Charge-exchange x-rays from the heliospheric termination shock. An outside view.

Details Charge-exchange x-rays from the heliospheric termination shock. An outside view. Charge-exchange x-rays from the heliospheric termination shock. An outside view.

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agusm.p43a..07m&link_type=abstract

American Geophysical Union, Spring Meeting 2005, abstract #P43A-07

Other

7554 X Rays, Gamma Rays, And Neutrinos

Scientific paper

The outer heliosphere, and the termination shock in particular, produces X-ray emission. This emission is due to the charge exchange process between highly ionized minor ions of the solar wind interacting with neutral hydrogen atoms from our local interstellar medium. In this work, we combine high-resolution 2D magnetohydrodynamic simulations with an X-ray emission mechanism in order to produce two-dimensional X-ray brightness maps of the heliosphere as seen from the outside. The model is capable of tracing the full evolution of solar wind ion species along the solar wind stream lines, and thus correctly treats both the collisionally thin and collisionally thick regimes. X-ray emission from charge transfer should also occur in the astrospheres of other stars, so that this technique may ultimately be used to probe the properties of stellar winds of nearby stars.

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