Observational evidence of CMEs interacting in the inner heliosphere as inferred from MHD simulations

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dc.creatorLugaz, N.
dc.creatorManchester IV, W. B.
dc.creatorRoussev, I. I.
dc.creatorGombosi, T. I.
dc.date2008-08-27
dc.date.accessioned2026-07-07T09:58:48Z
dc.date.available2026-07-07T09:58:48Z
dc.descriptionThe interaction of multiple Coronal Mass Ejections (CMEs) has been observed by LASCO coronagraphs and by near-Earth spacecraft, and it is thought to be an important cause of geo-effective storms, large Solar Energetic Particles events and intense Type II radio bursts. New and future missions such as STEREO, the LWS Sentinels, and the Solar Orbiter will provide additional observations of the interaction of multiple CMEs between the Sun and the Earth. We present the results of simulations of two and more CMEs interacting in the inner heliosphere performed with the Space Weather Modeling Framework (SWMF). Based on those simulations, we discuss the observational evidence of the interaction of multiple CMEs, both in situ and from coronagraphs. The clearest evidence of the interaction of the CMEs are the large temperature in the sheath, due to the shocks merging, and the brightness increase in coronagraphic images, associated with the interaction of the leading edges. The importance of having multiple satellites at different distances and angular positions from the Sun is also discussed.
dc.description6 pages, 3 figures, ISROSES conference
dc.identifierhttps://arxiv.org/abs/0808.3775
dc.identifierhttp://arxiv.org/abs/0808.3775
dc.identifierJournal of Atmospheric and Solar-Terrestrial Physics 70 (2008) 598-604
dc.identifierdoi:10.1016/j.jastp.2007.08.033
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/167854
dc.subjectSpace Physics
dc.titleObservational evidence of CMEs interacting in the inner heliosphere as inferred from MHD simulations
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