The data for "An Enhanced Catalog of Gaia DR3 Galaxy Candidates with Spectroscopic and Machine-Learning Photometric Redshifts"

Machine-readable version of Table 4 from Hwang & Hwang. This dataset provides the enhanced Gaia DR3 galaxy_candidates catalog with redshift information and source reliability estimates. For each source, the table includes the Gaia DR3 source identifier, equatorial coordinates (R.A. and Decl., J2016.0), the adopted redshift (spectroscopic or machine-learning photometric), the associated redshift uncertainty, a redshift flag indicating the redshift origin (0 = spectroscopic, 1 = photometric, 2 = insufficient data for risk estimation), and the extragalactic source risk score (P₀). Smaller P₀ values indicate a higher probability that the source is a genuine galaxy and that its photometric redshift is reliable.