deletions | additions       diff --git a/header.tex b/header.tex  index 93b4e8e..4a3c34f 100644  --- a/header.tex  +++ b/header.tex 
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% Astronomy:  \def\arcsec{\ensuremath{^{\prime\prime}}}   \def{\farcm}{\mbox{\ensuremath{.\mkern-4mu^\prime}}}  \def{\farcs}{\mbox{\ensuremath{.\!\!^{\prime\prime}}}}  \def{\fdg}{\mbox{\ensuremath{.\!\!^\circ}}}  \def{\arcdeg}{\ensuremath{^{\circ}}} \def\farcm{\mbox{\ensuremath{.\mkern-4mu^\prime}}}  \def\farcs{\mbox{\ensuremath{.\!\!^{\prime\prime}}}}  \def\fdg{\mbox{\ensuremath{.\!\!^\circ}}}  \def\arcdeg{\ensuremath{^{\circ}}}  \def\hgpcq{\mbox{$h^{-3}$Gpc$^3$}}  \def\hmpcq{\mbox{$h^{-3}$Mpc$^3$}}  \def\perhmpcq{\mbox{$h^{3}$Mpc$^{-3}$}} 
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