IAFE   05512
INSTITUTO DE ASTRONOMIA Y FISICA DEL ESPACIO
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
A Moreton wave and its coronal counterparts
Autor/es:
HEBE CREMADES; FERNANDO LÓPEZ; DAVID LONG; MARÍA LUISA LUONI; CARLOS FRANCILE; CRISTINA MANDRINI
Lugar:
San Juan
Reunión:
Congreso; 59ª Reunión Anual de la Asociación Argentina de Astronomía; 2016
Institución organizadora:
Asociación Argentina de Astronomía
Resumen:
On 29 March 2014, a Moreton wave was detected in AR 12017 with the Halpha SolarTelescope for Argentina (HASTA) in association with an X1 flare. Several phenomena took place in various regimes in connection with this event, such as low coronal waves, dimmings and a coronal mass ejection (CME). We investigate their role and relationship with the Moreton wave to shed light on issues so far under debate. We analyze its connection with waves observed in the low corona with the Atmospheric Imaging Assembly aboard the Solar Dynamics Observatory (SDO/AIA), as well as with the ensuing CME, via kinematics analyses. We build stack plots from sequences of images obtained at different wavelengths to track wave fronts along several directions and find links between the features observed in the chromosphere and low corona, as well as in the associated CME. We also derive the shock front properties. We propose a geometrical model of the wave to explain the observed wave fronts as the photospheric and chromospheric traces of an expanding and outward-traveling bubble intersecting the Sun.