Results 11 to 20 of about 5,952,631 (141)

Diagnostics of corotating interaction regions with the kinetic properties of iron ions as determined with STEREO/PLASTIC [PDF]

Annales Geophysicae, 2010
STEREO/PLASTIC determines three-dimensional distributions of solar wind iron ions with unprecedented time resolution. Typically 300 to 1000 counts are registered within each 5 min time interval.
P. Bochsler, P. Bochsler, M. A. Lee, R. Karrer, L. K. Jian, L. Ellis, C. J. Farrugia, A. B. Galvin, L. M. Kistler, H. Kucharek, E. Möbius, M. A. Popecki, K. D. C. Simunac, L. M. Blush, H. Daoudi, P. Wurz, B. Klecker, R. F. Wimmer-Schweingruber, B. Thompson, J. G. Luhmann, C. T. Russell, A. Opitz   +21 more
doaj   +5 more sources

Corotating Interaction Regions (CIRs): impacts with exoplanets [PDF]

Monthly Notices of the Royal Astronomical Society
Abstract Corotating interaction regions (CIRs) are compressions that form in stellar winds when streams of different speeds collide. They form an Archimedean spiral around the star and can compress any exoplanetary magnetospheres they impact. They may also steepen into shocks capable of accelerating particles to high energies.
Rose F P Waugh, Moira M Jardine
openaire   +4 more sources

Using Tianwen-1 Differential One-way Range Signals to Probe Corotating Interaction Regions: Case Studies

The Astrophysical Journal, 2023
The study reports the first detection of corotating interaction regions (CIRs) in the solar wind by the differential one-way range (DOR) signals transmitted by Tianwen-1. Differential phase delay is calculated for the DOR signals. Variations of the total
Qingbao He, Zhichao Wang, Qinghui Liu, Kaijun Liu, Li Guo   +4 more
doaj   +2 more sources

Statistics of counter-streaming solar wind suprathermal electrons at solar minimum: STEREO observations [PDF]

Annales Geophysicae, 2010
Previous work has shown that solar wind suprathermal electrons can display a number of features in terms of their anisotropy. Of importance is the occurrence of counter-streaming electron patterns, i.e., with "beams" both parallel and anti-parallel to
B. Lavraud, B. Lavraud, A. Opitz, A. Opitz, J. T. Gosling, A. P. Rouillard, K. Meziane, J.-A. Sauvaud, J.-A. Sauvaud, A. Fedorov, A. Fedorov, I. Dandouras, I. Dandouras, V. Génot, V. Génot, C. Jacquey, C. Jacquey, P. Louarn, P. Louarn, C. Mazelle, C. Mazelle, E. Penou, E. Penou, D. E. Larson, J. G. Luhmann, P. Schroeder, L. Jian, C. T. Russell, C. Foullon, R. M. Skoug, J. T. Steinberg, K. D. Simunac, A. B. Galvin   +32 more
doaj   +3 more sources

The Extreme GIC Occurrence During 11 years of Observations in the North‐West of Russia

Space Weather
For the first time, events with extreme magnitudes of geomagnetically induced currents (GICs) in the power lines during the quasi‐solar cycle (2012–2022) at auroral and subauroral latitudes are analyzed.
V. B. Belakhovsky, V. A. Pilipenko, V. N. Selivanov, Ya. A. Sakharov, J. J. Zhang, V. V. Kolobov   +5 more
doaj   +2 more sources

Monte Carlo Radiative Transfer Simulations of Light and Polarization Curves from Corotating Interaction Regions in the Winds of Massive Stars: Application to ζ Puppis

The Astrophysical Journal
Using a Monte Carlo radiative transfer approach, we present an exploration of the parameter space to simulate light and polarization curves generated by corotating interaction regions (CIRs) in hot-star winds.
Rémi Sincennes, Nicole St-Louis, Richard Ignace, Jon Bjorkman   +3 more
doaj   +2 more sources

Multispacecraft Energetic Particle Enhancements Associated with a Single Corotating Interaction Region

The Astrophysical Journal
The radial evolution of particles accelerated at corotating interaction regions (CIRs) is not fully understood, particularly the distance range over which this particle acceleration occurs and how the energy spectra are modulated by transport through the
M. J. Starkey, M. A. Dayeh, M. I. Desai, R. Bučík, S. T. Hart, H. A. Elliott   +5 more
doaj   +2 more sources

First imaging of corotating interaction regions using the STEREO spacecraft [PDF]

, 2008
Plasma parcels are observed propagating from the Sun out to the large coronal heights monitored by the Heliospheric Imagers (HI) instruments onboard the NASA STEREO spacecraft during September 2007. The source region of these out-flowing parcels is found
Eyles, C. J., Davies, J. A., Rouillard, A. P., Bewsher, D., Forsyth, R. J., Harrison, R. A., Rees, A., Hapgood, M., Lockwood, M., Crothers, S. R., Perry, C. H., Davis, C. J.   +11 more
core   +6 more sources

Modeling Ion Acceleration and Transport in Corotating Interaction Regions: The Mass-to-charge Ratio Dependence of the Particle Spectrum [PDF]

The Astrophysical Journal Letters
We investigate the role of perpendicular diffusion in shaping the energetic ion spectrum in corotating interaction regions (CIRs), focusing on its mass-to-charge ( A / Q ) ratio dependence.
Zheyi Ding, Gang Li, Nicolas Wijsen, Stefaan Poedts, Shuo Yao   +4 more
doaj   +2 more sources

Geomagnetic storms driven by ICME- and CIR-dominated solar wind. [PDF]

, 2006
The interaction of the solar wind and the Earth's magnetosphere is complex and the phenomenology of the interaction is very different for solar wind dominated by interplanetary coronal mass ejections (ICMEs) compared to solar wind dominated by corotating
Liemohn, M. W., Zhang, J. C., Skoug, R. M., McPherron, R. L., Denton, M. H., Borovsky, Joseph E., Denton, Michael H., Henderson, M. G., Lavraud, B., Borovsky, J. E., Thomsen, M. F.   +10 more
core   +5 more sources