Candidate Hills-Mechanism Escapees from M2 (NGC 7089): Kinematic and Chemical Evidence for a Massive Compact Object

This dataset provides reproducibility materials supporting the manuscript “Candidate Hills-Mechanism Escapees from M2 (NGC 7089): Kinematic and Chemical Evidence for a Massive Compact Object.” The archive contains processed input catalogues, Python analysis scripts, figure products, and documentation needed to reproduce the candidate-selection, kinematic traceback, chemical-tagging, distance-conditioned, injection-recovery, and empirical false-association calculations reported in the manuscript. The full Gaia, LAMOST, and GALAH survey catalogues are not redistributed. The included documentation identifies the relevant public data sources and the derived products used in this work. To begin, see README.md and docs/REPRODUCIBILITY.md. The archive also includes a SHA-256 manifest for file-integrity verification. The included code is released under the MIT License.