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This paper describes the status of the 2008 edition of the HITRAN molecular spectroscopic database. The new edition is the first official public release since the 2004 edition, although a number of crucial updates had been made available online since 2004. The HITRAN compilation consists of several components that serve as input for radiative-transfer(More)
In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding Elsevier's archiving and manuscript policies are encouraged to visit: Keywords: GEISA Spectroscopic database Molecular spectroscopy Line parameters(More)
  • D Jacquemart, F Kwabia Tchana, N Lacome, I Kleiner
  • 2012
Using FT spectra (Bruker IFS 120, unapodized FWHM resolution ≈ 0.001 cm −1) of methyl bromide CH 3 Br, absolute line positions and intensities, as well as self-and N 2-broadening coefficients have been measured for about 1200 lines, between 880 and 1050 cm −1 , in the 6 ν band of both 12 CH 3 79 Br and 12 CH 3 81 Br isotopologues. An absolute wavenumber(More)
We present a first implementation of optical-frequency-comb-based rapid trace gas detection in the molecular fingerprint region in the mid-infrared. Near-real-time acquisition of broadband absorption spectra with 0.0056 cm 1 maximum resolution is demonstrated using a frequency comb Fourier transform spectrometer which operates in the 2100-to-3700-cm 1(More)
The 6.7 and 12.2 GHz masers, corresponding to the 5(1) → 6(0)A+ and 2(0) → 3(-1)E transitions in methanol (CH3OH), respectively, are among the brightest radio objects in the sky. We present calculations for the sensitivity of these and other transitions in the ground state of methanol to a variation of the proton-to-electron mass ratio. We show that the(More)
In order to model the high-resolution infrared spectrum of the phosphine molecule in the 3 µm region, a global approach involving the lower three polyads of the molecule (Dyad, Pentad and Octad) as been applied using an eective hamiltonian in the form of irreducible tensors. This model allowed to describe all the 15 vibrational states involved and to(More)
The data incorporated in the HITRAN database for 14 NH 3 are analyzed using a comprehensive and consistent set of quantum numbers, empirical lower energy levels and the BYTe variationally calculated line list as reference points. Labelings are checked to ensure that they obey both the usual selection rules and the HITRAN labeling formalisms; the problems(More)
Torsion-rotation transitions in molecules exhibiting hindered internal rotation possess enhanced sensitivities to a variation of the proton-to-electron mass ratio. This enhancement occurs due to a cancellation of energies associated with the torsional and rotational degrees of freedom of the molecule. This effect occurs generally in every internal rotor(More)
  • F Kwabia Tchana, D Jacquemart, N Lacome, I Kleiner, J Orphal, Fridolin Kwabia Tchana
  • 2012
This work deals, for the first time, with the modeling of absolute line intensities in the fundamental ν 2 and ν 5 bands of CH 3 79 Br and CH 3 81 Br at 7 µm. For that, four unapodized absorption spectra of CH 3 Br (natural abundance, 99% purity, P×L = 0.082–0.165 atm×cm, room temperature) were measured in the range 1260–1560 cm-1 , at a resolution of 0.002(More)