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Le Guillou, L. Napolitano, M. E. Levi, M. Ishak, M. J. Temple, M. Landriau, M. Manera, M. Schubnell, P. Doel, R. Canning, R. Kehoe, R. Miquel, R. Zhou, S. Ahlen, S. Ferraro, S. Gontcho A Gontcho, S. Juneau, T. Claybaugh","submitted_at":"2025-04-28T22:46:41Z","abstract_excerpt":"We present the largest catalog to date of triply ionized carbon (CIV) absorbers detected in quasar spectra from the Dark Energy Spectroscopic Instrument. Using an automated matched-kernel convolution method with adaptive signal-to-noise thresholds, we identify $101,487$ CIV systems in the redshift range $1.4 < z < 4.5$ from $300,637$ quasar spectra. Completeness is estimated via Monte Carlo simulations and catalog is $50\\%$ complete at $\\mathrm{EW}_{\\mathrm{CIV}} \\geq 0.4$ Angstroms. 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