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Plasmoid Ejection at a Solar Total Eclipse

Published online by Cambridge University Press:  27 June 2012

M. Faurobert ,
C. Fang ,
T. Corbard ,
S. Koutchmy ,
C. Bazin ,
D. Berghmans ,
A. De Groof ,
M. Druckmüller ,
E. Tavabi  and
A. Engell
...Show all authors
S. Koutchmy
Affiliation:
Institut d’Astrophysique de Paris, UMR 7095, CNRS and UPMC, 98 Bis Bd. Arago, 75014 Paris, France
C. Bazin
Affiliation:
Institut d’Astrophysique de Paris, UMR 7095, CNRS and UPMC, 98 Bis Bd. Arago, 75014 Paris, France
D. Berghmans
Affiliation:
Royal Observatory of Belgium, SIDC, Brussels, Belgium
A. De Groof
Affiliation:
ESA-Science and Robotic Exploration Directorate, Royal Observatory of Belgium, SIDC, Brussels, Belgium
M. Druckmüller
Affiliation:
Faculty of Mechanical Engineering, Brno University of Technology, Technická 2, 616 69 Brno, Czech Republic
E. Tavabi
Affiliation:
Physics Department, Payame Noor University, 19395-3697 Tehran, I, R. of Iran, Iran
A. Engell
Affiliation:
Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USA
B. Filippov
Affiliation:
Pushkov IZMIRAN, Moscow Region, Troitsk, Russia
L. Golub
Affiliation:
Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USA
Ph. Lamy
Affiliation:
Laboratoire d’Astrophysique de Marseille, UMR 6110, 13331 Marseille, France
J. Linker
Affiliation:
Predictive Science, Inc. San Diego, CA 92121, USA
Z. Mikic
Affiliation:
Predictive Science, Inc. San Diego, CA 92121, USA
J. Mouette
Affiliation:
Institut d’Astrophysique de Paris, UMR 7095, CNRS and UPMC, 98 Bis Bd. Arago, 75014 Paris, France
Ch. Nitschelm
Affiliation:
Instituto de Astronomía, Universidad Católica del Norte, Antofagasta, Chile
D. Seaton
Affiliation:
Royal Observatory of Belgium, SIDC, Brussels, Belgium
V. Slemzin
Affiliation:
FIAN, P.N. Lebedev Physical Institute, Moscow, Russia
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Abstract

The existence of coronal plasmoids has been postulated for many years in order to supply material to streamers and possibly to the solar wind (SW). The W-L SoHO C2 Lasco coronagraph observations were made under the 2.2 solar radii (R0) occulting disk to look at the ultimate sources of the SW; EUV imagers are preferably devoted to the analysis of the corona on and very near the solar disk. Here, in addition to eclipse white-light (W-L) snapshots, we used the new SWAP space-borne imager designed for the systematic survey of coronal activity in the EUV lines near 17.4 nm, over a field of view (FOV) up to 2 R0. Using summed and co-aligned images, the corona can then be evaluated for the 1st time up to the limit of this FOV. At the time of the July 11, 2010, solar total eclipse a 20h continuous run of observations was collected, including images taken during eclipse totality from several ground observing locations where W-L data were collected. A plasmoid-like off-limb event was followed using the SWAP summed

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 55: 4th French-Chinese Meeting on Solar Physics - Understanding Solar Activity: Advances and Challenges , 2012 , pp. 223 - 226
Copyright
© EAS, EDP Sciences 2012

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