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\title{LINE SHAPE CALCULATIONS FOR THE H$_2$O-O$_2$ COLLISION SYSTEM}

\author{\underline{\FirstName R. \LastName GAMACHE},
  \underline{\FirstName N. \LastName ORPHANOS}}
 \address{University of Massachusetts Lowell, 265 Riverside Street, 01854, Lowell, MA, USA}

\author{\underline{\FirstName B. \LastName VISPOEL}}
 \address{Research unit Lasers and Spectroscopies (LLS), Institute of Life, Earth and Environment (ILEE), University of Namur, 61 Rue de Bruxelles, Namur, Belgium}

\author{\underline{\FirstName K. \LastName SUNG},
  \underline{\FirstName G. \LastName TOON}}
\address{Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109-8099, USA}

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\fancyhead[C]{{\footnotesize \textit{HRMS, 28th Colloquium, Dijon, France,
  Aug. 28 - Sept. 1, 2023}}}
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\index{H$_2$O-O$_2$}
\index{Line Shape parameters}

Modified Complex Robert-Bonamy (MCRB) calculations were made for the H$_2$O-O$_2$ collision system using an intermolecular potential comprised of dipole-quadrupole, quadrupole-quadrupole, atom-atom component expanded to 20$^{th}$ order and rank 4, induction and London dispersion terms. The intermolecular potential was refined using the high-precision measurements of half-widths and line shifts made in this work. The final potential gives results that compare very well with the measurements; average percent difference of 0.052 and a standard deviation of 5.108 percent.  With previous data sets the agreement was never better than $\sim$15 percent standard deviation. Calculations employing this intermolecular potential were then made for some fourteen thousand water vapor transition in the 5680-9090 cm$^{-1}$ range and for the temperature range 200-3000 K for the H$_2$O-O$_2$ collision systems. These data were combined with H$_2$O-N$_2$ data to produce line shape data for H$_2$O-air.  The temperature dependence of the half-widths and line shifts were determined with the Double Power Law model of Gamache and Vispoel\footnote{
\href {http://dx.doi.org/10.1016/j.jqsrt.2018.05.019}{doi:10.1016/j.jqsrt.2018.05.019}, 
R.R. Gamache and B. Vispoel, \textit {J. Quant. Spectrosc. Radiat. Transfer}
\textbf {217}, 440-452, (2018).}. The final line shape data were added to a HITRAN-like line list for use in modeling tellurics features toward extreme precision radial velocity measurements made by the Palomar Radial Velocity Instrument (PARVI), which is a near infrared fiber-fed diffraction limited high resolution spectrograph built for Doppler measurements of the host stars of extrasolar planets.

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