Two step mechanism for Moreton wave excitations in a blast-wave scenario. A case study: the December 06, 2006 event

KRAUSE, G., CÉCERE, M., FRANCILE, C., COSTA, A., ELASKAR, S., SCHNEITER, M.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY

WILEY-BLACKWELL PUBLISHING, INC

Lugar: Londres; Año: 2015 vol. 453 p. 2799 - 2807

0035-8711

We examine the capability of a blast-wave scenario -associated to a coronal flare or to the expansion of CME flanks- to reproduce a chromospheric Moreton phenomenon.We also simulate the Moreton event of December 06, 2006 considering both the corona and the chromosphere. To obtain a sufficiently strong coronal shock -able to generate a detectable chromospheric Moreton wave- a relatively low magnetic field intensity is required, in comparison with the active region values. Employing reasonable coronal constraints, we show that a flare ignited blast-wave or the expansion of the CME flanksemulated as an instantaneous or a temporal piston model, respectively, are capable to reproduce the observations.