Results 31 to 40 of about 6,903,043 (357)

Particle energization in space plasmas: towards a multi-point, multi-scale plasma observatory

Experimental astronomy (Print), 2019
This White Paper outlines the importance of addressing the fundamental science theme “How are charged particles energized in space plasmas” through a future ESA mission.
A. Retinò, Y. Khotyaintsev, O. Le Contel, M. F. Marcucci, F. Plaschke, A. Vaivads, V. Angelopoulos, P. Blasi, J. Burch, J. de Keyser, M. Dunlop, L. Dai, J. Eastwood, H. Fu, S. Haaland, M. Hoshino, A. Johlander, L. Kepko, H. Kucharek, G. Lapenta, B. Lavraud, O. Malandraki, W. Matthaeus, K. McWilliams, A. Petrukovich, J. Pinçon, Yoshifumi Saito, L. Sorriso-Valvo, R. Vainio, R. Wimmer–Schweingruber   +29 more
semanticscholar   +1 more source

Laboratory Space Physics: Investigating the Physics of Space Plasmas in the Laboratory [PDF]

, 2018
Laboratory experiments provide a valuable complement to explore the fundamental physics of space plasmas without the limitations inherent to spacecraft measurements. Specifically, experiments overcome the restriction that spacecraft measurements are made
G. Howes
semanticscholar   +1 more source

Variation of Floating Potential in the Topside Ionosphere Observed by STSAT-1 [PDF]

Journal of Astronomy and Space Sciences, 2014
In this study, we investigated the effect of space plasmas on the floating potential variation of a low-altitude, polar-orbiting satellite using the Langmuir Probe (LP) measurement onboard the STSAT-1 spacecraft.
Junhyun Lee, Ensang Lee, Jaejin Lee, Khan-Hyuk Kim, Jongho Seon, Dong-Hun Lee, Ho Jin, Eung-Hyun Kim, Hyun-Jin Jeon, Seong-Bin Lim, Taeyoun Kim, Jaewoong Jang, Kyung-Duk Jang, Kwangsun Ryu   +13 more
doaj   +1 more source

SOTE: A Nonlinear Method for Magnetic Topology Reconstruction in Space Plasmas

Astrophysical Journal Supplement Series, 2019
Complex magnetic structures are ubiquitous in turbulent astrophysical plasmas. Such structures can be host to many dynamic processes, such as magnetic reconnection and energy dissipation. Thus, revealing the 3D topologies of these structures is necessary.
Y. Liu, H. Fu, V. Olshevsky, D. Pontin, C. M. Liu, Z. Wang, G. Chen, L. Dai, A. Retinò   +8 more
semanticscholar   +1 more source

Polar cap arcs from the magnetosphere to the ionosphere: kinetic modelling and observations by Cluster and TIMED [PDF]

Annales Geophysicae, 2012
On 1 April 2004 the GUVI imager onboard the TIMED spacecraft spots an isolated and elongated polar cap arc. About 20 min later, the Cluster satellites detect an isolated upflowing ion beam above the polar cap.
R. Maggiolo, M. Echim, M. Echim, C. Simon Wedlund, Y. Zhang, D. Fontaine, G. Lointier, J.-G. Trotignon   +7 more
doaj   +1 more source

Polar cap ion beams during periods of northward IMF: Cluster statistical results [PDF]

Annales Geophysicae, 2011
Above the polar caps and during prolonged periods of northward IMF, the Cluster satellites detect upward accelerated ion beams with energies up to a few keV.
R. Maggiolo, M. Echim, M. Echim, J. De Keyser, D. Fontaine, C. Jacquey, I. Dandouras   +6 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

A Study on Second Harmonic Excitation in Electron Beam–Plasma Instability

Frontiers in Astronomy and Space Sciences, 2022
The electron beam–plasma interaction is a fundamental nonlinear plasma process that is frequently taking place in space and laboratory plasmas. Such an interaction is found to generate electromagnetic waves observed in space plasmas.
Maryamsadat Rafiei, Mostafa Sahrai, Mahboub Hosseinpour, Abdolrasoul Esfandyari-Kalejahi   +3 more
doaj   +1 more source

Space-Time Structured Plasma Waves

Physical Review Letters
Electrostatic waves play a critical role in nearly every branch of plasma physics from fusion to advanced accelerators, to astro, solar, and ionospheric physics. The properties of planar electrostatic waves are fully determined by the plasma conditions, such as density, temperature, ionization state, or details of the distribution functions.
J. P. Palastro, K. G. Miller, R. K. Follett, D. Ramsey, K. Weichman, A. V. Arefiev, D. H. Froula   +6 more
openaire   +3 more sources

An intracellular transporter mitigates the CO2‐induced decline in iron content in Arabidopsis shoots

FEBS Letters, EarlyView.
This study identifies a gene encoding a transmembrane protein, MIC, which contributes to the reduction of shoot Fe content observed in plants under elevated CO2. MIC is a putative Fe transporter localized to the Golgi and endosomal compartments. Its post‐translational regulation in roots may represent a potential target for improving plant nutrition ...
Timothy Mozzanino, Meijie Li, Cécile Fizames, Mattia Adamo, Laurence Lejay, Christian Dubos, Matthieu Platre, Antoine Martin   +7 more
wiley   +1 more source