Southern Oscillation (ENSO) is the strongest inter‐annual signal in the global climate system with worldwide climatic, ecological, and societal impacts. Over the past decades, the research on ENSO prediction and predictability has attracted broad attention.
Nan Yu +7 more
wiley +1 more source
Reviews of Geophysics, Volume 63, Issue 4, December 2025.Abstract Dielectric anisotropy in ice alters the propagation of polarized radio waves, so polarimetric radar sounding can be used to survey anisotropic properties of ice masses. Ice anisotropy is either intrinsic, associated with ice‐crystal orientation fabric (COF), or extrinsic, associated with material heterogeneity, such as bubbles, fractures, and ...
Benjamin H. Hills +30 more
wiley +1 more source
Astro-quark matter: a challenge facing astroparticle physics
, 2008 Quark matter both in terrestrial experiment and in astrophysics is briefly reviewed. Astrophysical quark matter could appear in the early Universe, in compact stars, and as cosmic rays. Emphasis is put on quark star as the nature of pulsars.
Xu, Renxin
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AGU Advances, Volume 6, Issue 6, December 2025.Abstract Hydroclimatic extremes such as droughts and floods severely impact global livelihoods, economies, and ecosystems, yet their attribution remains challenging. This study evaluates global Terrestrial Water Storage (TWS) extremeness and climate linkages using GRACE and GRACE‐FO data from 2002 to 2024.
Ashraf Rateb +3 more
wiley +1 more source