NAOC Open IR  > 空间科学研究部
THREE-DIMENSIONAL MORPHOLOGY OF A CORONAL PROMINENCE CAVITY
Gibson, S. E.1; Kucera, T. A.2; Rastawicki, D.3; Dove, J.4; De Toma, G.1; Hao, J.5; Hill, S.6; Hudson, H. S.7; Marque, C.8; McIntosh, P. S.9; Rachmeler, L.1; Reeves, K. K.10; Schmieder, B.11; Schmit, D. J.12; Seaton, D. B.8; Sterling, A. C.13; Tripathi, D.14; Williams, D. R.15; Zhang, M.5
2010-12-01
Source PublicationASTROPHYSICAL JOURNAL
Volume724Issue:2Pages:1133-1146
AbstractWe present a three-dimensional density model of coronal prominence cavities, and a morphological fit that has been tightly constrained by a uniquely well-observed cavity. Observations were obtained as part of an International Heliophysical Year campaign by instruments from a variety of space-and ground-based observatories, spanning wavelengths from radio to soft X-ray to integrated white light. From these data it is clear that the prominence cavity is the limb manifestation of a longitudinally extended polar-crown filament channel, and that the cavity is a region of low density relative to the surrounding corona. As a first step toward quantifying density and temperature from campaign spectroscopic data, we establish the three-dimensional morphology of the cavity. This is critical for taking line-of-sight projection effects into account, since cavities are not localized in the plane of the sky and the corona is optically thin. We have augmented a global coronal streamer model to include a tunnel-like cavity with elliptical cross-section and a Gaussian variation of height along the tunnel length. We have developed a semi-automated routine that fits ellipses to cross-sections of the cavity as it rotates past the solar limb, and have applied it to Extreme Ultraviolet Imager observations from the two Solar Terrestrial Relations Observatory spacecraft. This defines the morphological parameters of our model, from which we reproduce forward-modeled cavity observables. We find that cavity morphology and orientation, in combination with the viewpoints of the observing spacecraft, explain the observed variation in cavity visibility for the east versus west limbs.
KeywordSun: Corona Sun: Coronal Mass Ejections (Cmes) Sun: Magnetic Topology Sun: Filaments Prominences
DOI10.1088/0004-637X/724/2/1133
Indexed BySCI
Language英语
WOS IDWOS:000284149000023
Citation statistics
Cited Times:66[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/7725
Collection空间科学研究部
Affiliation1.HAO NCAR, Boulder, CO 80307 USA
2.NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
3.Stanford Univ, Stanford, CA 94305 USA
4.Metropolitan State Coll, Denver, CO 80217 USA
5.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
6.NOAA, Natl Weather Serv, Space Weather Predict Ctr, Boulder, CO 80305 USA
7.Univ Calif Berkeley, Space Sci Labs, Berkeley, CA 94720 USA
8.Royal Observ Belgium, B-1180 Brussels, Belgium
9.HelioSynopt Inc, Boulder, CO 80301 USA
10.Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA
11.LESIA, Observ Paris, Sect Meudon, Paris, France
12.Univ Colorado, Dept Astrophys & Planetary Sci, Boulder, CO 80305 USA
13.NASA, Marshall Space Flight Ctr, Space Sci Dept SD50, Huntsville, AL 35812 USA
14.Univ Cambridge, DAMTP, Ctr Math Sci, Cambridge CB3 0WA, England
15.Univ Coll London, Mullard Space Sci Lab, Dorking RH5 6NT, Surrey, England
Recommended Citation
GB/T 7714
Gibson, S. E.,Kucera, T. A.,Rastawicki, D.,et al. THREE-DIMENSIONAL MORPHOLOGY OF A CORONAL PROMINENCE CAVITY[J]. ASTROPHYSICAL JOURNAL,2010,724(2):1133-1146.
APA Gibson, S. E..,Kucera, T. A..,Rastawicki, D..,Dove, J..,De Toma, G..,...&Zhang, M..(2010).THREE-DIMENSIONAL MORPHOLOGY OF A CORONAL PROMINENCE CAVITY.ASTROPHYSICAL JOURNAL,724(2),1133-1146.
MLA Gibson, S. E.,et al."THREE-DIMENSIONAL MORPHOLOGY OF A CORONAL PROMINENCE CAVITY".ASTROPHYSICAL JOURNAL 724.2(2010):1133-1146.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Gibson, S. E.]'s Articles
[Kucera, T. A.]'s Articles
[Rastawicki, D.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Gibson, S. E.]'s Articles
[Kucera, T. A.]'s Articles
[Rastawicki, D.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Gibson, S. E.]'s Articles
[Kucera, T. A.]'s Articles
[Rastawicki, D.]'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.