Results 101 to 110 of about 1,149 (246)
Phase‐Space Synchronization Driven by Moon‐Magnetosphere Coupling in Gas Giants
Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.Abstract We present a new theoretical framework to describe the rapid and spatially localized loss of energetic particles in planetary radiation belts, focusing on interactions between gas giant magnetospheres and their moons. Observations show that flux depletions—known as microsignatures—often refill on timescales comparable to a single drift period,
Adnane Osmane +2 more
wiley +1 more source
Periodic Density Structures Observed in Ulysses Data: First Results
Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.Abstract Periodic density structures (PDSs) are advecting quasi‐periodic (periodicities between several minutes and several hours) density enhancements observed in the solar wind and corona. There is strong evidence that PDSs are formed at the Sun.
Brent M. Randol +3 more
wiley +1 more source
Spacecraft formation flying using bifurcating potential fields [PDF]
, 2008 The distributed control of spacecraft flying in formation has been shown to have advantages over conventional single spacecraft systems. These include scalability, flexibility and robustness to failures. This paper considers the real problem of actuator saturation and shows how bound control laws can be developed that allow pattern formation and ...
Bennet, Derek, McInnes, Colin R.
openaire
Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.Abstract Cherenkov detectors have been used in space for decades to measure Galactic Cosmic Rays (GCRs), Solar Energetic Particles (SEPs) and trapped particles. We present proof‐of‐concept GRAS/Geant4 simulations to both show that a cubic fused silica Cherenkov detector with SiPM in LEO has a good sensitivity to SEP and GCR protons as a function of cut‐
C. S. W. Davis +6 more
wiley +1 more source
JWST/NIRSpec Reveals the Atmospheric Driver of Saturn's Variable Magnetospheric Rotation Rate
Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.Abstract Past measurements of Saturn's upper atmosphere have allowed only a broad scale view of the temperature and ion density structures within the auroral region. However, Saturn's auroral currents include a planetary period current component that is produced by neutral atmospheric flows.
Tom S. Stallard +15 more
wiley +1 more source
Designing a Robust Nonlinear Dynamic Inversion Controller for Spacecraft Formation Flying [PDF]
, 2014 Inseok Yang, Dongik Lee, Dong Seog Han
openalex +1 more source
Imaging the Perpendicular Plasma Dynamics Driving a Discrete Auroral Arc
Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.Abstract Measurements of motions and structuring in auroral luminosity are combined with magnetically connected plasma measurements from the Reimei spacecraft to image the perpendicular plasma dynamics active above a discrete auroral arc. It is demonstrated how the inversion of optical flow patterns specifies the potential structure above regions of ...
C. C. Chaston
wiley +1 more source
Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.Abstract Foreshock Bubbles (FBs) are large‐scale transient structures found in Earth's foreshock region and are associated with foreshock‐discontinuity interaction. FBs play a significant role in accelerating and energizing plasma through various mechanisms.
Souhail Dahani +10 more
wiley +1 more source
Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.Abstract This study presents simultaneous measurements of electron phase space density (PSD) gradients in geostationary orbit using data from GK2A, GOES‐16, and GOES‐17. By leveraging a three‐satellite configuration, we provide statistical results of PSD gradient estimation in invariant coordinates.
N.‐Y. Lee +5 more
wiley +1 more source