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\journalvol{57}
\journalyear{2014}
\journaleditors{A.C. Rovero, C. Beaugé, L.J. Pellizza, M. Lares}

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\title{Morfología de una eyección coronal de masa polar}

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\author{Cabello I.\inst{1}\inst{2}, Cremades H.\inst{1}\inst{2}, Balmaceda L.A.\inst{3}\inst{4}}

\institute{Universidad Tecnológica Nacional - Facultad Regional de Mendoza \and
CONICET \and Instituto Nacional de Pesquisas Espaciais \and ICATE-CONICET}

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\abstract{Las eyecciones coronales de masa (CMEs) son los principales modificadores
del clima espacial y las condiciones de la heliosfera. Desde las primeras
detecciones de CMEs en luz blanca hace cuatro décadas se han hecho grandes
descubrimientos en torno a diversos de sus aspectos, pero aún se desconoce
su estructura interna y cómo esta estructura evoluciona desde la baja
corona hasta adentrarse en la heliosfera. Las imágenes de vista
estereoscópica provistas por los instrumentos de STEREO/SECCHI, en
combinación con las imágenes desde la perspectiva terrestre tomadas
simultáneamente por SOHO/LASCO y SDO/AIA, constituyen una excepcional
oportunidad para estudiar estos aspectos.
Una CME particular, observada
por las naves STEREO en situación de cuadratura y propagándose a latitudes
polares, es examinada desde su nacimiento en la baja corona y seguida en
los campos visuales de los coronógrafos de STEREO y SOHO. En particular,
se investigan la inclinación del eje principal de simetría de la CME y las
tasas de expansión en dos direcciones ortogonales. Asimismo, la morfología
y evolución del evento son puestos en el contexto de su fuente solar y la
corona que lo rodea.}

\keywords{Sun: corona --- Sun: coronal mass ejections (CMEs) --- Sun: activity}

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\mail{icabello@mendoza-conicet.gob.ar}

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