التفاصيل البيبلوغرافية
| العنوان: |
Determination of CME Trajectories by Stereoscopic Analysis of STEREO/SECCHI Data. |
| المؤلفون: |
Liewer, P. C., DeJong, E. M., Hall, J. R., Howard, R. A., Thompson, W. T., Thernisien, A. |
| المصدر: |
AIP Conference Proceedings; 3/25/2010, Vol. 1216 Issue 1, p412-415, 4p, 1 Black and White Photograph, 2 Diagrams, 1 Chart, 1 Graph |
| مصطلحات موضوعية: |
SPACE trajectories, CORONAL mass ejections, SPHERICAL astronomy, SOLAR activity, SPACE vehicles |
| مستخلص: |
The SECCHI coronagraphs on the twin STEREO spacecraft give simultaneous views of coronal mass ejections (CMEs) from two viewpoints. Stereoscopic analysis of a time series of CME coronagraph image pairs allows one to determine the three-dimensional (longitude, latitude and velocity) trajectory of the CME. Here, we briefly describe the tie-pointing and triangulation techniques used to determine the trajectories of five CMEs. The trajectories are compared with trajectories determined using two other stereoscopic techniques. We find good agreement on the results from the different techniques. For the four cases where the solar source was known, the longitude and latitude of the CME trajectory beyond the corona are compared with those of the source region to test the assumption of radial propagation from the source. Our results support the standard view that CMEs can be deflected significantly in latitude as they propagate through the low corona. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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