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Approximating the X-ray spectrum emitted from astrophysical charge exchange

Smith, R. K.; Foster, A. R.; Brickhouse, N. S.

Charge exchange (CX), both onto ions in the solar wind and potentially in other astrophysical contexts, can create X-ray emission lines largely indistinguishable from those created in collisional or photoionized plasmas. The prime distinguishing characteristic is in the distinctly different line ratios generated by the CX process. A complete astro…

Suzaku observations of charge exchange emission from solar system objects

Futaana, Y.; Mitsuda, K.; Porter, F. S. +9 more

Recent results of charge exchange emission from solar system objects observed with the Japanese Suzaku satellite are reviewed. Suzaku is of great importance to investigate diffuse X-ray emission like the charge exchange from planetary exospheres and comets. The Suzaku studies of Earth's exosphere, Martian exosphere, Jupiter's aurorae, and comets a…