Missing header in aastex package

Question

I'm using the aastex package (v5.2), and trying to make a header appear using the \shorttitle and \shortauthors commands (which take the place of \leftheader \rightheader), but they aren't working for me. Here is my code:

\documentclass[12pt,preprint]{aastex}
\usepackage[left=1in,top=1in,right=1in,bottom=1in]{geometry}

\shorttitle{short title}
\shortauthors{short author}
\begin{document}
\title{Long Title}
\author{Long Author}
\bibliographystyle{plainnat}

\begin{abstract}
Test
\end{abstract}

\maketitle

\section{Introduction}
Text
\newpage
New page test
\end{document}  

Anybody have any ideas?

Answer 1

hpesoj626 points out that the running headers from \shorttitle and \shortauthors don't actually appear on the document... for whatever reasons. As per his recommendation, I'm using the fancyhdr package --- which is working nicely.

Answer 2

You can modify the plaintop page style that's used with the preprint option:

\makeatletter
\def\ps@plaintop{%
 \let\@mkboth\@gobbletwo
 \def\@oddfoot{}%
 \def\@evenfoot{}%
 \def\@oddhead{%
   \rmfamily\hfil\@rectohead\ --\ \@versohead\hfil\llap{\thepage}}%
 \let\@evenhead\@oddhead
}
\makeatother
\pagestyle{plaintop}

Modify to suit