Heliospheric and Geocoronal X-rays

Details Heliospheric and Geocoronal X-rays Heliospheric and Geocoronal X-rays

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agusm.p41a..02r&link_type=abstract

American Geophysical Union, Spring Meeting 2005, abstract #P41A-02

Physics

2724 Magnetopause, Cusp, And Boundary Layers, 2728 Magnetosheath, 7549 Ultraviolet Emissions, 7554 X Rays, Gamma Rays, And Neutrinos

Scientific paper

X-rays are generated throughout the heliosphere and the terrestrial magnetosheath as a consequence of charge transfer collisions between neutrals and heavy solar wind ions. Near Earth the highest production rate of this type of radiation is in the magnetosheath and particularly in the cusp regions. Due to its variability this radiation could be observable from suitable platforms and would be a valuable tool for monitoring space weather at Earth. Charge exchange also takes places between heavy solar wind ions and interstellar neutrals. The time variable component of this mechanism explains the long term enhancement contributions to the soft X-ray background seen in the ROSAT all-sky survey. Both types of X-ray emissions will be discussed.

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