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Models of Heliospheric solar wind charge exchange X-ray emission

Dimitra Koutroumpa 1 
LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales
Abstract : The first models of the solar wind charge exchange (SWCX) X-ray production in the heliosphere were developed shortly after the discovery of SWCX emission at the end of 1990s. Since then, continuous monitoring of the global solar wind evolution through the solar cycle has allowed better constraints on its interaction with the interstellar neutrals. We have a fairly accurate description of the interstellar neutral density distributions in interplanetary space. However, the solar wind heavy ion fluxes, and especially their short term variability and propagation through interplanetary space, have remained relatively elusive due to the sparseness or lack of in situ data, especially towards high ecliptic latitudes. In this talk, I will present a summary the heliospheric SWCX modeling efforts, and an overview of the global solar cycle variability of heliospheric SWCX emission, while commenting on the difficulties of modeling the real-time variability of the heliospheric X-ray signal.
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Submitted on : Monday, April 11, 2016 - 6:23:30 PM
Last modification on : Tuesday, November 16, 2021 - 5:23:50 AM



Dimitra Koutroumpa. Models of Heliospheric solar wind charge exchange X-ray emission. 15th High Energy Astrophysics Division Meeting, Apr 2016, Naples, Florida, United States. pp.200.02. ⟨insu-01301232⟩



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