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Article
Cometary X-Rays: Line Emission Cross Sections for Multiply Charged Solar Wind Ion Charge Exchange
Journal of Physics B: Atomic, Molecular and Optical Physics
  • Sebastian Otranto, Missouri University of Science and Technology
  • Ronald E. Olson, Missouri University of Science and Technology
  • P. Beiersdorfer
Abstract
Absolute line emission cross sections are presented for 1 keV amu−1 charge-exchange collisions of multiply charged solar wind ions with H2O. These cross sections can be used to model charge-exchange processes with cometary targets with similar binding energies such as H, O, CO2 and CO. A parameter-free model is used to successfully predict the recently observed x-ray spectra of comet Linear C/1999 S4 and McNaught-Hartley C/1999 T1. We show that the resulting spectrum is extremely sensitive to the time variations of the solar wind composition.
Department(s)
Physics
Sponsor(s)
National Agency for the Promotion of Science and Technology (Argentina)
United States. National Aeronautics and Space Administration
United States. Department of Energy
Keywords and Phrases
  • Astroparticles,
  • Astrophysics
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2007 Institute of Physics - IOP Publishing, All rights reserved.
Publication Date
5-1-2007
Disciplines
Citation Information
Sebastian Otranto, Ronald E. Olson and P. Beiersdorfer. "Cometary X-Rays: Line Emission Cross Sections for Multiply Charged Solar Wind Ion Charge Exchange" Journal of Physics B: Atomic, Molecular and Optical Physics (2007)
Available at: http://works.bepress.com/ronald-olson/14/