X-Ray Emission Cross Sections following Charge Exchange by Multiply-Charged Ions of Astrophysical Interest

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The CTMC method is used to calculate emission cross sections following charge exchange processes involving highly charged ions of astrophysical interest and typical cometary targets. Comparison is made to experimental data obtained on the EBIT-I machine at Lawrence Livermore National Laboratory LLNL for O{sup 8+} projectiles impinging on different targets at a collision energy of 10 eV/amu. The theoretical cross sections are used together with ion abundances measured by the Advanced Composition Explorer to reproduce cometary spectra. Discrepancies due to different estimated delays of solar wind events between the comet and the Earth-orbiting satellite are discussed.

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Otranto, S; Olson, R E & Beiersdorfer, P March 12, 2007.

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The CTMC method is used to calculate emission cross sections following charge exchange processes involving highly charged ions of astrophysical interest and typical cometary targets. Comparison is made to experimental data obtained on the EBIT-I machine at Lawrence Livermore National Laboratory LLNL for O{sup 8+} projectiles impinging on different targets at a collision energy of 10 eV/amu. The theoretical cross sections are used together with ion abundances measured by the Advanced Composition Explorer to reproduce cometary spectra. Discrepancies due to different estimated delays of solar wind events between the comet and the Earth-orbiting satellite are discussed.

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PDF-file: 6 pages; size: 98.4 Kbytes

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  • Journal Name: Journal of Physics: Conference Series, vol. 58, N/A, November 30, 2006, pp. 165; Journal Volume: 58

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  • Report No.: UCRL-JRNL-229081
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 908097
  • Archival Resource Key: ark:/67531/metadc881676

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • March 12, 2007

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  • Sept. 22, 2016, 2:13 a.m.

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  • Dec. 9, 2016, 9:01 p.m.

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Otranto, S; Olson, R E & Beiersdorfer, P. X-Ray Emission Cross Sections following Charge Exchange by Multiply-Charged Ions of Astrophysical Interest, article, March 12, 2007; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc881676/: accessed October 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.