排序方式: 共有24条查询结果,搜索用时 15 毫秒
21.
R. J. Forsyth V. Bothmer C. Cid N. U. Crooker T. S. Horbury K. Kecskemety B. Klecker J. A. Linker D. Odstrcil M. J. Reiner I. G. Richardson J. Rodriguez-Pacheco J. M. Schmidt R. F. Wimmer-Schweingruber 《Space Science Reviews》2006,123(1-3):383-416
This report assesses the current status of research relating the origin at the Sun, the evolution through the inner heliosphere and the effects on the inner heliosphere of the interplanetary counterparts of coronal mass ejections (ICMEs). The signatures of ICMEs measured by in-situ spacecraft are determined both by the physical processes associated with their origin in the low corona, as observed by space-borne coronagraphs, and by the physical processes occurring as the ICMEs propagate out through the inner heliosphere, interacting with the ambient solar wind. The solar and in-situ observations are discussed as are efforts to model the evolution of ICMEs from the Sun out to 1 AU. 相似文献
22.
Ulysses observed well-defined stream interaction regions, SIRs, associated with solar wind stream structure up to a latitude of S65°
and shocks to at least a latitude of S71° during the second polar orbit. These SIRs and shocks produced a substantial heliospheric
processing of the solar wind. Only a subset of the SIRs recurred on successive solar rotations and only about half of the
well-defined SIRs observed poleward of S9.8° were bounded by forward-reverse shock pairs. The majority of the SIRs had local
magnetic topologies and azimuthal orientations similar to, but meridional tilts different from, those observed in the first
polar orbit when most SIRs corotated with the Sun. The irregular meridional tilts presumably were a consequence of a complex
coronal geometry and the temporally evolving nature of the solar wind flow at this time. A lack of reverse shocks poleward
of S54° (with one exception) and a lack of well defined SIRs poleward of S65° is evidence that SIRs develop more slowly with
distance at high latitudes.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献
23.
Pete Riley C. P. Sonett A. Balogh R. J. Forsyth E. E. Scime W. C. Feldman 《Space Science Reviews》1995,72(1-2):197-200
We present preliminary results of a study of solar wind Alfvénic fluctuations using magnetometer and plasma measurements from the spacecraft Ulysses. We focus on a particular case study, and use wave language to discuss the fluctuations. The observations are consistent with a mixture of convected structures and Alfvén wave trains. Furthermore, our results tend to suggest that the Alfvénic-fluctuations propagate in the radial direction. 相似文献
24.
In a Corotating Interaction Region (CIR) the stream interface is identified as a relatively sharp density drop, temperature
rise, and flow shear in the solar wind, and is now generally believed to mark the boundary between solar wind which was originally
slow when it left the Sun and solar wind which was originally fast. This paper summarises some important facts and open questions
about the origin and nature of the boundary between fast and slow solar wind near the Sun, the evolution of stream interfaces
with heliocentric distance in the inner heliosphere, and their relationship.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献