Results 161 to 170 of about 5,923,990 (195)

Particle acceleration at corotating interaction regions

AIP Conference Proceedings, 1999
The acceleration of charged particles at corotating interaction regions (CIRs) leads to a quasi-permanent generation of high energy particles in the heliosphere-even in times of a quiet sun. We study this process as a special kind of particle acceleration at collisionless shock waves. Therefore, we analyze the correlation between the fluid description,
Classen, H., Mann, G., Forsyth, R., Keppler, E.   +3 more
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Corotating Interaction Regions in the Outer Heliosphere

Space Science Reviews, 1999
We discuss the structure and evolution of CIRs and their successors in the outer heliosphere. These structures undergo significant evolution as they are convected to greater heliocentric distances. A progression of different types of structure are observed at increasing distance from the Sun.
P. R. Gazis, F. B. McDonald, R. A. Burger, S. Chalov, R. B. Decker, J. Dwyer, D. S. Intriligator, J. R. Jokipii, A. J. Lazarus, G. M. Mason, V. J. Pizzo, M. S. Potgieter, I. G. Richardson, L. J. Lanzerotti   +13 more
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Geomagnetic Effects of Corotating Interaction Regions

Solar Physics, 2017
We present an analysis of the geoeffectiveness of corotating interaction regions (CIRs), employing the data recorded from 25 January to 5 May 2005 and throughout 2008. These two intervals in the declining phase of Solar Cycle 23 are characterised by a particularly low number of interplanetary coronal mass ejections (ICMEs).
Vršnak, Bojan, Dumbović, Mateja, Čalogović, Jaša, Verbanac, Giuliana, Poljančić Beljan, Ivana   +4 more
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Numerical simulation of corotating interaction regions

AIP Conference Proceedings, 1996
We report on a numerical simulation of Corotating Interaction Regions (CIRs) in the solar wind. We employ an MHD calculation with a tilted dipole model: slow wind is assumed around the tilted current sheet. As a simplifying assumption the solar wind is kept radial, meridional and azimuthal deflections are neglected.
J. Kóta, J. R. Jokipii
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Modeling corotating interaction regions: From the Sun to 1AU

Journal of Atmospheric and Solar-Terrestrial Physics, 2007
Two types of dynamic features dominate the large-scale structure of the solar wind: corotating interaction regions (CIRs) and coronal mass ejections (CMEs). The former result from quasi-stationary conditions at the Sun, whereby solar rotation leads to parcels of plasma with different plasma and magnetic properties becoming radially aligned.
Pete Riley
exaly   +2 more sources

Relativistic cosmic rays and corotating interaction regions

Journal of Geophysical Research: Space Physics, 1981
Analyses of relativistic galactic cosmic ray intensity variations have been conducted to determine the nature of the modulations that are related to the presence of corotating interaction regions (CIR) in interplanetary space. The corotating interaction regions have been identified from the plasma and field observations recorded by Pioneer 10 and 11 ...
S. P. Duggal, B. T. Tsurutani, M. A. Pomerantz, C. H. Tsao, E. J. Smith   +4 more
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The tilts of corotating interaction regions at midheliographic latitudes

Journal of Geophysical Research: Space Physics, 1996
Previous analysis of midlatitude corotating interaction regions (CIRs) observed by Ulysses in the southern heliosphere has revealed that the flow downstream of the forward (F) shock (or wave) on the leading edge of a CIR generally turns northward and into the direction of planetary motion (westward), while the flow downstream of the reverse (R) shock ...
Pete Riley, J. T. Gosling, L. A. Weiss, V. J. Pizzo   +3 more
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Interaction of ICMEs with Corotating Interaction Region (CIR)

2023
The research in the scope of the ICOHOSS project is expected to significantly impact the understanding of the propagation and evolution of CMEs, which is one of the fundamental problems of Heliospheric Physics An an important factor in this endeavor is comprehending the evolution of CMEs in interplanetary space (studying different interactions it ...
Remeshan, Akshay Kumar, Dumbović, Mateja   +1 more
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Cross‐field diffusion in corotating interaction regions

Journal of Geophysical Research: Space Physics, 1995
Energetic ions associated with the forward and reverse shocks of corotating interaction regions (CIRs) are commonly observed at places within CIRs that are not magnetically connected to either shock. Examples have been documented with data from Pioneer 10 and 11 and Ulysses.
Devrie S. Intriligator, George L. Siscoe
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Corotating Interaction Regions

2016
When spacecraft started to explore the region beyond 1 AU, not surprisingly interesting phenomena were discovered. One of the first new phenomena to be identified was the corotating interaction region (CIR) (Smith and Wolfe 1976), which is the result of the interaction of adjacent fast and slow solar wind streams, as first predicted by Parker (1963 ...
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