  With the aim of assessing if low surface brightness galaxies host stellar
bars, and study the dependence of the occurrence of bars as a function of
surface brightness, we use the Galaxy Zoo 2 dataset to construct a large
volume-limited sample of galaxies, and segregate the galaxies as low and high
surface brightness in terms of their central surface brightness. We find that
the fraction of low surface brightness galaxies hosting strong bars is
systematically lower than the one found for high surface brightness galaxies.
The dependence of the bar fraction on the central surface brightness is mostly
driven by a correlation of the surface brightness with the spin and the
gas-richness of the galaxies, showing only a minor dependence on the surface
brightness. We also find that the length of the bars shows a strong dependence
on the surface brightness, and although some of this dependence is attributed
to the gas content, even at fixed gas-to-stellar mass ratio, high surface
brightness galaxies host longer bars than their low surface brightness
counterparts, which we attribute to an anticorrelation of the surface
brightness with the spin.
