A Moreton wave and its coronal counterparts

FRANCILE, C.N.; LÓPEZ, FERNANDO M.; CREMADES, H.; MANDRINI, C.H.; LUONI, M.L.; LONG, D.

Congreso; 59ª Reunión Anual de la Asociación Argentina de Astronomía; 2016

On 29 March 2014, a Moreton wave was detected in AR 12017 with the H-alpha Solar Telescopefor Argentina (HASTA) in association with an X1 flare. Several phenomena took place in various regimes inconnection with this event, such as low coronal waves, dimmings and a coronal mass ejection (CME). We investigatetheir role and relationship with the Moreton wave to shed light on issues so far under debate. We analyzeits connection with waves observed in the low corona with the Atmospheric Imaging Assembly aboard the SolarDynamics Observatory (SDO/AIA), as well as with the ensuing CME, via kinematics analyses. We build stackplots from sequences of images obtained at different wavelengths to track wave fronts along several directionsand find links between the features observed in the chromosphere and low corona, as well as in the associatedCME. We also derive the shock front properties. We propose a geometrical model of the wave to explain theobserved wave fronts as the photospheric and chromospheric traces of an expanding and outward-traveling bubbleintersecting the Sun.