This works fine as long as you take out the text that's not inside a command and before
\maketitle
:
Code: Select all
\documentclass[preprint,5p]{elsarticle}
\usepackage{natbib}
\usepackage{geometry}
\usepackage{epstopdf}
\begin{document}
\journal{Astroparticle Physics}
\begin{frontmatter}
\title{blah blah blah}
%...a bunch of authors...
\author[utah]{Corresponding Author Name\corref{cor1}}
\ead{Corresponding Author Email Address}
\cortext[cor1]{Corresponding author}
%...a bunch more authors...
\address[abc]{A Place}
%...a bunch more addresses...
\begin{abstract}
A medium sized abstract
\end{abstract}
\begin{keyword}
A \sep few \sep keywords
\end{keyword}
\end{frontmatter}
% \doublespacing
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\section{Introduction}
Blah blah blah. Blah blah blah. Blah blah blah. Blah blah blah.
Blah blah blah. Blah blah blah. Blah blah blah. Blah blah blah.
Blah blah blah. Blah blah blah. Blah blah blah. Blah blah blah.
Blah blah blah. Blah blah blah. Blah blah blah. Blah blah blah.
Blah blah blah. Blah blah blah. Blah blah blah. Blah blah blah.
Blah blah blah. Blah blah blah. Blah blah blah. Blah blah blah.
Blah blah blah. Blah blah blah. Blah blah blah. Blah blah blah.
\end{document}
Oh, and I also had to remove your
\doublespace
command, as it caused an error.
The rule with elsarticle is, don't put anything inside the frontmatter environment that isn't front matter (e.g., author, abstract, title, etc., surrounded by the appropriate command/environment).