# How does one indicate the corresponding author when using the authblk package?

This question is not a duplicate of How to print the corresponding author, because that question is asking specifically how to make the corresponding author's name appear to the left of the complete list of authors, while also appearing in the complete list of authors.

I'd like to know the simplest, most standard way to indicate the corresponding author when using the authblk package. I've googled a fair amount and have not found the answer. If it's relevant, I'll be using the titlepage option, as in \documentclass[titlepage]{article}.

Here's a minimal example where the corresponding author is not indicated. So I'd like to know how to alter this to indicate the corresponding author.

\documentclass[titlepage]{article}
\usepackage[affil-it]{authblk}
\usepackage[english]{babel}
\usepackage{blindtext}

\title{An efficient method for exploiting midichlorians in weak life-forms}

\author[2]{Darth Sidious}

\affil[1]{%
Office of the Supreme Commander of the Imperial Forces,
The Galactic Empire, The Bridge, Executor}
\affil[2]{%
Order of the Sith Lords, LiMerge Power Building, The Works, Coruscant}

\begin{document}

\maketitle
\blindtext
\end{document}


The following code produces the screenshot later on, a screen of the log is attached as well.

\listfiles
\documentclass[titlepage]{article}
\usepackage[affil-it]{authblk}
\usepackage[english]{babel}
\usepackage{blindtext}

\title{An efficient method for exploiting midichlorians in weak
life-forms}

\author[2]{Darth Sidious}

\affil[1]{%
Office of the Supreme Commander of the Imperial Forces,
The Galactic Empire, The Bridge, Executor}
\affil[2]{%
Order of the Sith Lords, LiMerge Power
Building, The Works, Coruscant}

\begin{document}

\maketitle
\blindtext
\end{document}


You can see the number 1 is repeated as a superscript.

If I add \listfiles to the document, here is the log I get:

• Make a full minimal example. As far as I know, authblk does not have anything build in to do this. But by any means, consult the manual. – daleif May 16 '16 at 8:23
• The footnotemarker should be an asterisk *, not a number. – Johannes_B May 16 '16 at 9:05
• @Johannes_B How do I make the footnotemarker be an asterisk? Edit: Oh, perhaps with \renewcommand{\thefootnote}{\fnsymbol{footnote}} – littleO May 16 '16 at 9:06
• @Johannes_B Somehow the problem seems to stem from the fact that I'm using the titlepage option, as in \documentclass[titlepage]{article}. When I remove that option, I get the asterisk, as desired. – littleO May 16 '16 at 10:09
• Oh, my mistake. I removed that option because i didn't want an extra page. I immediately fogot that. Let me look closer. – Johannes_B May 16 '16 at 10:20

This is more a workaround then an official solution i guess. But depending on the journal author guidelines for your manuscript this formatting might look more appropriate. It includes the indicator for the corresponding author as a affiliation.

Example code:

\listfiles
\documentclass[titlepage]{article}
\usepackage[affil-it]{authblk}
\usepackage[english]{babel}
\usepackage{blindtext}

\title{An efficient method for exploiting midichlorians in weak life-forms}

\author[2]{Darth Sidious}

\affil[1]{Office of the Supreme Commander of the Imperial Forces, The Galactic Empire, The Bridge, Executor}
\affil[2]{Order of the Sith Lords, LiMerge Power Building, The Works, Coruscant}

\begin{document}

\maketitle
\blindtext
\end{document}


Example picture:


\documentclass[titlepage]{article}
\usepackage[affil-it]{authblk}
\usepackage[english]{babel}
\usepackage{blindtext}

\renewcommand{\thefootnote}{\fnsymbol{footnote}}
\title{An efficient method for exploiting midichlorians in weak life-forms}

\author[2]{Darth Sidious}

\affil[1]{%
Office of the Supreme Commander of the Imperial Forces,
The Galactic Empire, The Bridge, Executor}
\affil[2]{%
Order of the Sith Lords, LiMerge Power Building, The Works, Coruscant}

\begin{document}

\maketitle
\renewcommand{\thefootnote}{\arabic{footnote}}
\blindtext
\end{document}

• You might want to reset the footnote counter after the titlepage, right now, the change is global. – Johannes_B May 18 '16 at 8:26
• @Johannes_B Thanks, would I do that by placing the line \setcounter{footnote}{0} immediately after the \maketitle line? – littleO May 18 '16 at 8:56
• \renewcommand{\thefootnote}{\arabic{footnote}} after maketitle. I wasn't clear, sorry. – Johannes_B May 18 '16 at 9:07

I found this question when googling for setting corresponding authors in ACM templates. This is how to set corresponding authors in an ACM template:

\author{Author 1}
\affiliation{\institution{Affiliation}}
\email{email}
\authornote{Corresponding authors}

\author{Author 2}
\affiliation{\institution{Affiliation}}
\email{email}
\authornotemark[1]

\author{Author 3}
\affiliation{\institution{Affiliation}}
\email{email}


Here, author 1 and 2 are both set as corresponding authors, but author 3 isn't. Further explanation can be found here: https://www.acm.org/binaries/content/assets/publications/consolidated-tex-template/acmart.pdf