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\documentclass[11pt]{article}

\usepackage{hrms}  %% Page settings, style ... for the HRMS abstract book.

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\title{INFRARED SPECTROSCOPY OF SMALL ORGANIC MOLECULES TO SUPPORT STUDIES OF PLANETARY ATMOSPHERES}

%% Note that \author and \address macros must be paired.
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\author{\underline{\FirstName K. \LastName LEROUX}, \FirstName A. \LastName RIZOPOULOS, \FirstName J. \LastName VANDER AUWERA}
\address{SQUARES, C.P. 160/09, Universit\'e Libre de Bruxelles, 50 avenue F. D. Roosevelt, B-1050 Brussels, Belgium}

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\usepackage{fancyhdr}
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\fancyhead[C]{{\footnotesize \textit{HRMS, 28th Colloquium, Dijon, France,
  Aug. 28 - Sept. 1, 2023}}}
\fancyfoot[C]{}
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\usepackage[colorlinks=true,urlcolor=blue,linkcolor=blue,citecolor=blue]{hyperref}
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\category {3,9}
\begin{document}

\maketitle  %% This will also build the list of author(s) and addresse(s).

%% Index macro(s): see the abstract samples and the instructions
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\index{infrared}
\index{vibration_rotation}

Quantifying the concentrations of gaseous species in atmospheres using optical remote sensing techniques rely on spectroscopy and is intimately linked to the availability of reference spectroscopic information. Ideally this information must be available at high spectral resolution and under a representative range of temperature and pressure. \vspace{3pt} % Broadly, such a reference information may come in two different forms: line-by-line data or absorption cross sections as a function of the wavenumber. 

% Many organic molecules exist in the Earth atmosphere and in the atmospheres of planets and satellites of the Solar System. Their detection and quantification are mainly carried out using optical remote sensing techniques, using ground and satellite-based instrumentation. However, these measurements rely on the availability of reference spectroscopic information measured in laboratories, which is missing or incomplete for many organic compounds.

The present work enters the frame of a project aiming to improve the spectroscopic information available or to provide missing information for seve\-ral small organic molecules thought to be important in the atmospheres of planets and moons of the Solar System. It relies on Fourier transform spectroscopy to provide line-by-line information or absorption cross sections for the target species, mainly in the $600-2000$ cm$^{-1}$ region. Current results on absorption cross sections of this recently started work will be presented and discussed.

% This spectroscopic information is measured for pure samples and mixtures of the target species with air, in conditions of pressure and temperature mimicking those found in the Earth troposphere where these compounds are expected to be observed. 

\end{document}
