Configuration of a coronal mass ejection from birth and throughout the inner heliosphere

I. CABELLO; H. CREMADES; L. BALMACEDA

Buenos Aires

Congreso; XI COLAGE; 2018

Coronal mass ejections (CMEs) are a consequence of the solar magnetism, being expeled as large amounts of plasma from the Sun into the heliosphere and are considered the main triggers of geomagnetic storms. Since their discovery decades ago, the morphology and evolution of CMEs have been an important issue of concern. Moreover, the interpretation and analysis of observations of CMEs from a single point of view are difficult and ambiguous. The Solar Terrestrial Relations Observatory (STEREO) mission offers images from different vantage points that, combined with those from Earth?s view, provide a unique opportunity to analyze the morphology and evolution of CMEs by taking into account their three-dimensional structure. We study the size and orientation of an Earth-directed CME from birth and along its propagation in the corona and the inner heliosphere. No significant changes in orientation are observed, but size and morphology do vary along its evolution.