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%%
%% Sample TeX file for the HRMS Dijon 2023 abstracts
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\documentclass[11pt]{article}

\usepackage{hrms}  %% Page settings, style ... for the HRMS abstract book.
\usepackage{wrapfig}%% *-----------------------------------------------------------------------------------------*
\title{SEARCHING NEW MOLECULES IN THE ISM BY ROTATIONAL SPECTROSCOPY: ANALYSIS OF INDOLE}

%% Note that \author and \address macros must be paired.
%% The names of authors must also appear IN CAPITALS.
%% The name(s) of author(s) presenting the work is(are) usually underlined.

\author{\underline{\FirstName C. \LastName BERMUDEZ},
	\FirstName C. \LastName CALABRESE, \FirstName A. \LastName LESARRI }
\address{Dpo. Qu\'{i}mica F\'{i}sica y Qu\'{i}mica Inorg\'{a}nica, Facultad de Ciencias - I.U. CINQUIMA, Universidad de Valladolid, Paseo de Bel\'{e}n 7, Valladolid 47011, Spain.}

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\fancyhead[C]{{\footnotesize \textit{HRMS, 28th Colloquium, Dijon, France,
  Aug. 28 - Sept. 1, 2023}}}
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\begin{document}

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%% Index macro(s): see the abstract samples and the instructions
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Most of the chemical species identified in the interstellar medium (ISM) or
circumstellar envelopes (CSE), about 290 species, have been detected by
rotational spectroscopy. 
Earth observatories, like the IRAM 30 m or the 40 m Yebes radiotelescopes,
detect the spectral emission of the chemical species present in the objects
of the ISM or CSE in the millimeter frequency ranges (around 75-300 GHz).
Those spectra contain transitions from all the chemical species in space,
hence, if the rotational spectra of each individual specie is not known,
the identification of individual species is almost impossible.
Our goal in the laboratory consists of providing the experimental spectroscopic 
parameters (rotational constants and conformational behavior) to be able
to identify the chemical species in the space.

\begin{wrapfigure}{r}{0.3\textwidth}
	\vspace{-9mm}
	\centering
	\includegraphics[width=0.3\textwidth]{indole.eps}
	\vspace{-9mm}
	\caption{Indole.}
	\vspace{-5mm}
\end{wrapfigure}

In the molecular cloud TMC-1 (Taurus Molecular Cloud), several complex organic
molecules (COMs) have been detected, between them, the first aromatic species,
like: benzonitrle or indene.\footnote{McGuire, B. \textit{et al.},
{\em Science\/}, {\bf 359}, 202-205 (2018); Cernicharo, J. {\em et al., Astron.
Astrophys.\/}, {\bf 649}, L15 (2021).}
These detections contribute with essential information to the question of the
presence of the PAHs (polycyclic aromatic hydrocarbons) in the space.
Indole is a PAH (see Figure 1) whose structure is relatively close to 
indene or cyanoindene, both detected in TMC-1.
The rotational spectra of indole is known up to 60 GHz\footnote{Suenram, R. D.,
\textit{et al.}, {\em J. Mol. Spectrosc.\/}, {\bf 127}, 472-480 (2022);
Caminati, W., \textit{et al.,} {\em J. Mol. Struct.\/}, {\bf 240}, 253-262 (1990).}, 
but to be able to search for this species in the space a precise set of rotational
parameters and a wide frequency range are required.
In the Physical Chemistry department of the University of Valladolid, we have now
available a broadband chirped pulsed rotational spectrometer covering the 75-110 GHz
frequency range.
In the present contribution, I will introduce the spectroscopic fundamentals and the
work about molecules of astronomical interest that we are working on in the group,
with special attention to the analysis of the rotational spectrum of indole 
up to 110 GHz.
More than 400 transitions for indole will be included in a global analysis that 
will allow to search this species in molecular clouds like TMC-1 in the space.

\end{document}
