Results 51 to 60 of about 5,923,990 (195)

Solar energetic particles intensity variations associated with a tilted-dipole 3D corotating interaction region

Earth and Planetary Physics
The effect of a tilted-dipole three-dimensional corotating interaction region (CIR) on the transport and acceleration of solar energetic particles (SEPs) is studied. In this work, we discussed how the particle intensity longitudinal and radial dependence
YuJi Zhu, Fang Shen, Xi Luo, Yang Wang, BoFeng Tang   +4 more
doaj   +1 more source

VARIATIONS OF FLOW DIRECTION IN SOLAR WIND STREAMS OF DIFFERENT TYPES

Solar-Terrestrial Physics, 2021
Studying the direction of the solar wind flow is a topical problem of space weather forecasting. As a rule, the quiet and uniform solar wind propagates radially, but significant changes in the solar wind flow direction can be observed, for example, in ...
A.V. Moskaleva, M.O. Riazantseva, Yu.I. Yermolaev, I.G. Lodkina   +3 more
doaj   +1 more source

Deep Eutectic Solvent as Dual Solvent–Catalyst for Efficient Starch Esterification With Vinyl Laurate via Reactive Extrusion

ChemSusChem, Volume 19, Issue 19, 14 October 2026.
A green approach to esterify wheat starch by reactive extrusion using a novel deep eutectic solvent has been developed. The DES acted both as a starch solvent and as an activating agent to complete the esterification within 15–30 min. This novel approach opens new opportunities for the development and upscaling of biobased polymers with promising ...
Samar Bouzidi, Amira Najahi, Jean‐Marc Lévêque, Patricia Chaud, Frédéric Hugenell, Albert Magnin, Sonia Molina‐Boisseau, Jean‐Luc Putaux, Sami Boufi   +8 more
wiley   +1 more source

Schumann Resonance Frequency Increase Following Recurrent Solar Wind Stream Onsets

Earth and Space Science, Volume 13, Issue 10, October 2026.
Abstract Recurrent high‐speed streams and corotating interaction regions (HSS/CIRs) are common solar‐wind drivers, but their influence on Schumann resonance (SR) frequencies remains poorly quantified. We analyzed 173 threshold‐defined HSS/CIR proxy onsets using superposed epoch composites, bootstrap uncertainty, and a month‐matched random‐epoch null ...
J. Tacza, G. Sátori, A. Neska, T. Raita, T. Bozoki   +4 more
wiley   +1 more source

Reconnection in a rotation-dominated magnetosphere and its relation to Saturn's auroral dynamics [PDF]

, 2005
peer reviewed[1] The first extended series of observations of Saturn's auroral emissions, undertaken by the Hubble Space Telescope in January 2004 in conjunction with measurements of the upstream solar wind and interplanetary magnetic field ( IMF) by the
D. Grodent (7590713), Badman, S. V., Grodent, Denis, J. T. Clarke (7590707), S. W. H. Cowley (7590302), Gérard, J.-c., C.M. Jackman (7590716), Bunce, E.J., Badman, Sarah V., Clarke, J. T., Milan, S.E., Jackman, C. M., Jackman, C.M., Gérard, Jean-Claude, Badman, S.V., Yeoman, T. K., Tim K. Yeoman (7583066), Milan, S. E., Jackman, Caitriona M., Cowley, S.W.H., Grodent, D., E. J. Bunce (7590470), Steve E. Milan (7589666), S. V. Badman (7590704), J.-C. Gérard (7590710), Clarke, J.T., Cowley, S. W. H., Bunce, E. J., Gérard, J.C., Yeoman, T.K., S. W. H. Cowley   +30 more
core   +5 more sources

A Space Weather mission concept: Observatories of the Solar Corona and Active Regions (OSCAR)

Journal of Space Weather and Space Climate, 2015
Coronal Mass Ejections (CMEs) and Corotating Interaction Regions (CIRs) are major sources of magnetic storms on Earth and are therefore considered to be the most dangerous space weather events. The Observatories of Solar Corona and Active Regions (OSCAR)
Strugarek Antoine, Janitzek Nils, Lee Arrow, Löschl Philipp, Seifert Bernhard, Hoilijoki Sanni, Kraaikamp Emil, Mrigakshi Alankrita Isha, Philippe Thomas, Spina Sheila, Bröse Malte, Massahi Sonny, O’Halloran Liam, Blanco Victor Pereira, Stausland Christoffer, Escoubet Philippe, Kargl Günter   +16 more
doaj   +1 more source

The Origin of Extremely Nonradial Solar Wind Outflows

The Astrophysical Journal, 2023
The origin of nonradial solar wind flows and their effect on space weather are poorly understood. Here we present a detailed investigation of 12 nonradial solar wind events during solar cycles 23–24, covering the period 1995–2017. In all these events the
Diptiranjan Rout, Janardhan P., Fujiki K., Chakrabarty D., Bisoi S. K.   +4 more
doaj   +1 more source

Earthward O+ Injections in the Plasma Sheet Boundary Layer During Geomagnetic Storms

Journal of Geophysical Research: Space Physics, Volume 131, Issue 10, October 2026.
Abstract During geomagnetic storms, energetic ions are injected from the Earth's magnetotail along the plasma sheet boundary layer (PSBL). Owing to its off‐equatorial inclined orbit, the Arase satellite is in a prime position to observe these injections in the PSBL on the nightside at the apogee.
M. M. H. Kalliokoski, L. M. Kistler, K. Asamura, S. Kasahara, Y. Miyoshi, K. Keika, T. Hori, A. Matsuoka, K. Yamamoto, J. Liao   +9 more
wiley   +1 more source

Corotating interaction regions in stellar winds

The Astrophysical Journal, 1984
In a stellar wind, a corotating interaction region (CIR) is formed when a rotating star emits wind in a non-spherically symmetric manner. CIRs have been studied in detail in the solar wind: here, their role in stellar winds is considered. The radial distance at which CIRs form (in terms of the stellar radius) is proportional to the ratio of wind speed ...
openaire   +1 more source

Turbulence Properties of Corotating Interaction Regions at 1 au: A Comprehensive Superposed Epoch Analysis

The Astrophysical Journal
We perform a comprehensive superposed epoch analysis of more than 200 corotating interaction regions (CIRs) using WIND spacecraft observations at 1 au.
Yuliang Ding, Chen Shi, Marco Velli, Zesen Huang, Nikos Sioulas   +4 more
doaj   +1 more source