"Dandelion" Filament Eruption and Coronal Waves Associated with a Solar Flare on 2011 February 16
Denis P. Cabezas Submitted: 2017-01-02 19:41
Coronal disturbances associated with solar flares, such as Hα Moreton waves,
X-ray waves, and extreme ultraviolet (EUV) coronal waves are discussed herein in
relation to magnetohydrodynamics fast-mode waves or shocks in the corona.
To understand the mechanism of coronal disturbances, full-disk solar observations
with high spatial and temporal resolution over multiple wavelengths are of crucial
We observed a filament eruption, whose shape is like a "dandelion", associated
with the M1.6 flare that occurred on 2011 February 16 in the Hα images taken
by the Flare Monitoring Telescope at Ica University, Peru. We derive the
three-dimensional velocity field of the erupting filament.
We also identify winking filaments that are located far from the flare site in the
Hα images, whereas no Moreton wave is observed. By comparing the temporal
evolution of the winking filaments with those of the coronal wave seen in the extreme
ultraviolet images data taken by the Atmospheric Imaging Assembly on board the
Solar Dynamics Observatory and by the Extreme Ultraviolet Imager on board the
Solar Terrestrial Relations Observatory-Ahead, we confirm that the winking
filaments were activated by the EUV coronal wave.
Authors: D.P. Cabezas, L.M. Martinez, Y.J. Buleje, M. Ishitsuka, J.K. Ishitsuka, S. Morita, A. Asai, S. UeNo, T.T. Ishii, R. Kitai, S. Takasao, Y. Yoshinaga, K. Otsuji, and K. Shibata
Publication Status: Accepted by ApJ, Dec. 31, 2016
Last Modified: 2017-01-04 12:18