DOI: 10.1002/grl.50604
论文题名: Probing IMF using nanodust measurements from inside Saturn's magnetosphere
作者: Hsu H.-W. ; Hansen K.C. ; Horányi M. ; Kempf S. ; Mocker A. ; Moragas-Klostermeyer G. ; Postberg F. ; Srama R. ; Zieger B.
刊名: Geophysical Research Letters
ISSN: 0094-8845
EISSN: 1944-8576
出版年: 2013
卷: 40, 期: 12 起始页码: 2902
结束页码: 2906
语种: 英语
英文关键词: dust
; magnetosphere
; saturn
; solar wind
Scopus关键词: Compression regions
; Dynamical properties
; In-situ measurement
; Interplanetary magnetic fields
; Interplanetary space
; saturn
; Solar wind parameters
; Solar wind-magnetosphere interactions
; Dust
; Interplanetary flight
; Solar wind
; Magnetosphere
; interplanetary dust
; magnetic field
; magnetosphere
; nanotechnology
; planetary atmosphere
; probe
; Saturn
; solar wind
英文摘要: We present a new concept of monitoring the interplanetary magnetic field (IMF) by using in situ measurements of nanodust stream particles in Saturn's magnetosphere. We show that the nanodust detection pattern obtained inside the magnetosphere resembles those observed in interplanetary space and is associated with the solar wind compression regions. Our dust dynamics model reproduces the observed nanodust dynamical properties as well as the detection pattern, suggesting that the ejected stream particles can reenter Saturn's magnetosphere at certain occasions due to the dynamical influence from the time-varying IMF. This method provides information on the IMF direction and a rough estimation on the solar wind compression arrival time at Saturn. Such information can be useful for studies related to the solar wind-magnetosphere interactions, especially when the solar wind parameters are not directly available. Key Points A new method to probe IMF with nanodust measurements inside the magnetosphere Under changing IMF, ejected nanoparticles can re-enter Saturn-s magnetosphere IMF direction and solar wind compression arrival time can be derived ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84880566394&doi=10.1002%2fgrl.50604&partnerID=40&md5=60945e08b385576cd5d207a572f98689
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6109
Appears in Collections: 气候减缓与适应
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作者单位: Laboratory for Atmospheric and Space Physics, University of Colorado, 3665 Discovery Drive Boulder, Colorado, CO 80303, United States
Recommended Citation:
Hsu H.-W.,Hansen K.C.,Horányi M.,et al. Probing IMF using nanodust measurements from inside Saturn's magnetosphere[J]. Geophysical Research Letters,2013-01-01,40(12).