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%% Template article for Elsevier's document class `elsarticle'
%% with harvard style bibliographic references
%\documentclass[preprint,12pt,authoryear]{elsarticle}
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%% \documentclass[authoryear,preprint,review,12pt]{elsarticle}
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%% \documentclass[final,3p,times,twocolumn,authoryear]{elsarticle}
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\documentclass[final,5p,times,twocolumn,authoryear]{elsarticle}
%% For including figures, graphicx.sty has been loaded in
%% elsarticle.cls. If you prefer to use the old commands
%% please give \usepackage{epsfig}
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\usepackage{amssymb}
\usepackage{lipsum}
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%% You might want to define your own abbreviated commands for common used terms, e.g.:
\newcommand{\kms}{km\,s$^{-1}$}
\newcommand{\msun}{$M_\odot}
\journal{Physics Letters B}
\begin{document}
\begin{frontmatter}
%% Title, authors and addresses
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\title{Title of paper}
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\author[first]{Author name}
\affiliation[first]{organization={University of the Moon},%Department and Organization
addressline={},
city={Earth},
postcode={},
state={},
country={}}
\begin{abstract}
%% Text of abstract
Example abstract for the Physics Letters B journal. Here you provide a brief summary of the research and the results.
\end{abstract}
%%Graphical abstract
%\begin{graphicalabstract}
%\includegraphics{grabs}
%\end{graphicalabstract}
%%Research highlights
%\begin{highlights}
%\item Research highlight 1
%\item Research highlight 2
%\end{highlights}
\begin{keyword}
%% keywords here, in the form: keyword \sep keyword, up to a maximum of 6 keywords
keyword 1 \sep keyword 2 \sep keyword 3 \sep keyword 4
%% PACS codes here, in the form: \PACS code \sep code
%% MSC codes here, in the form: \MSC code \sep code
%% or \MSC[2008] code \sep code (2000 is the default)
\end{keyword}
\end{frontmatter}
%\tableofcontents
%% \linenumbers
%% main text
\section{Introduction}
\label{introduction}
Here is where you provide an introduction to work and some background. For example building on previous work of image enhancment in optical astronomy \citep{vojtekova2021learning}, \cite{sweere2022deep} developed a method to improve the resolution of X-ray images from XMM-Newton to provide similar spatial resolution to Chandra.
\section{Title 2}
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\lipsum[1]
\subsection{Subsection title}
\begin{figure}
\centering
\includegraphics[width=0.4\textwidth, angle=-90]{Physics_Letters_B.pdf}
\caption{Physics Letters B journal cover}
\label{fig_mom0}%
\end{figure}
A random equation, the Toomre stability criterion:
\begin{equation}
Q = \frac{\sigma_v \times \kappa}{\pi \times G \times \Sigma}
\end{equation}
\section{Title 3}
%%\label{}
\lipsum[2]
\subsection{Subsection title}
\lipsum[3]
\begin{table}
\begin{tabular}{l c c c}
\hline
Source & RA (J2000) & DEC (J2000) & $V_{\rm sys}$ \\
& [h,m,s] & [o,',''] & \kms \\
\hline
NGC\,253 & 00:47:33.120 & -25:17:17.59 & $235 \pm 1$ \\
M\,82 & 09:55:52.725, & +69:40:45.78 & $269 \pm 2$ \\
\hline
\end{tabular}
\caption{Random table with galaxies coordinates and velocities, Number the tables consecutively in
accordance with their appearance in the text and place any table notes below the table body. Please avoid using vertical rules and shading in table cells.
}
\label{Table1}
\end{table}
\section{Discussion}
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\section{Summary and conclusions}
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\lipsum[1-4]
\section*{Acknowledgements}
Thanks to ...
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\section{Appendix title 1}
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\section{Appendix title 2}
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