[Tex/LaTex] Show Abstract Title in Latex

Question

I'm using a latex template given to me to write up a project I'm writing. However, above the abstract, it does not explicitly show the title "Abstract" which I would like it to do. The document is a two column doc, whereas the abstract is just one column.

I think normally it should show abstract title so maybe somewhere in my document it specifies not to?
The top part of my code reads:

\documentclass[a4paper,aps,twocolumn,secnumarabic,
balancelastpage,amsmath,amssymb,nofootinbib]{revtex4-1}

\usepackage{lgrind}  
\usepackage{chapterbib}  
\usepackage[usenames,dvipsnames]{color}
\usepackage{graphics}
\usepackage[pdftex]{graphicx}    
\usepackage{longtable} 
\usepackage{epsf}       
\usepackage{bm}         
\usepackage{thumbpdf}
\usepackage[colorlinks=true]{hyperref}
\usepackage{geometry}
\geometry{verbose,a4paper,tmargin=2.9cm,bmargin=2.8cm,lmargin=2.5cm,rmargin=2.5cm,
headheight=13.6pt}
\usepackage[nodisplayskipstretch]{setspace} 
\renewcommand*\arraystretch{.6}


\renewcommand{\vec}[1]{\mathbf{#1}}
\renewcommand\thesection{\arabic{section}}
\renewcommand\thesubsection{\thesection.\arabic{subsection}}
\renewcommand\refname{References}

\begin{document}
\title{My Title}
\author         {me}
\date{\today}
\affiliation{University of Somewhere}


\begin{abstract}
My abstract text
\end{abstract}

\end{document}

I have probably included more than necessary, but don't know what might be relevant.

I've tried the various other posts about abstracts but can't find anything that is quite the same problem.

Answer 1

The normal revtex style, with the options you have chosen, is not to print a header for the abstract.

You can add the option preprint, but also 10pt, because the option also sets 12pt:

\documentclass[
  a4paper,aps,twocolumn,secnumarabic,
  balancelastpage,amsmath,amssymb,nofootinbib,
  preprint,10pt,
]{revtex4-1}

\begin{document}
\title{My Title}
\author         {me}
\date{\today}
\affiliation{University of Somewhere}

\begin{abstract}
My abstract text
\end{abstract}

\maketitle

\end{document}

Another option is to just add \textbf{abstractname}, which I would prefer, from a typographic point of view.

\documentclass[
  a4paper,aps,twocolumn,secnumarabic,
  balancelastpage,amsmath,amssymb,nofootinbib,
]{revtex4-1}


\begin{document}
\title{My Title}
\author         {me}
\date{\today}
\affiliation{University of Somewhere}

\begin{abstract}
\textbf{\abstractname.} My abstract text
\end{abstract}

\maketitle

\end{document}