The Gaia/IPHAS and Gaia/KIS Value-Added Catalogues
S. Scaringi (1,2), C. Knigge (3), J.E. Drew (4), M. Monguio (4), E., Breedt (5), M. Fratta (1,2), B. Gaensicke (6), T.J. Maccarone (1), A.F. Pala, (6), C. Schill (2) ((1) TTU, (2) Canterbury, (3) Soton, (4) Herts, (5), Cambridge, (6) Warwick)

TL;DR
This paper introduces high-precision, cross-matched Gaia-based catalogues with additional photometry from IPHAS and KIS, enabling improved stellar analysis within 1-1.5 kpc, and provides tools for data quality control and selection.
Contribution
The authors present new Gaia/IPHAS and Gaia/KIS value-added catalogues with enhanced photometry, proper motion correction, and data quality parameters, facilitating better stellar population studies.
Findings
Catalogues contain nearly 8 million and 800,000 sources respectively.
Distances are reliably measured out to 1-1.5 kpc for sources with >5-sigma parallax detection.
Provided data quality parameters enable controlled selection and cleaning of the datasets.
Abstract
We present a sub-arcsecond cross-match of Gaia DR2 against the INT Photometric H-alpha Survey of the Northern Galactic Plane Data Release 2 (IPHAS DR2) and the Kepler-INT Survey (KIS). The resulting value-added catalogues (VACs) provide additional precise photometry to the Gaia photometry (r, i and H-alpha for IPHAS, with additional U and g for KIS). In building the catalogue, proper motions given in \gaia\ DR2 are wound back to match the epochs of IPHAS DR2, thus ensuring high proper motion objects are appropriately cross-matched. The catalogues contain 7,927,224 and 791,071 sources for IPHAS and KIS, respectively. The requirement of >5-sigma parallax detection for every included source means that distances out to 1--1.5 kpc are well covered. We define two additional parameters for each catalogued object: (i) , a magnitude-dependent tracer of the quality of the Gaia astrometric…
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