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arXiv · 0708.0233

EBIT Charge-Exchange Measurements and Astrophysical Applications

B. J. Wargelin·P. Beiersdorfer·G. V. Brown
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Abstract

The past decade has seen a surge of interest in astrophysical charge exchange (CX). The impetus was the discovery of X-ray emission from comets in 1996, soon followed by the observation of CX emission in planetary atmospheres and throughout the heliosphere. Geocoronal and heliospheric CX are now recognized to contribute a considerable fraction of the soft X-ray background, and stellar-wind charge exchange is expected to occur in the astrospheres surrounding many stars. CX may also contribute to X-ray line emission in supernova remnants, the Galactic Center, and the Galactic Ridge. This article summarizes the key aspects of CX X-ray emission and its astrophysical relevance, and reviews related laboratory measurements and theoretical predictions with particular attention to spectroscopy experiments conducted on electron beam ion traps.

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B. J. Wargelin, P. Beiersdorfer, G. V. Brown. 2007-08-01. EBIT Charge-Exchange Measurements and Astrophysical Applications. https://doi.org/10.1139/p07-125

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