Theoretical and laboratory spectra of sodium perturbed by molecular hydrogen
Theoretical and laboratory spectra of sodium perturbed by molecular hydrogen
复制标题
氢分子扰动钠的理论和实验室光谱
DOI:
10.1051/0004-6361/201219037
复制
发表时间:
2012
影响因子:
6.5
通讯作者:
Allard N
中科院分区:
文献类型:
--
作者:
Allard N
We present new unified theory line profiles of neutral Na perturbed by H2. We used a priori Na–H2potentials, transition dipole moments and validated pseudo-potentials as input to the line shape, and evaluated the profiles for temperatures and densities appropriate for modeling exoplanet and brown dwarf atmospheres. The theory for the resonance lines was compared with new laboratory spectra of sodium to test the validity of the potentials and resulting profiles. The Lorentzian function commonly used to approximate a collisional line profile in radiative transfer calculations is shown to be inadequate, except within a few halfwidths of the line center. In the far wing, the opacity caused by collisions may be several orders of magnitude greater than the extrapolation of the Lorentzian core.
登录
查看更多内容
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
A. Jensen;S. Redfield;M. Endl;W. Cochran;L. Koesterke;T. Barman
通讯作者:
T. Barman
DOI:
10.1103/physreva.32.2657
发表时间:
1985
期刊:
Physical review. A, General physics
影响因子:
--
作者:
Rossi;Pascale
通讯作者:
Pascale
影响因子:
64.8
作者:
M. Swain;P. Deroo;C. Griffith;G. Tinetti;A. Thatte;G. Vasisht;Pin Chen;J. Bouwman;I. Crossfield;D. Angerhausen;C. Afonso;T. Henning
通讯作者:
T. Henning
DOI:
10.1088/0953-4075/41/17/175102
发表时间:
2008
期刊:
Journal of Physics B: Atomic, Molecular and Optical Physics
影响因子:
--
作者:
K. Alioua;M. Bouledroua;A. Allouche;M. Aubert
通讯作者:
M. Aubert
DOI:
10.1088/0022-3700/13/19/019
发表时间:
1980
期刊:
Journal of Physics B
影响因子:
--
作者:
J. Kielkopf
通讯作者:
J. Kielkopf