Improved low-temperature rate constants for rotational excitation of CO by H2

被引：0

作者：

Wernli, M. ^{[1
]}

Valiron, P. ^{[1
]}

Faure, A. ^{[1
]}

Wiesenfeld, L. ^{[1
]}

Jankowski, P. ^{[2
]}

Szalewicz, K. ^{[3
]}

机构：

[1] Laboratoire d'Astrophysique de Grenoble, UMR 5571 CNRS-UJF, Université Joseph Fourier, BP 53, 38041 Grenoble Cedex 9, France

[2] Department of Quantum Chemistry, Institute of Chemistry, Nicholaus Copernicus University, Gagarina 7, 87-100 Toruń, Poland

[3] Department of Physics and Astronomy, University of Delaware, Newark, DE 19716, United States

来源：

Astronomy and Astrophysics | 1600年 / 446卷 / 01期

关键词：

Cross sections for the rotational (de)excitation of CO by ground state para- and ortho-H2 are obtained using quantum scattering calculations for collision energies between 1 and 520 cm-1. A new CO-H2 potential energy surface is employed and its quality is assessed by comparison with explicitly correlated CCSD(T)-R12 calculations. Rate constants for rotational levels of CO up to 5 and temperatures in the range 5-70 K are deduced. The new potential is found to have a strong influence on the resonance structure of the cross sections at very low collision energies. As a result; the present rates at 10 K differ by up to 50% with those obtained by Flower (2001) on a previous; less accurate; potential energy surface. © ESO 2006;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Journal article (JA)

引用

页码：367 / 372

共 50 条

[1] Improved low-temperature rate constants for rotational excitation of CO by H2
Wernli, M
Valiron, P
Faure, A
Wiesenfeld, L
Jankowski, P
Szalewicz, K
ASTRONOMY & ASTROPHYSICS, 2006, 446 (01) : 367 - U35
[2] The rotational excitation of CO by H2
Flower, DR
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2001, 34 (13) : 2731 - 2738
[3] Toward improved catalytic low-temperature CO removal in H2 rich streams
Saavedra, Johnny
Pursell, Christopher
Chandler, Bert
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2015, 249
[4] The rotational excitation of H2 by H2
Flower, DR
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1998, 297 (01) : 334 - 336
[5] Low-Temperature Experimental and Theoretical Rate Constants for the O(1D) + H2 Reaction
Hickson, Kevin M.
Suleimanov, Yury V.
JOURNAL OF PHYSICAL CHEMISTRY A, 2017, 121 (09): : 1916 - 1923
[6] ROTATIONAL EXCITATION OF (H, H2) SYSTEM
TANG, KT
PHYSICAL REVIEW, 1969, 187 (01): : 122 - &
[7] THEORY OF H2 ROTATIONAL EXCITATION
SPITZER, L
ZWEIBEL, EG
ASTROPHYSICAL JOURNAL, 1974, (03): : L127 - L130
[8] ROTATIONAL EXCITATION OF INTERSTELLAR H2
SPITZER, L
COCHRAN, WD
ASTROPHYSICAL JOURNAL, 1973, 186 (01): : L23 - L28
[9] Hyperfine excitation of HCN by H2 at low temperature
Ben Abdallah, D.
Najar, F.
Jaidane, N.
Dumouchel, F.
Lique, F.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2012, 419 (03) : 2441 - 2447
[10] Low-temperature rate constants and radiative transfer for rotational de-excitation of C5S by collision with He
Khadri, F.
Chefai, A.
Hammami, K.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2020, 498 (04) : 5159 - 5165

← 1 2 3 4 5 →