scholarly journals X-ray emission cross sections following charge exchange by multiply charged ions of astrophysical interest

2007 ◽  
Vol 58 ◽  
pp. 165-168 ◽  
Author(s):  
S Otranto ◽  
R E Olson ◽  
P Beiersdorfer
Keyword(s):  
Charge Exchange ◽  
Cross Sections ◽  
Multiply Charged Ions ◽  
Astrophysical Interest ◽  
X Ray ◽  
Multiply Charged ◽  
Charged Ions

Charge Exchange Cross Sections for Multiply-Charged Ions Colliding with Water

2009 ◽  
Author(s):  
S. Otranto ◽  
R. E. Olson ◽  
Floyd D. McDaniel ◽  
Barney L. Doyle
Keyword(s):  
Charge Exchange ◽  
Cross Sections ◽  
Multiply Charged Ions ◽  
Multiply Charged ◽  
Charged Ions

scholarly journals Cometary X-ray emission: theoretical cross sections following charge exchange by multiply charged ions of astrophysical interest

2008 ◽  
Vol 86 (1) ◽  
pp. 171-174 ◽  
Author(s):  
S Otranto ◽  
R E Olson ◽  
P Beiersdorfer
Keyword(s):  
Charge Exchange ◽  
Cross Sections ◽  
Lawrence Livermore National Laboratory ◽  
National Laboratory ◽  
Classical Trajectory ◽  
Astrophysical Interest ◽  
X Ray ◽  
Fitting Procedure ◽  
Classical Trajectory Monte Carlo ◽  
Charged Ions

The classical trajectory Monte Carlo (CTMC) method is used to calculate emission cross sections following charge exchange collisions involving highly charged ions of astrophysical interest and typical cometary targets. Comparison is made to experimental data obtained on the EBIT machine at Lawrence Livermore National Laboratory (LLNL) for O8+ 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 as well as those obtained by a fitting procedure using laboratory emission cross sections to reproduce the X-ray spectrum of comet C/LINEAR S4 measured on 14 July 2001.PACS Nos.: 34.70+e, 32.30.Rj, 32.70.Fw, 95.30.Ky

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