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| Titel: |
Absolute line wavenumbers in the near infrared: 12C2H2 and 12C16O2 |
| Auteur: |
VANDER AUWERA, J. HACHTOUKI, R.EL BROWN, L.R. |
| Verschenen in: |
Molecular physics |
| Paginering: | Jaargang 100 (2002) nr. 22 pagina's 3563-3576 |
| Jaar: |
2002-11-20 |
| Inhoud: |
40 absolute line wavenumbers in the 3v3 band of 12C16O2 between 6927 cm-1 and 6989 cm-1 and 626 absolute line wavenumbers in the near infrared absorption spectrum of 12C2H2 between 7060 cm-1 and 9900 cm-1 have been measured using high resolution Fourier transform spectroscopy. The calibration of the CO2 line wavenumbers relied on heterodyne frequencies available in the v1 + v3 band of 12C2H2 near 6556 cm-1. The absolute uncertainty of the calibrated CO2 line wavenumbers is estimated to 0.000 08 cm-1. The acetylene spectra were calibrated using heterodyne frequencies available in the 2—0 band of 12C16O and the line wavenumbers obtained in the 3v3 band of 12C16O2. The absolute uncertainty of the calibrated acetylene line wavenumbers is estimated to range from 0.0003 cm-1 to 0.006 cm-1 for strong to very weak isolated lines. Comparison with absolute line wavenumbers obtained independently at JPL in the 3v3 band of 12C2H2 near 9649 cm-1, calibrated using absolute wavenumbers available in the 2—0 and 3—0 (near 6350 cm-1) bands of 12C16O, shows very good agreement. Also, the vibration—rotation constants for the observed upper vibrational states of 12C2H2 were determined, but without accounting for the perturbations affecting these states. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 1 van 43 gevonden artikelen
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