Radiative charge transfer in collisions of C with He+
Abstract
Radiative charge exchange collisions between a carbon atom $${\rm{C}}({}^{3}P)$$ and a helium ion $${\mathrm{He}}^{+}({}^{2}S)$$, both in their ground state, are investigated theoretically. Detailed quantum chemistry calculations are carried out to obtain potential energy curves and transition dipole matrix elements for doublet and quartet molecular states of the HeC+ cation. Radiative charge transfer cross sections and rate coefficients are calculated and are found at thermal and lower energies to be large compared to those for direct charge transfer. The present results might be applicable to modelling the complex interplay of $$[{\rm{C}}\,{\rm{II}}]$$ (or $${{\rm{C}}}^{+}$$), $${\rm{C}}$$, and $$\mathrm{CO}$$ at the boundaries of interstellar photon dominated regions and in x-ray dominated regions, where the abundance of $${\mathrm{He}}^{+}$$ affects the abundance of $$\mathrm{CO}$$.
- Authors:
-
- Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (United States). Inst. for Theoretical Atomic and Molecular Physics
- Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (United States). Inst. for Theoretical Atomic and Molecular Physics; Queen's Univ., Belfast, Northern Ireland (United Kingdom). School of Mathematics and Physics, Centre for Theoretical Atomic, Molecular, and Optical Physics
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1523379
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Physics. B, Atomic, Molecular and Optical Physics
- Additional Journal Information:
- Journal Volume: 50; Journal Issue: 4; Journal ID: ISSN 0953-4075
- Publisher:
- IOP Publishing
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 74 ATOMIC AND MOLECULAR PHYSICS
Citation Formats
Babb, James F., and McLaughlin, B. M. Radiative charge transfer in collisions of C with He+. United States: N. p., 2017.
Web. doi:10.1088/1361-6455/aa54f4.
Babb, James F., & McLaughlin, B. M. Radiative charge transfer in collisions of C with He+. United States. https://doi.org/10.1088/1361-6455/aa54f4
Babb, James F., and McLaughlin, B. M. Tue .
"Radiative charge transfer in collisions of C with He+". United States. https://doi.org/10.1088/1361-6455/aa54f4. https://www.osti.gov/servlets/purl/1523379.
@article{osti_1523379,
title = {Radiative charge transfer in collisions of C with He+},
author = {Babb, James F. and McLaughlin, B. M.},
abstractNote = {Radiative charge exchange collisions between a carbon atom ${\rm{C}}({}^{3}P)$ and a helium ion ${\mathrm{He}}^{+}({}^{2}S)$, both in their ground state, are investigated theoretically. Detailed quantum chemistry calculations are carried out to obtain potential energy curves and transition dipole matrix elements for doublet and quartet molecular states of the HeC+ cation. Radiative charge transfer cross sections and rate coefficients are calculated and are found at thermal and lower energies to be large compared to those for direct charge transfer. The present results might be applicable to modelling the complex interplay of $[{\rm{C}}\,{\rm{II}}]$ (or ${{\rm{C}}}^{+}$), ${\rm{C}}$, and $\mathrm{CO}$ at the boundaries of interstellar photon dominated regions and in x-ray dominated regions, where the abundance of ${\mathrm{He}}^{+}$ affects the abundance of $\mathrm{CO}$.},
doi = {10.1088/1361-6455/aa54f4},
journal = {Journal of Physics. B, Atomic, Molecular and Optical Physics},
number = 4,
volume = 50,
place = {United States},
year = {Tue Jan 24 00:00:00 EST 2017},
month = {Tue Jan 24 00:00:00 EST 2017}
}
Web of Science
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Works referencing / citing this record:
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