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LINE INTENSITIES MEASUREMENTS IN $^{13}$C$^{16}$O$_2$ AND THEIR TREATMENT USING THE EFFECTIVE OPERATORS APPROACH

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/30556

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Title: LINE INTENSITIES MEASUREMENTS IN $^{13}$C$^{16}$O$_2$ AND THEIR TREATMENT USING THE EFFECTIVE OPERATORS APPROACH
Creators: Perevalov, V. I.; Tashkun, S. A.; Claveau, C.; Teffo, J.- L.; Auwera, J. Vander
Issue Date: 2005
Abstract: This work deals with the modeling of line intensities of cold and hot bands of $^{13}$C$^{16}$O$_2$ corresponding to $\Delta P=5$ transitions ($P = 2V_1 + V_2 + 3V_3$), using the effective operators approach.}, 785--801 (1998); J.-L. Teffo, O.M. Lyulin, V.I. Perevalov, and E.I. Lobodenko, J. Mol. Spectrosc. \underline{187}, 28--41 (1998).} In Brussels, 5 unapodized absorption spectra of $^{13}$C$^{16}$O$_2$ (98\% purity, $P \times \ell = 7.43-538$ mbar$\times$m, room temperature) were recorded at a resolution of $0.0035$ cm$^{-1}$ (MOPD $= 257.1$ cm) using a Bruker IFS120HR. $382$ absolute line intensities were measured in 9 bands observed between $3090$ and $3920$ cm$^{-1}$. In Paris, 2 apodized absorption spectra of an $^{18}$O--enriched CO$_2$ sample (297.0 K, $\ell =$ 8.07(2) and 36.07(4) m, $P$ = 1.685(8) torr) containing 0.5\% of $^{13}$C$^{16}$O$_2$ were recorded at a resolution of 0.0043 cm$^{-1}$ using a home--made FTS. 90 absolute line intensities were measured for 5 bands observed from 3400 to 3700 cm$^{-1}$. A least squares fit of 479 observed line intensities, including those measured in this work and published for the 21102-00001 band,}, 146--160 (2004).} allowed determination of 12 effective dipole moment parameters corresponding to the $\Delta P = 5$ series of transitions (weighted standard deviation $\chi$ = 0.855, RMS deviation = 4.69\%). The new set of effective dipole moment parameters will soon be used to update the \emph{Carbon Dioxide Spectroscopic Databank} (CDSD--1000).}, 165--196 (2003); http://cdsd.iao.ru, http://cdsd.lpma.jussieu.fr, ftp://ftp.iao.ru/pub/CDSD-1000.} Results will be presented and discussed.
URI: http://hdl.handle.net/1811/30556
Other Identifiers: 2005-TE-01
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