Solar-Terrestrial Simulation in the STEREO Era: The January 24-25, 2007 Eruptions

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dc.creatorLugaz, N.
dc.creatorVourlidas, A.
dc.creatorRoussev, I. I.
dc.creatorMorgan, H.
dc.date2009-02-11
dc.date2009-03-20
dc.date.accessioned2026-07-07T13:15:27Z
dc.date.available2026-07-07T13:15:27Z
dc.descriptionThe SECCHI instruments aboard the recently launched STEREO spacecraft enable for the first time the continuous tracking of coronal mass ejections (CMEs) from the Sun to 1 AU. We analyze line-of-sight observations of the January 24-25, 2007 CMEs and fill the 20-hour gap in SECCHI coverage in January 25 by performing a numerical simulation using a three-dimensional magneto-hydrodynamic (MHD) code, the Space Weather Modeling Framework (SWMF). We show how the observations reflect the interaction of the two successive CMEs with each other and with the structured solar wind. We make detailed comparison between the observations and synthetic images from our model, including time-elongation maps for several position angles. Having numerical simulations to disentangle observational from physical effects, we are able to study the three-dimensional nature of the ejections and their evolution in the inner heliosphere. This study reflects the start of a new era where, on one hand, models of CME propagation and interaction can be fully tested by using heliospheric observations and, on the other hand, observations can be better interpreted by using global numerical models.
dc.description18 pages, 6 figures, accepted to the topical issue of Solar Physics on STEREO results at solar minimum
dc.identifierhttps://arxiv.org/abs/0902.2004
dc.identifierhttp://arxiv.org/abs/0902.2004
dc.identifierSolar Physics (2009), 256: 269-284
dc.identifierdoi:10.1007/s11207-009-9339-4
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/230477
dc.subjectSpace Physics
dc.titleSolar-Terrestrial Simulation in the STEREO Era: The January 24-25, 2007 Eruptions
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