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Title: Rotational excitation of the interstellar NH 2 radical by H 2

Abstract

We present quantum close-coupling calculations for the rotational excitation of the interstellar amidogen radical NH 2 due to collisions with H 2 molecules. The calculations are based on a recent, high-accuracy full-dimensional NH 4 potential energy surface adapted for rigid-rotor scattering calculations. The collisional cross section calculations are performed for all transitions among the first 15 energy levels of both ortho- and para-NH 2 and for total energies up to 1500 cm -1. Both para- and ortho-H 2 colliding partners are considered. The cross sections for collision with para- and ortho-H 2 are found to differ significantly, the magnitude of the ortho-H 2 ones being dominant. No strong propensity rules are observed but transitions with Δk c=0 are slightly favored

Authors:
ORCiD logo [1]; ORCiD logo [1];  [2];  [2];  [3]; ORCiD logo [3]
  1. CNRS-Univ. du Havre, Le Havre (France)
  2. Inst. de Planétologie et d’Astrophysique de Grenoble (IPAG), Grenoble (France)
  3. Univ. of New Mexico, Albuquerque, NM (United States)
Publication Date:
Research Org.:
Univ. of New Mexico, Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1465745
Alternate Identifier(s):
OSTI ID: 1361765
Grant/Contract Number:  
SC0015997
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Chemical Physics
Additional Journal Information:
Journal Volume: 146; Journal Issue: 6; Journal ID: ISSN 0021-9606
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS

Citation Formats

Bouhafs, Nezha, Lique, François, Faure, Alexandre, Bacmann, Aurore, Li, Jun, and Guo, Hua. Rotational excitation of the interstellar NH2 radical by H2. United States: N. p., 2017. Web. doi:10.1063/1.4975324.
Bouhafs, Nezha, Lique, François, Faure, Alexandre, Bacmann, Aurore, Li, Jun, & Guo, Hua. Rotational excitation of the interstellar NH2 radical by H2. United States. doi:10.1063/1.4975324.
Bouhafs, Nezha, Lique, François, Faure, Alexandre, Bacmann, Aurore, Li, Jun, and Guo, Hua. Tue . "Rotational excitation of the interstellar NH2 radical by H2". United States. doi:10.1063/1.4975324. https://www.osti.gov/servlets/purl/1465745.
@article{osti_1465745,
title = {Rotational excitation of the interstellar NH2 radical by H2},
author = {Bouhafs, Nezha and Lique, François and Faure, Alexandre and Bacmann, Aurore and Li, Jun and Guo, Hua},
abstractNote = {We present quantum close-coupling calculations for the rotational excitation of the interstellar amidogen radical NH2 due to collisions with H2 molecules. The calculations are based on a recent, high-accuracy full-dimensional NH4 potential energy surface adapted for rigid-rotor scattering calculations. The collisional cross section calculations are performed for all transitions among the first 15 energy levels of both ortho- and para-NH2 and for total energies up to 1500 cm-1. Both para- and ortho-H2 colliding partners are considered. The cross sections for collision with para- and ortho-H2 are found to differ significantly, the magnitude of the ortho-H2 ones being dominant. No strong propensity rules are observed but transitions with Δkc=0 are slightly favored},
doi = {10.1063/1.4975324},
journal = {Journal of Chemical Physics},
number = 6,
volume = 146,
place = {United States},
year = {Tue Feb 14 00:00:00 EST 2017},
month = {Tue Feb 14 00:00:00 EST 2017}
}

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Cited by: 3 works
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