The Bochum Survey of the Southern Galactic Disk: III. Complete Data Release

Abstract

The Southern Galactic Disk Survey (GDS) monitored a mosaic of 268 fields along a $6^{°}$-wide stripe in the southern Galactic disk with simultaneous observations in $r^{\prime }$ and $i^{\prime }$ ($7^m\lesssim r^{\prime },i^{\prime }\lesssim {18}^m$) from September 2010 to September 2019. The survey design and data characteristics, as well as first results in $r^{\prime }{i}^{\prime }$, were presented by Haas et al. (2012; Paper I). Hackstein et al. (2015; Paper II) extended the photometry and analysis process, and introduced the first catalogue including photometry of all 268 fields in $U\mathrm{BV}{r}^{\prime }{i}^{\prime }{z}^{\prime }$ and $r^{\prime }{i}^{\prime }$ light curves comprising up to 272 observations per field made between September 2010 and May 2015. Here we describe our custom-made observational scheduler and conclude the GDS with $r^{\prime }{i}^{\prime }$ light curves of up to 407 observations per field until September 2019 and $U\mathrm{BV}{z}^{\prime }$ light curves for a fraction of the fields. 113,449 distinct sources are identified as variables. Together with Paper II, we identified 77,592 variables that are not listed in either the International Variable Star Index (VSX) or the cross-match catalogue by Gavras et al. (2023). All emerging catalogues, comprising light curves, photometry and reduced images, are made publicly available via the German Astrophysical Virtual Observatory (GAVO).