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| Paper: |
Evolution of a Halo Coronal Mass Ejection of March 09, 2012 Associated with EUV Waves |
| Volume: |
504, Coimbra Solar Physics Meeting: Ground-based Solar Observations in the Space Instrumentation Era |
| Page: |
67 |
| Authors: |
Fernandes, F. C. R.; Sampaio, L. S.; Cunha-Silva, R. D. |
| Abstract: |
In this work we analyse the evolution of a halo coronal mass ejection (CME) observed on March 09, 2012, exhibiting a velocity of 950 ms-1. The EUV images recorded by the Extreme Ultraviolet Imager (EUVI), aboard STEREO show evidence of a shockwave produced by the expansion of the CME. The event was also associated with an M.6 class X-ray solar flare, starting at 03:22 UT, peaking at 03:53 UT and ending at 04:18 UT. Type II radio emission was also recorded in the metric wavelength (100-250 MHz) by e-Callisto spectrographs. The following spectrum-temporal parameters of type II burst were estimated: starting frequency of (220 ± 5) MHz, ending frequency of (170 ± 5) MHz, frequency bandwidth of 34.3 MHz and starting and ending time of about 03:41:51 UT and 03:46:49 UT, respectively. |
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