H{sub 2} AND HD DIRECT PHOTODISSOCIATION IN THE CHEMISTRY OF THE PRIMORDIAL UNIVERSE
Abstract
In this work, we calculate the thermal contribution to the rate coefficients for the processes of photodissociation of H{sub 2} and HD molecules. A comparison between direct and indirect rate coefficients is reported for molecular hydrogen. The rate coefficients are calculated including all vibrational levels of both molecules. Interpolation expressions for all processes are provided as a function of temperature. The resulting total rates for these processes are contextualized by direct numerical calculations based on a standard chemical network for the primordial universe.
- Authors:
-
- Department of Chemistry, University of Bari, Via Orabona 4, 70126 Bari (Italy)
- Publication Date:
- OSTI Identifier:
- 21567613
- Resource Type:
- Journal Article
- Journal Name:
- Astrophysical Journal
- Additional Journal Information:
- Journal Volume: 727; Journal Issue: 1; Other Information: DOI: 10.1088/0004-637X/727/1/37; Journal ID: ISSN 0004-637X
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; HYDROGEN; MOLECULES; PHOTOLYSIS; TEMPERATURE DEPENDENCE; UNIVERSE; CHEMICAL REACTIONS; DECOMPOSITION; ELEMENTS; NONMETALS; PHOTOCHEMICAL REACTIONS
Citation Formats
Coppola, Carla M, Diomede, Paola, Longo, Savino, and Capitelli, Mario. H{sub 2} AND HD DIRECT PHOTODISSOCIATION IN THE CHEMISTRY OF THE PRIMORDIAL UNIVERSE. United States: N. p., 2011.
Web. doi:10.1088/0004-637X/727/1/37.
Coppola, Carla M, Diomede, Paola, Longo, Savino, & Capitelli, Mario. H{sub 2} AND HD DIRECT PHOTODISSOCIATION IN THE CHEMISTRY OF THE PRIMORDIAL UNIVERSE. United States. https://doi.org/10.1088/0004-637X/727/1/37
Coppola, Carla M, Diomede, Paola, Longo, Savino, and Capitelli, Mario. 2011.
"H{sub 2} AND HD DIRECT PHOTODISSOCIATION IN THE CHEMISTRY OF THE PRIMORDIAL UNIVERSE". United States. https://doi.org/10.1088/0004-637X/727/1/37.
@article{osti_21567613,
title = {H{sub 2} AND HD DIRECT PHOTODISSOCIATION IN THE CHEMISTRY OF THE PRIMORDIAL UNIVERSE},
author = {Coppola, Carla M and Diomede, Paola and Longo, Savino and Capitelli, Mario},
abstractNote = {In this work, we calculate the thermal contribution to the rate coefficients for the processes of photodissociation of H{sub 2} and HD molecules. A comparison between direct and indirect rate coefficients is reported for molecular hydrogen. The rate coefficients are calculated including all vibrational levels of both molecules. Interpolation expressions for all processes are provided as a function of temperature. The resulting total rates for these processes are contextualized by direct numerical calculations based on a standard chemical network for the primordial universe.},
doi = {10.1088/0004-637X/727/1/37},
url = {https://www.osti.gov/biblio/21567613},
journal = {Astrophysical Journal},
issn = {0004-637X},
number = 1,
volume = 727,
place = {United States},
year = {Thu Jan 20 00:00:00 EST 2011},
month = {Thu Jan 20 00:00:00 EST 2011}
}
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