PassOptionsToPackage{pdfpagelabels=false}{hyperref}
documentclass[fleqn,usenatbib,usedcolumn]{mnras}
usepackage[british]{babel}             % British English hyphenation
usepackage{newtxtext}                  % Good fonts
usepackage{newtxmath}
usepackage[T1]{fontenc}                % Good font encoding
usepackage{ae,aecompl}
usepackage{graphics}
usepackage{graphicx}                   % Including figures
             %%%%%%%%%%%%%%%%%%% TITLE PAGE %%%%%%%%%%%%%%%%%%%

% Title of the paper, and the short title which is used in the headers.
% Keep the title short and informative.
title[Short title, max. 45 characters]{MNRAS LaTeXe template -- title goes here}

% The list of authors, and the short list which is used in the headers.
% If you need two or more lines of authors, add an extra line using  newauthor
author[K. T. Smith et al.]{
Keith T. Smith,$^{1}$thanks{E-mail: mn@ras.org.uk (KTS)}
A. N. Other,$^{2}$
Third Author$^{2,3}$
and Fourth Author$^{3}$
\
% List of institutions
$^{1}$Royal Astronomical Society, Burlington House, Piccadilly, London W1J 0BQ, UK\
$^{2}$Department, Institution, Street Address, City Postal Code, Country\
$^{3}$Another Department, Different Institution, Street Address, City Postal Code, Country
}

% These dates will be filled out by the publisher
date{Accepted XXX. Received YYY; in original form ZZZ}

% Enter the current year, for the copyright statements etc.
pubyear{2015}

% Don't change these lines
begin{document}
label{firstpage}
pagerange{pageref{firstpage}--pageref{lastpage}}
maketitle

% Abstract of the paper
begin{abstract}
This is a simple template for authors to write new MNRAS papers.
The abstract should briefly describe the aims, methods, and main results of the paper.
It should be a single paragraph not more than 250 words (200 words for Letters).
No references should appear in the abstract.
end{abstract}

% Select between one and six entries from the list of approved keywords.
% Don't make up new ones.
begin{keywords}
keyword1 -- keyword2 -- keyword3
end{keywords}

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%%%%%%%%%%%%%%%%% BODY OF PAPER %%%%%%%%%%%%%%%%%%

section{Methods, Observations, Simulations etc.}

Normally the next section describes the techniques the authors used.
It is frequently split into subsections, such as Section~ref{sec:maths}  below.

subsection{Maths}
label{sec:maths} % used for referring to this section from elsewhere
Simple mathematics can be inserted into the flow of the text e.g.  $2times3=6$ or $v=220$,km,s$^{-1}$, but more complicated expressions should be entered as a numbered equation:

begin{equation}
x=frac{-bpmsqrt{b^2-4ac}}{2a}.
label{eq:quadratic}
end{equation}

Refer back to them as e.g. equation~(ref{eq:quadratic}).

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%%%%%%%%%%%%%%%%%%%% REFERENCES %%%%%%%%%%%%%%%%%%

The best way to enter references is to use BibTeX:

bibliographystyle{mnras}
bibliography{example} % if your bibtex file is called example.bib

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%%%%%%%%%%%%%%%%% APPENDICES %%%%%%%%%%%%%%%%%%%%%
appendix
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% Don't change these lines
bsp    % typesetting comment
label{lastpage}
end{document}