XGAPS: a sub-arcsec cross-match of galactic plane surveys

Scaringi, S; Monguió, M; Knigge, C; Fratta, M; Gänsicke, B; Groot, PJ; Rebassa-Mansergas, A; Toloza, O

Abstract

We present a sub-arcsec cross-match of Gaia Data Release 3 (DR3) against the INT Galactic Plane Surveys (IGAPS) and the United Kingdom Infrared Deep Sky Survey (UKIDSS). The resulting cross-match of Galactic Plane Surveys (XGAPS) provides additional precise photometry (URGO, g, r, i, Hα, J, H, and K) to the Gaia photometry. In building the catalogue, proper motions given in Gaia DR3 are wound back to match the epochs of the IGAPS constituent surveys (INT Photometric HαSurvey of the Northern Galactic Plane, IPHAS, and the UV-Excess Survey of the Northern Galactic Plane, UVEX) and UKIDSS, ensuring high-proper motion objects are appropriately cross-matched. The catalogue contains 33 987 180 sources. The requirement of >3σ parallax detection for every included source means that distances out to 1–1.5 kpc are well covered. In producing XGAPS, we have also trained a Random Forest classifier to discern targets with problematic astrometric solutions. Selection cuts based on the classifier results can be used to clean colour-magnitude and colour–colour diagrams in a controlled and justified manner, as well as producing subsets of astrometrically reliable targets. We provide XGAPS as a 111 column table. Uses of the catalogue include the selection of Galactic targets for multi-object spectroscopic surveys as well as identification of specific Galactic populations.

Citation

Scaringi, S., Monguió, M., Knigge, C., Fratta, M., Gänsicke, B., Groot, P., …Toloza, O. (2022). XGAPS: a sub-arcsec cross-match of galactic plane surveys. Monthly Notices of the Royal Astronomical Society, 518(2), 3137-3146. https://doi.org/10.1093/mnras/stac3353

• Journal Article Type: Article
• Acceptance Date: Nov 14, 2022
• Online Publication Date: Nov 30, 2022
• Publication Date: 2022
• Deposit Date: Jan 6, 2023
• Publicly Available Date: Jan 6, 2023
• Journal: Monthly Notices of the Royal Astronomical Society
• Print ISSN: 0035-8711
• Electronic ISSN: 1365-2966
• Publisher: Royal Astronomical Society
• Peer Reviewed: Peer Reviewed
• Volume: 518
• Issue: 2
• Pages: 3137-3146
• DOI: https://doi.org/10.1093/mnras/stac3353
• Public URL: https://durham-repository.worktribe.com/output/1184080