NSSC OpenIR  > 空间科学部
The Heliospheric Plasma Sheet Observed in situ by Three Spacecraft over Four Solar Rotations
Simunac, K. D. C.; Galvin, A. B.; Farrugia, C. J.; Kistler, L. M.; Kucharek, H.; Lavraud, B.; Liu, Y. C. -M.; Luhmann, J. G.; Ogilvie, K. W.; Opitz, A.; Popecki, M. A.; Sauvaud, J. -A.; Wang, S.; Simunac, KDC (reprint author), Univ New Hampshire, Durham, NH 03824 USA.
Department空间科学部
Source PublicationSOLAR PHYSICS
2012
Volume281Issue:1Pages:423-447
ISSN0038-0938
Language英语
AbstractIn this paper we present in situ observations of the heliospheric plasma sheet (HPS) from STEREO-A, Wind, and STEREO-B over four solar rotations in the declining phase of Solar Cycle 23, covering late March through late June 2007. During this time period the three spacecraft were located in the ecliptic plane, and were gradually separating in heliographic longitude from about 3 degrees to 14 degrees. Crossings of the HPS were identified using the following criteria: reversal of the interplanetary magnetic field sector, enhanced proton density, and local minima in both the proton specific entropy argument and in the alpha particle-to-proton number density ratio (N (a)/N (p)). Two interplanetary coronal mass ejections (ICMEs) were observed during the third solar rotation of our study period, which disrupted the HPS from its quasi-stationary state. We find differences in the in situ proton parameters at the HPS between the three spacecraft despite temporal separations of less than one day. We attribute these differences to both small separations in heliographic latitude and radial evolution of the solar wind leading to the development of compression regions associated with stream interaction regions (SIRs). We also observed a modest enhancement in the density of iron ions at the HPS.; In this paper we present in situ observations of the heliospheric plasma sheet (HPS) from STEREO-A, Wind, and STEREO-B over four solar rotations in the declining phase of Solar Cycle 23, covering late March through late June 2007. During this time period the three spacecraft were located in the ecliptic plane, and were gradually separating in heliographic longitude from about 3 degrees to 14 degrees. Crossings of the HPS were identified using the following criteria: reversal of the interplanetary magnetic field sector, enhanced proton density, and local minima in both the proton specific entropy argument and in the alpha particle-to-proton number density ratio (N (a)/N (p)). Two interplanetary coronal mass ejections (ICMEs) were observed during the third solar rotation of our study period, which disrupted the HPS from its quasi-stationary state. We find differences in the in situ proton parameters at the HPS between the three spacecraft despite temporal separations of less than one day. We attribute these differences to both small separations in heliographic latitude and radial evolution of the solar wind leading to the development of compression regions associated with stream interaction regions (SIRs). We also observed a modest enhancement in the density of iron ions at the HPS.
Indexed BySCI
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/3164
Collection空间科学部
Corresponding AuthorSimunac, KDC (reprint author), Univ New Hampshire, Durham, NH 03824 USA.
Recommended Citation
GB/T 7714
Simunac, K. D. C.,Galvin, A. B.,Farrugia, C. J.,et al. The Heliospheric Plasma Sheet Observed in situ by Three Spacecraft over Four Solar Rotations[J]. SOLAR PHYSICS,2012,281(1):423-447.
APA Simunac, K. D. C..,Galvin, A. B..,Farrugia, C. J..,Kistler, L. M..,Kucharek, H..,...&Simunac, KDC .(2012).The Heliospheric Plasma Sheet Observed in situ by Three Spacecraft over Four Solar Rotations.SOLAR PHYSICS,281(1),423-447.
MLA Simunac, K. D. C.,et al."The Heliospheric Plasma Sheet Observed in situ by Three Spacecraft over Four Solar Rotations".SOLAR PHYSICS 281.1(2012):423-447.
Files in This Item:
File Name/Size DocType Version Access License
20122811423.pdf(6417KB) 开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Simunac, K. D. C.]'s Articles
[Galvin, A. B.]'s Articles
[Farrugia, C. J.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Simunac, K. D. C.]'s Articles
[Galvin, A. B.]'s Articles
[Farrugia, C. J.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Simunac, K. D. C.]'s Articles
[Galvin, A. B.]'s Articles
[Farrugia, C. J.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.