VUV-synchrotron absorption studies of N2 and CO at 900K

Niu, Mei; Heays, A. N.; Jones, Scott C.; Salumbides, E. J.; Dishoeck, E. F. van; Oliveira, N. de; Nahon, Laurent; Ubachs, Wim

doi:10.1016/j.jms.2015.02.011

Cited by 10 publications

(12 citation statements)

References 134 publications

(262 reference statements)

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“…Its operation and performance have already been described in detail [42,43] as well as its application for the measurement of CO spectra [24,27,44] cell (900 K) [45]. Doppler-broadening of the observed spectral lines increases at higher temperatures and limits the accuracy of line-center measurements.…”

Section: Fourier-transform Absorption In the Vacuum Ultraviolet (Vuv-ft)mentioning

confidence: 99%

Perturbations in the A¹Π,v= 0 state of¹²C¹⁸O investigated via complementary spectroscopic techniques

et al. 2017

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Section: Fourier-transform Absorption In the Vacuum Ultraviolet (Vuv-ft)mentioning

confidence: 99%

Perturbations in the A¹Π,v= 0 state of¹²C¹⁸O investigated via complementary spectroscopic techniques

et al. 2017

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“…A number of improvements are foreseen for SESAM, resulting from the recent achievements obtained in theoretical studies of the various corrections (non-adiabatic, relativistic, radiative) introduced in the H 2 , HD and D 2 potential curves [32] as well as the amazing spectral resolution of electronic spectra obtained thanks to vacuum-ultraviolet Fourier transform spectrometers put in front of synchrotron radiation sources [33,34]. Whereas previous data remain useful, it is time to redistribute the data while taking into account recent work.…”

Section: Sesammentioning

confidence: 99%

The Spectroscopic Atomic and Molecular Databases at the Paris Observatory

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Dimitrijević

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et al. 2020

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This paper is intended to give a comprehensive overview of the the current status and developments of the Paris Observatory STARK-B, MOLAT and SESAM databases which can be interrogated thanks to interoperability tools. The STARK-B database provides shifting and broadening parameters of different atomic and ionic transitions due to impacts with charged particles (the so-called Stark broadening) for different temperatures and densities. The spectroscopic MOLAT and SESAM databases provide the wavelengths, the oscillator strengths or Einstein spontaneous emission coefficients of H 2 , CO and isotopologues molecules.

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“…A spectrum of B 1 Σ + −X 1 Σ + (0, 0) was recorded with the FT-VUV setup at SOLEIL while 13 C 18 O flowed through a windowless cell heated to approximately 1000 K [39]. The column density for this measurement was approximately 7 × 10 15 cm −2 and overlapping B 1 Σ + − X 1 Σ + (0, 0) absorption from the 12 C 16 O, 13 Tables 9 and 17, respectively.…”

Section: Ft-vuv B ← X Systemmentioning

confidence: 99%

Precision spectroscopy and comprehensive analysis of perturbations in the A¹∏(v= 0) state of¹³C¹⁸O

et al. 2018

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We have reinvestigated the A 1 Π(v = 0) level of 13 C 18 O using new high-resolution spectra obtained via multi-photon laser excitation as well as with synchrotron-based Fourier-transform absorption spectroscopy of the A 1 Π − X 1 Σ + (0, 0), e 3 Σ − − X 1 Σ + (1, 0), d 3 ∆ − X 1 Σ + (4, 0), a 3 Σ + − X 1 Σ + (9, 0), and a 3 Π − X 1 Σ + (11, 0) bands. In addition, Fourier-transform emission spectroscopy in the visible range is performed on the B 1 Σ + − A 1 Π(0, 0) band. Spectra of the B 1 Σ + − X 1 Σ + (0, 0) band are measured in order to tie information from the latter emission data to the level structure of A 1 Π(v = 0). The high pressures in the absorption cell at the synchrotron and the high temperatures in the emission discharge permitted monitoring of high rotational quantum levels in A 1 Π(v = 0) up to J = 43. All information, in total over 900 spectral lines, was included in an effective-Hamiltonian analysis of the A 1 Π(v = 0, J) levels that are directly perturbed by the e 3 Σ − (v = 1), d 3 ∆(v = 4), a 3 Σ + (v = 9), D 1 ∆(v = 0), I 1 Σ − (v = 0, 1) close-lying levels and the e 3 Σ − (v = 0, 2), d 3 ∆(v = 3, 5), a 3 Σ + (v = 8, 10) remote levels, as well being indirectly influenced by the a 3 Π(v = 10, 11) state. The influence of nine further perturber levels and their interactions was investigated and are not significant for reproducing the present experimental data. This analysis leads to a much improved description in terms of molecular constants and interaction parameters, compared to previous studies of the same energy region for other CO isotopologues.

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VUV-synchrotron absorption studies of N2 and CO at 900K

Cited by 10 publications

References 134 publications

Perturbations in the A¹Π,v= 0 state of¹²C¹⁸O investigated via complementary spectroscopic techniques

Perturbations in the A¹Π,v= 0 state of¹²C¹⁸O investigated via complementary spectroscopic techniques

The Spectroscopic Atomic and Molecular Databases at the Paris Observatory

Precision spectroscopy and comprehensive analysis of perturbations in the A¹∏(v= 0) state of¹³C¹⁸O

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VUV-synchrotron absorption studies of N2 and CO at 900K

Cited by 10 publications

References 134 publications

Perturbations in the A1Π,v= 0 state of12C18O investigated via complementary spectroscopic techniques

Perturbations in the A1Π,v= 0 state of12C18O investigated via complementary spectroscopic techniques

The Spectroscopic Atomic and Molecular Databases at the Paris Observatory

Precision spectroscopy and comprehensive analysis of perturbations in the A1∏(v= 0) state of13C18O

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Perturbations in the A¹Π,v= 0 state of¹²C¹⁸O investigated via complementary spectroscopic techniques

Perturbations in the A¹Π,v= 0 state of¹²C¹⁸O investigated via complementary spectroscopic techniques

Precision spectroscopy and comprehensive analysis of perturbations in the A¹∏(v= 0) state of¹³C¹⁸O