Knowledge Bank

Room temperature absorption spectra of $\mathrm{<mrow\; data-mjx-texclass="ORD">17</mrow>}O$-enriched ozone have been recorded around 10 $\mu$m at $0.005cm-1$ resolution with the Fourier transform spectrometer located in the McMath solar telescope on Kitt Peak. Using these data, the first analysis of the $v3$ (A-type) and $v1$ (B-type) bands of $\mathrm{<mrow\; data-mjx-texclass="ORD">16</mrow>}O17O18O$ together with the hybrid (both A- and B- type) $v3$ and $v1$ bands of $\mathrm{<mrow\; data-mjx-texclass="ORD">17</mrow>}O16O18O$ isotopic species of ozone was performed, leading to the following band centers $v0(v1)=1095.69309cm-1$ $v0(v3)-1035.35869cm-1$ and $v0(v1)-1087,82895cm-1$, $v0(v3)-1024.39553cm-1$ respectively for the $\mathrm{<mrow\; data-mjx-texclass="ORD">16</mrow>}O17O18O$ and $\mathrm{<mrow\; data-mjx-texclass="ORD">17</mrow>}O16O16O$ isotopic species. The experimental rotational energy levels of the [(100) (001)] interacting vibrational states were very satisfactorily reproduced using a Hamilton matrix which takes explicity into account the Coriolis interactions for the $\mathrm{<mrow\; data-mjx-texclass="ORD">17</mrow>}O18O$ ($C2v$ -symmetry) and both formi- and coriolis-type interactions for $\mathrm{<mrow\; data-mjx-texclass="ORD">17</mrow>}O$ $\mathrm{<mrow\; data-mjx-texclass="ORD">17</mrow>}O16O16O$ ($C2$ - symmetry). For the $\mathrm{<mrow\; data-mjx-texclass="ORD">16</mrow>}O17O16O$ isotopic species the line intensities were calculated by transferring the dipole moment function of $\mathrm{<mrow\; data-mjx-texclass="ORD">16</mrow>}O3$ to $\mathrm{<mrow\; data-mjx-texclass="ORD">16</mrow>}O17O16O$. These intensities were then used to determine the amount of $\mathrm{<mrow\; data-mjx-texclass="ORD">16</mrow>}O17O16O$ in the cell and, assuming a factor of 2 between the abundances of $\mathrm{<mrow\; data-mjx-texclass="ORD">17</mrow>}O16O16O$ and $\mathrm{<mrow\; data-mjx-texclass="ORD">16</mrow>}O17O16O$, the amount of $\mathrm{<mrow\; data-mjx-texclass="ORD">17</mrow>}O16O16O$ was evaluated allowing the measurement of 70 line intensities of the $v1$ and $v3$ band lines of this last species. From these experimental values, the coefficients appearing in the transformed transition moment operators of these bands were derived. Finally, a complete spectrum of the $v1$ and $v3$ bands of $\mathrm{<mrow\; data-mjx-texclass="ORD">16</mrow>}O17O16O$ and $\mathrm{<mrow\; data-mjx-texclass="ORD">17</mrow>}O16O16O$ has been generated.""