Coronal Mass Ejections travel time. Issue Volume 12:Issue S328(2016) (12th September 2017)

• Record Type: Journal Article
• Authors: Braga, Carlos Roberto; de Mendonça, Rafael Rodrigues Souza; Dal Lago, Alisson; Echer, Ezequiel
• Editors: Nandy, D.; Valio, A.; Petit, P.
• Is Part Of: Proceedings of the International Astronomical Union. Volume 12:Issue S328(2016)
• Page Start: 218
• Page End: 220
• Publication Date: 2017-09-12
• Subjects: coronal mass ejections (CMEs), -- halo CMEs, -- interplanetary disturbances, -- magnetic clouds; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921317003714
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: Coronal mass ejections (CMEs) are the main source of intense geomagnetic storms when they are earthward directed. Studying their travel time is a key-point to understand when the disturbance will be observed at Earth. In this work, we study the CME that originated the interplanetary disturbance observed on 2013/10/02. According to the observations, the CME that caused the interplanetary disturbance was ejected on 2013/09/29. We obtained the CME speed and estimate of the time of arrival at the Lagrangian Point L1 using the concept of expansion speed. We found that observed and estimated times of arrival of the shock differ between 2 and 23 hours depending on method used to estimate the radial speed.