Data for, "A High-Confidence Catalog of Binary Star Cluster Candidates from Gaia DR3"

Table 3.csv:This primary dataset details the comprehensive physical and orbital dynamics parameters for the main catalog of binary star cluster pairs. The data covers the basic identification of the pairs (including pair IDs and constituent cluster names) and their astrometric and kinematic signatures, such as right ascension, declination, parallax, proper motions, and radial velocity. Furthermore, it details core physical properties including metallicity, logarithmic age, visual extinction, distance modulus, total mass, and the mean binary fraction. The dataset also provides an extensive suite of spatial structure parameters—such as physical half-mass radii and tidal radii—alongside critical orbital dynamics metrics. These dynamic metrics include the Roche and Jacobi radii, orbital semi-major axis, eccentricity, orbital period, inclination, the current physical separation between the clusters, and their relative and escape velocities. Finally, the table incorporates multiple assessment flags (evaluating astrometry, CMD, age, metallicity, and tidal limits) to provide a comprehensive "Status" classification for each pair. Table A.csv:This supplementary dataset serves as an extended catalog of binary star cluster pairs, retaining all the rigorous structural and dynamical metrics found in Table 3. It comprehensively documents the exact same astrometric, kinematic, physical, and spatial parameters for each pair, ensuring full traceability of their masses, ages, structural radii, and orbital characteristics. The defining feature of Table A is the inclusion of the final "result" column. This addition provides researchers with the definitive classification tier or confidence rating assigned to each pair, allowing users to filter the supplementary candidates based on the strict evaluation scores formulated through the study's multi-dimensional validation process. cross_match_result_palma.csv:This dataset compiles highly detailed physical, photometric, and binary statistical information at the individual, single-cluster level following the cross-matching process. The table records basic source identifiers, physical ages, distance moduli, physical distances, and detailed extinction and reddening parameters. It deeply analyzes the mass composition of each cluster, breaking it down into observed mass, unobserved mass, and evolved mass. For binary statistics, the dataset provides robust estimates of the binary fraction alongside its upper and lower error bounds, absolute binary star counts, and the total number of stars. Additionally, this file anchors the clusters in the Galactic framework by providing their 3D Galactocentric Cartesian coordinates and preserves a vast array of raw underlying Gaia DR3 observational parameters (such as mean magnitudes, color indices, and measurement errors) to fully reflect the foundational quality of the astrometric and photometric data. Nbody.csv:This dataset is dedicated exclusively to the results of the N-body numerical simulations conducted on the binary cluster candidates, serving as the dynamical verification of their gravitationally bound status. The data identifies each simulated pair by its ID and constituent names, and meticulously tracks the evolution of their spatial separation over time. It records the initial separation distance used at the start of the simulation, the minimum distance (pericenter) reached during dynamic evolution, and the final separation distance at the simulation's conclusion. Based on these evolutionary tracks, the table provides the final relative energy of the system, a comprehensive bound probability derived from statistical runs, and a direct boolean indicator of whether the pair remained gravitationally bound in the final simulation run. These parameters, alongside the utilized tidal radii, provide robust numerical evidence for the long-term dynamical stability of the evaluated cluster pairs.