Measurement and calculation of absolute single- and multiple-charge-exchange cross sections for Fe${}^{q+}$ ions impacting CO and CO${}_{2}$

Measurement and calculation of absolute single- and multiple-charge-exchange cross sections for Fe $^{q +}$ ions impacting CO and CO $_{2}$

J. Simcic, D. R. Schultz, R. J. Mawhorter, I. Čadež, J. B. Greenwood, A. Chutjian, C. M. Lisse, and S. J. Smith

Phys. Rev. A 81, 062715 – Published 30 June 2010; Erratum Phys. Rev. A 82, 019903 (2010)

Abstract

Absolute cross sections are reported for single, double, and triple charge exchange of Fe $^{q}$ $^{+}$ ( $q = 5 - 13$ ) ions with CO and CO $_{2}$ . The highly charged Fe ions are generated in an electron cyclotron resonance ion source. Absolute data are derived from knowledge of the target gas pressure, target path length, and incident and charge-exchanged ion currents. Experimental results are compared with new calculations of these cross sections in the $n$ -electron classical trajectory Monte Carlo approximation in which the ensuing radiative and nonradiative cascades are approximated with scaled hydrogenic transition probabilities and scaled Auger rates. The present data are needed in astrophysical applications of solar- and stellar-wind charge exchange with comets, planetary atmospheres, and circumstellar clouds.

Received 21 April 2010
Corrected 2 July 2010

DOI:https://doi.org/10.1103/PhysRevA.81.062715

Corrections

2 July 2010

Erratum

Publisher’s Note: Measurement and calculation of absolute single- and multiple-charge-exchange cross sections for Fe $^{q +}$ ions impacting CO and CO $_{2}$ [Phys. Rev. A 81, 062715 (2010)]

J. Simcic, D. R. Schultz, R. J. Mawhorter, I. Čadež, J. B. Greenwood, A. Chutjian, C. M. Lisse, and S. J. Smith

Phys. Rev. A 82, 019903 (2010)

Authors & Affiliations

J. Simcic¹, D. R. Schultz², R. J. Mawhorter³, I. Čadež⁴, J. B. Greenwood⁵, A. Chutjian¹, C. M. Lisse⁶, and S. J. Smith⁷

¹Atomic and Molecular Physics Group, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109-8099, USA
²Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6372, USA
³Department of Physics and Astronomy, Pomona College, Claremont, California 91711, USA
⁴Joef Stefan Institute, 1000 Ljubljana, Slovenia
⁵Physics Department, Queen’s University, Belfast BT7 1NN, United Kingdom
⁶Space Department, Applied Physics Laboratory, Johns Hopkins University, Laurel, Maryland 20732, USA
⁷Physics Department, Indiana Wesleyan University, Marion, Indiana 46953, USA

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Issue

Vol. 81, Iss. 6 — June 2010

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