State-resolved Photodissociation and Radiative Association Data for the Molecular Hydrogen Ion
We present state-resolved (electronic, vibrational, and rotational) cross sections and rate coefficients for the photodissociation (PD) of H 2 + and radiative association (RA) of H-H + . We developed a fully quantum mechanical approach within the nonrelativistic Born-Oppenheimer approximation to des...
| Main Authors: | , , , , , , , , |
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| Format: | Journal Article |
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Institute of Physics Publishing
2017
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| Online Access: | http://hdl.handle.net/20.500.11937/60527 |
| _version_ | 1848760613142003712 |
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| author | Zammit, M. Savage, J. Colgan, J. Fursa, Dmitry Kilcrease, D. Bray, Igor Fontes, C. Hakel, P. Timmermans, E. |
| author_facet | Zammit, M. Savage, J. Colgan, J. Fursa, Dmitry Kilcrease, D. Bray, Igor Fontes, C. Hakel, P. Timmermans, E. |
| author_sort | Zammit, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We present state-resolved (electronic, vibrational, and rotational) cross sections and rate coefficients for the photodissociation (PD) of H 2 + and radiative association (RA) of H-H + . We developed a fully quantum mechanical approach within the nonrelativistic Born-Oppenheimer approximation to describe H 2 + and calculate the data for transitions between the ground electronic state 1ss g and the 2ps u , 2pp u , 3ps u , 3pp u , 4ps u , 4fs u , 4fp u , and 4pp u electronic states (i.e., up to H 2 + n = 4). Tables of the dipole-matrix elements and energies needed to calculate stateresolved cross sections and rate coefficients will be made publicly available. These data could be important in astrophysical models when dealing with photon wavelengths (or radiation temperature distributions that are weighted toward such wavelengths) around 100 nm. For example, at these wavelengths and a material temperature of 8400 K, the LTE-averaged PD cross section via the (second electronically excited) 2pp u state is over three times larger than the PD cross section via the (first electronically excited) 2ps u state. |
| first_indexed | 2025-11-14T10:18:33Z |
| format | Journal Article |
| id | curtin-20.500.11937-60527 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:18:33Z |
| publishDate | 2017 |
| publisher | Institute of Physics Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-605272018-04-16T02:00:39Z State-resolved Photodissociation and Radiative Association Data for the Molecular Hydrogen Ion Zammit, M. Savage, J. Colgan, J. Fursa, Dmitry Kilcrease, D. Bray, Igor Fontes, C. Hakel, P. Timmermans, E. We present state-resolved (electronic, vibrational, and rotational) cross sections and rate coefficients for the photodissociation (PD) of H 2 + and radiative association (RA) of H-H + . We developed a fully quantum mechanical approach within the nonrelativistic Born-Oppenheimer approximation to describe H 2 + and calculate the data for transitions between the ground electronic state 1ss g and the 2ps u , 2pp u , 3ps u , 3pp u , 4ps u , 4fs u , 4fp u , and 4pp u electronic states (i.e., up to H 2 + n = 4). Tables of the dipole-matrix elements and energies needed to calculate stateresolved cross sections and rate coefficients will be made publicly available. These data could be important in astrophysical models when dealing with photon wavelengths (or radiation temperature distributions that are weighted toward such wavelengths) around 100 nm. For example, at these wavelengths and a material temperature of 8400 K, the LTE-averaged PD cross section via the (second electronically excited) 2pp u state is over three times larger than the PD cross section via the (first electronically excited) 2ps u state. 2017 Journal Article http://hdl.handle.net/20.500.11937/60527 10.3847/1538-4357/aa9712 Institute of Physics Publishing fulltext |
| spellingShingle | Zammit, M. Savage, J. Colgan, J. Fursa, Dmitry Kilcrease, D. Bray, Igor Fontes, C. Hakel, P. Timmermans, E. State-resolved Photodissociation and Radiative Association Data for the Molecular Hydrogen Ion |
| title | State-resolved Photodissociation and Radiative Association Data for the Molecular Hydrogen Ion |
| title_full | State-resolved Photodissociation and Radiative Association Data for the Molecular Hydrogen Ion |
| title_fullStr | State-resolved Photodissociation and Radiative Association Data for the Molecular Hydrogen Ion |
| title_full_unstemmed | State-resolved Photodissociation and Radiative Association Data for the Molecular Hydrogen Ion |
| title_short | State-resolved Photodissociation and Radiative Association Data for the Molecular Hydrogen Ion |
| title_sort | state-resolved photodissociation and radiative association data for the molecular hydrogen ion |
| url | http://hdl.handle.net/20.500.11937/60527 |