A synoptic view of solar transient evolution in the inner heliosphere using the Heliospheric Imagers on STEREO

被引：156

作者：

Davies, J. A. ^{[1
]}

Harrison, R. A. ^{[1
]}

Rouillard, A. P. ^{[1
,4
]}

Sheeley, N. R., Jr. ^{[3
]}

Perry, C. H. ^{[1
]}

Bewsher, D. ^{[1
]}

Davis, C. J. ^{[1
]}

Eyles, C. J. ^{[1
,5
]}

Crothers, S. R. ^{[1
]}

Brown, D. S. ^{[2
]}

机构：

[1] Rutherford Appleton Lab, Space Sci & Technol Dept, Didcot OX11 0QX, Oxon, England

[2] Aberystwyth Univ, Inst Math & Phys, Aberystwyth SY23 3BZ, Dyfed, Wales

[3] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA

[4] Univ Southampton, Sch Phys & Astron, Southampton, Hants, England

[5] Univ Valencia, Grp Astron & Ciencias Espacia, Valencia, Spain

来源：

GEOPHYSICAL RESEARCH LETTERS | 2009年 / 36卷

关键词：

D O I：

10.1029/2008GL036182

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

By exploiting data from the STEREO/heliospheric imagers (HI) we extend a well-established technique developed for coronal analysis by producing time-elongation plots that reveal the nature of solar transient activity over a far more extensive region of the heliosphere than previously possible from coronagraph images. Despite the simplicity of these plots, their power in demonstrating how the plethora of ascending coronal features observed near the Sun evolve as they move antisunward is obvious. The time-elongation profile of a transient tracked by HI can, moreover, be used to establish its angle out of the plane-of-thesky; an illustration of such analysis reveals coronal mass ejection material that can be clearly observed propagating out to distances beyond 1AU. This work confirms the value of the time-elongation format in identifying/characterising transient activity in the inner heliosphere, whilst also validating the ability of HI to continuously monitor solar ejecta out to and beyond 1AU. Citation: Davies, J. A., R. A. Harrison, A. P. Rouillard, N. R. Sheeley Jr., C. H. Perry, D. Bewsher, C. J. Davis, C. J. Eyles, S. R. Crothers, and D. S. Brown (2009), A synoptic view of solar transient evolution in the inner heliosphere using the Heliospheric Imagers on STEREO, Geophys. Res. Lett., 36, L02102, doi: 10.1029/2008GL036182.

引用

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