The Bochum Survey of the Southern Galactic Disk: IV. Multi-Band Photometry
Abstract
The Southern Galactic Disk Survey (GDS) monitored a mosaic of 268 fields along a 6∘-wide stripe in the southern galactic disk from September 2010 to September 2019. These fields were observed between 21 and 407 times simultaneously in r' (8 mag ≲ r' ≲ 18 mag) and i' (7 mag ≲ i' ≲ 17 mag), supplemented by between 2 and 147 observations in each of the bands U, B, V, and z'. Here we present the matched multi-band catalogue, which integrates photometry and light curve data from all bands, containing photometry for almost 21.7 million Gaia DR3 sources, of which 113 449 are identified as variables. We give an overview of the survey's variable content with respect to its main characteristics and known variability type classifications. The comparison with the cross-match catalogue of Gaia DR3 sources with variables from the literature compiled by Gavras et al. (2023) and the International Variable Star Index (VSX) indicates that approximately 40 % of the variable sources remain unclassified in terms of variability type. Light curves for all of these sources are contained in the GDS data catalogues, available via the German Astrophysical Virtual Observatory (GAVO), and can contribute to their classification.
Versions
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BibTeX
@misc{blex2026bochum,
title = {{The Bochum Survey of the Southern Galactic Disk: IV. Multi-Band Photometry}},
author = {Julia Blex and Dominik J. Bomans and Kerstin Weis and Markus Demleitner and Moritz Hackstein and Anna Franckowiak and Michael Ramolla and Christian Westhues and Christofer Fein and Rolf Chini},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.38827},
eprint = {2610.38827},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.38827},
}
RIS
TY - UNPB
TI - The Bochum Survey of the Southern Galactic Disk: IV. Multi-Band Photometry
AU - Julia Blex
AU - Dominik J. Bomans
AU - Kerstin Weis
AU - Markus Demleitner
AU - Moritz Hackstein
AU - Anna Franckowiak
AU - Michael Ramolla
AU - Christian Westhues
AU - Christofer Fein
AU - Rolf Chini
PY - 2026
DA - 2026/10/28
PB - arXiv
DO - 10.48550/arxiv.2610.38827
UR - https://arxiv.org/abs/2610.38827
AB - The Southern Galactic Disk Survey (GDS) monitored a mosaic of 268 fields along a 6^∘-wide stripe in the southern galactic disk from September 2010 to September 2019. These fields were observed between 21 and 407 times simultaneously in r' (8 mag ≲ r' ≲ 18 mag) and i' (7 mag ≲ i' ≲ 17 mag), supplemented by between 2 and 147 observations in each of the bands U, B, V, and z'. Here we present the matched multi-band catalogue, which integrates photometry and light curve data from all bands, containing photometry for almost 21.7 million Gaia DR3 sources, of which 113 449 are identified as variables. We give an overview of the survey's variable content with respect to its main characteristics and known variability type classifications. The comparison with the cross-match catalogue of Gaia DR3 sources with variables from the literature compiled by Gavras et al. (2023) and the International Variable Star Index (VSX) indicates that approximately 40 % of the variable sources remain unclassified in terms of variability type. Light curves for all of these sources are contained in the GDS data catalogues, available via the German Astrophysical Virtual Observatory (GAVO), and can contribute to their classification.
ER -