The IRAC Distant Cluster Survey

We present the Infrared Array Camera (IRAC) Distant Cluster Survey (IDCS), a catalog of 825 galaxy cluster and group candidates identified in the Boötes field using the PZWav detection code. Candidates are selected using photometric redshift probability distributions derived from twelve-band optical and infrared imaging. The catalog spans $0.08 < z < 2.0$ (median $z = 0.93$) and includes 147 systems at z ≥ 1.5. For $z < 1.5$, simulations indicate a purity of $93%$ at the adopted S/N ≥ 4 threshold and $50%$ completeness at log(M200c/M₎ = 13.74 ± 0.01. We validate the cluster photometric redshifts through comparison with spectroscopic data, finding σz/(1+z)=0.017. Including 18 previously published IRAC Shallow Cluster Survey (ISCS) systems, a total of 80 IDCS cluster candidates are now confirmed through spectroscopy and/or X-ray observations. DESI DR1 spectroscopy provides redshifts for 38 systems, including 23 newly confirmed clusters. These DESI-confirmed systems span $0.12 < z < 0.93$ and have at least 10 spectroscopic members each, from which we measure a median velocity dispersion of ~ 490 km s⁻¹, corresponding to a median halo mass of 1.1 × 10¹⁴ M_. A positional comparison with 39 independently confirmed literature clusters yields a median centroid offset of 211 kpc. The IDCS catalog provides a cluster sample spanning a wide redshift range, with a selection function characterized through simulations and is a valuable resource for studies of large-scale structure, galaxy evolution in dense environments, and the calibration of cluster detection techniques for current and upcoming wide-field surveys, including LSST, Roman, and Euclid.