Theoretical study of the collision-induced fundamental absorption spectra of O2–O2 pairs for temperatures between 193 and 273K

Moreau, G.; Boissoles, J.; Boulet, C.; Tipping, R. H.; Ma, Q.

doi:10.1016/s0022-4073(98)00141-1

Cited by 24 publications

(14 citation statements)

References 34 publications

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“…We note that in the fundamental band of molecular oxygen, the CIA spectrum does show structure, reminiscent of rotational structure. 34 A later paper showed, by using theoretical calculations, that the structure is due to metastable dimers. 35 However, the equilibrium density of dimers is expected to be quadratic in density.…”

Section: Voigt Lines Including Line Mixingmentioning

confidence: 99%

Line mixing and collision induced absorption in the oxygen A-band using cavity ring-down spectroscopy

Spiering¹,

Kiseleva

Filippov

et al. 2010

The Journal of Chemical Physics

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This paper reports on the absorption of molecular oxygen in the region of the A-band near 760 nm under atmospheric conditions relevant for satellite retrieval studies. We use pulsed laser cavity ring-down spectroscopy with a narrow bandwidth laser and use pressure scans to increase the accuracy of the measured oxygen extinction coefficients. Absolute binary absorption coefficients in minima between absorption lines of the A-band spectrum have been measured and tabulated. We use the so-called adjustable branch coupling model including line mixing to calculate the magnetic dipole absorption in order to determine the contribution of collision induced absorption. The line mixing model has been optimized such that the collision induced absorption spectrum is smooth.

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Section: Voigt Lines Including Line Mixingmentioning

confidence: 99%

Line mixing and collision induced absorption in the oxygen A-band using cavity ring-down spectroscopy

Spiering¹,

Kiseleva

Filippov

et al. 2010

The Journal of Chemical Physics

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“…They are: H2-He, H2 (Michaut et al 1998), 12 CH 3 D-He, H 2 , N 2 (Boussin et al 1999), H 2 S-He, H 2 , N 2 , 0 2 (Flatin et al 1999), CO-He, Ar (Sinclair et al 1998), C0 2 -He, Ar, C 0 2 , N 2 , 0 2 (Rodrigues et al 1998, Vigasin 1999, Ma et al 1999, De Rosa et al 1999, N 2 -N 2 (Buldyreva et al 1999), NH 3 -H2,NH 3 (Irwin et al 1999, Birnbaum et al 2000, N 2 0 -He, N 2 , l e 0 2 -1 6 0 2 (Schermaul k Learner 1999), 1 Collision Induced Spectra Collision-induced absorption in dense atmospheres of cool stars has been reviewed by Borysow and Jorgensen (1999). Recent publications include studies of far-infrared bands of H 2 , C0 2 , O2 and liquid methane (Brodbeck et al 1999, Gruszka k Borysow 1999, Moreau et al 2000, Birnbaum et al 1999, and of the fundamental band of CO broadened by N 2 (Luo et al 1999).…”

Section: Broadening Of Molecular Linesmentioning

confidence: 99%

Commission 14: Atomic and Molecular Data: (Donnees Atomiques et Moleculaires)

Rostas¹,

Smith²,

Berrington³

et al. 2000

Trans. Int. Astron. Union

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In recognition of its special interdisciplinary character, IAU Commission 14 is linked directly to the Executive Committee. The Commission’s role is to inform the astronomical community of new developments in the diverse fields of research which involve atoms and molecules. Conversely it endeavors to sensitize the research community active in those fields to the specific needs of astronomy, especially concerning basic data and modeling tools. More generally, Commission 14 tries to foster long term relations and collaborations between the two communities and, when necessary, to alert funding authorities to the specific needs of ground and space based astronomy for specific atomic and molecular data. This report is one of the main contributions of Commission 14 to the information of the astronomical community. Several meetings concerned, at least in part, with the need and availability of atomic and molecular data for astrophysics were also sponsored or co-sponsored. In the last triennium, Commission 14 cosponsored IAU Symposium 194 “Astrochemistry: From Molecular Cloud to Planetary Systems” held in Sogwipo (Korea) from Aug. 23 to 27, 1999 and organized by Commission 34. A Joint Discussion: JD1 on “Atomic and Molecular Data for Astrophysics, New Developments, Case Studies and Future Needs” has been planned for the XXIVth IAU General Assembly in Manchester (Aug. 7-19, 2000) and cosponsored by Commissions 15, 16, 29, 34, 36, 40 and 44. Several other Joint Discussions to be held at the Manchester General Assembly are co-sponsored by this commission.

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“…In particular, several studies have focused on the collision-induced fundamental absorptions in H 2 , N 2 , and O 2 pairs (3)(4)(5)(6)(7)(8), where there is a weak continuum absorption due to transient dipoles that are induced during the binary collision. On the other hand, there are so-called simultaneous or doublevibrational collision-induced transitions, where one molecule makes an allowed dipole transition combined with a transition induced in the partner species by the transient dipole moment, i.e., dipole-induced dipole.…”

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confidence: 99%

“…There are errors inherent in neglecting the anisotropic nature of the interaction potential. However, in order to utilize the theory as presented here, and as utilized in other determinations of collision-induced absorption (3)(4)(5)10), where the line contributions are additive, this approximation must be made.…”

mentioning

confidence: 99%

“…The band profiles are a function of the lineshapes of the individual contributing lines. Starting from the initial BC lineshape parameters (4,7,8), the linewidth was varied until the full width at half-maximum of the theoretical band profile was the same as those determined experimentally. In each case, only the BC parameter 1 was varied, while the parameter 2 was maintained at its value for the X 2 -X 2 interaction, i.e., 3.03 ϫ 10 Ϫ14 s for H 2 , 1.33 ϫ 10 Ϫ13 s for N 2 , and 1.33 ϫ 10 Ϫ13 s for O 2 .…”

mentioning

confidence: 99%

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Theoretical Study of Collision-Induced Double Transitions in CO2-X2 (X2 = H2, N2, and O2) Pairs

Brown

Tipping

2001

Journal of Molecular Spectroscopy

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Theoretical study of the collision-induced fundamental absorption spectra of O2–O2 pairs for temperatures between 193 and 273K

Cited by 24 publications

References 34 publications

Line mixing and collision induced absorption in the oxygen A-band using cavity ring-down spectroscopy

Line mixing and collision induced absorption in the oxygen A-band using cavity ring-down spectroscopy

Commission 14: Atomic and Molecular Data: (Donnees Atomiques et Moleculaires)

Theoretical Study of Collision-Induced Double Transitions in CO2-X2 (X2 = H2, N2, and O2) Pairs

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