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\documentclass[11pt]{article}

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

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\title{NEW INFRARED AMMONIA SPECTRA IN THE 5650-6350 CM${-1}$ RANGE}

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\author{\underline{\FirstName P. \LastName CACCIANI}}
\address{Univ. Lille, CNRS, UMR 8523 - PhLAM - Physique des Lasers, Atomes et Mol\'ecules, 59000 Lille, France}

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\author{{\FirstName P. \LastName \v{C}ERM{\'A}K}}
\address{Department of Experimental Physics, Faculty of Mathematics, Physics and Informatics, Comenius University, Mlynsk{\`a}dolina F2, 842 48 Bratislava, Slovakia}


\author{{\FirstName O. \LastName VOTAVA}}
\address{J. Heyrovsk{\'y} Institute of Physical Chemistry v.v.i., Czech Academy of Sciences, Dolej{\v s}kova 2155/3, 182 23 Prague 8, Czech Republic}

\author{{\FirstName J. \LastName VANDER AUWERA}}
\address{Spectroscopy, Quantum Chemistry and Atmospheric Remote Sensing (SQUARES), C.P. 160/09, Universit\'e Libre de Bruxelles, 50 avenue F.D. Roosevelt, B-1050 Brussels, Belgium }


\author{{\FirstName A. \LastName CAMPARGUE}}
\address{Univ. Grenoble Alpes, CNRS, LIPhy, 38000 Grenoble, France}



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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]{}
\renewcommand{\headrulewidth}{0.6pt}
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\usepackage[colorlinks=true,urlcolor=blue,linkcolor=blue,citecolor=blue]{hyperref}
\voffset -.65 cm

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\category {3,8}
\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{Ammonia}
 \index{Spectroscopy}

%% Place the body of your abstract below.
Accurate reference laboratory data plays a crucial role in understanding remote observations, 
especially in astrophysical surveys. In this contribution, we focus on improving and verifying the accuracy 
of our previously published peak list in the 6000 cm$^{-1}$ region
\footnote{
\href{https://doi.org/10.1016/j.jqsrt.2020.107334}{doi:10.1006/10.1016/j.jqsrt.2020.107334},
P. Cacciani, P. {\v C}erm\'ak, S. B\'eguier, A. Campargue, \textit{J. Quant. Spectrosc. Radiat. Transf.},
\textbf{258}, :107334, (2021).}
which belongs to the important 1.6 $\mu$m atmospheric transparency window. The core of this study is the analysis of a recently 
recorded high-resolution Fourier transform spectra. This source offers an improved frequency 
sampling and better traceability of the measurement conditions compared to previously studied 
Kitt Peak spectra. 4864 lines are observed in the 5650 - 6350 cm$^{-1}$ region with 2091 new transitions
 compared with our previous study, part of the HITRAN2020 database. Upper energies for 1021 levels
 are derived from 3363 assigned transitions.
Independently, ammonia spectra recorded in a supersonic jet using a tunable extended cavity diode laser
 allows to check the absolute transition energies in the limited 5980 - 6080 cm$^{-1}$ range. 
Methane transitions R0, R1 of $2\nu_3$ band measured  with kHz accuracy 
\footnote{\href{http://doi.org/10.1039/d1cp04989e}{doi:10.1039/d1cp04989e} 
O. Votava,   S. Kassi, A. Campargue  and  D. Romanini, \textit{Phys. Chem. Chem. Phys.},
 2022,24, 4157-4173}, were used as reference lines. The comparison of the positions of 20
 well isolated lines shows an agreement within the 4x10$^{-4}$ cm$^{-1}$ uncertainty of the 
ammonia positions measured in the jet expansion.


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