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Conference papers

Charge exchange X-ray emission in the heliosphere and beyond

Dimitra Koutroumpa 1
LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales
Abstract : Charge exchange (CX) is a basic physical process involving the transfer of bound electrons between colliding particles. In the solar system, highly-charged solar wind ions collide with neutral particles from cometary and planetary (e.g. Mars, Earth) environments, as well as interstellar atoms sweeping through the heliosphere, and produce X-rays through radiative decay. I will present an overview of our current knowledge of the CX X-ray emission, focusing mainly on the heliospheric component which, along with CX emission from the Earth's geocorona, surrounds Earth-bound observatories and adds a variable background to all X-ray observations. Current studies combine theoretical modeling and observational analyses from Suzaku, XMM-Newton and Chandra in order to constrain this emission and its contribution to the diffuse soft X-ray background.
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Submitted on : Tuesday, April 10, 2012 - 2:56:05 PM
Last modification on : Wednesday, April 7, 2021 - 8:26:02 PM



Dimitra Koutroumpa. Charge exchange X-ray emission in the heliosphere and beyond. AIP Conference Proceedings 1427: SUZAKU 2011: Exploring the X-ray Universe: Suzaku and Beyond, Jul 2011, Palo Alto, United States. pp.33-39, ⟨10.1063/1.3696147⟩. ⟨hal-00686521⟩



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