COSMOS2025: The COSMOS-Web galaxy catalog of photometry, morphology, redshifts, and physical parameters from JWST, HST, and ground-based imaging
Year: 2025
Type: article
Abstract: We present COSMOS2025, the COSMOS-Web catalog of photometry, morphology, photometric redshifts, and physical parameters for more than 700 000 galaxies in the Cosmic Evolution Survey (COSMOS) field. This catalog is based on our James Webb Space Telescope 255 h COSMOS-Web program, which provides deep near-infrared imaging in four NIRCam (F115W, F150W, F277W, F444W) and one MIRI (F770W) filter over the central ~0.54 deg 2 (~0.2 deg 2 for MIRI) in COSMOS. These data are combined with ground- and space-based data to derive photometric measurements of NIRCam-detected sources using both fixed-aperture photometry (on the space-based bands) and a profile-fitting technique on all 37 bands spanning 0.3 μm to 8 μm. We provide morphology for all sources from complementary techniques including profile fitting and machine-learning classification. We derive photometric redshifts, physical parameters, and non-parametric star formation histories from spectral energy distribution (SED) fitting. The catalog has been extensively validated against previous COSMOS catalogs and other surveys. Photometric redshift accuracy measured using spectroscopically confirmed galaxies out to z ~ 9 reaches σ MAD = 0.012 at m F444W < 28 and remains at σ MAD ≲ 0.03 as a function of magnitude, color, and galaxy type. This represents a factor of ~2 improvement at 26 AB mag compared to COSMOS2020. The catalog is approximately 80% complete at log( M ⋆ /M ⊙ ) ~ 9 at z ~ 10 and at log( M ⋆ /M ⊙ ) ~ 7 at z ~ 0.2, representing a gain of 1 dex compared to COSMOS2020. COSMOS2025 represents the definitive COSMOS-Web catalog. It is provided with complete documentation, together with redshift probability distributions, and it is ready for scientific exploitation today.
Source: Astronomy and Astrophysics
Authors: Marko Shuntov, Hollis B. Akins, Louise Paquereau, Caitlin M. Casey, Olivier Ilbert, Rafael C. Arango-Toro, Henry Joy McCracken, Maximilien Franco, Santosh Harish, Jeyhan S. Kartaltepe, Anton M. Koekemoer, Lilan Yang, Edward M. Berman, Jacqueline E. McCleary, Sune Toft, Raphaël Gavazzi, Mark J. Achenbach, Emmanuel Bertin, Malte Brinch, Jackie Champagne, Nima Chartab, Nicole E. Drakos, Eiichi Egami, Ryan Endsley, Andreas L. Faisst, Xiaohui Fan, Carter Flayhart, William G. Hartley, Hossein Hatamnia, Ghassem Gozaliasl, Fabrizio Gentile, Iris Jermann, Shuowen Jin, Koki Kakiichi, Ali Ahmad Khostovan, Martin Kümmel, Clotilde Laigle, Ronaldo Laishram, Erini Lambrides, Daizhong Liu, Jianwei Lyu, Georgios Magdis, Bahram Mobasher, Thibaud Moutard, Alvio Renzini, R. Michael Rich, David B. Sanders, Zahra Sattari, Brant E. Robertson, Marc Schefer, Diana Scognamiglio, Nick Scoville, John D. Silverman, Sina Taamoli, Benny Trakhtenbrot, Francesco Valentino, Feige Wang, John R. Weaver, Jinyi Yang
Institutions: University of Geneva, University of Copenhagen, The University of Texas at Austin, Centre National de la Recherche Scientifique, Institut d'Astrophysique de Paris, Sorbonne Université, University of California, Santa Barbara, Aix-Marseille Université, Laboratoire d’Astrophysique de Marseille, Université Paris Cité, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Université Paris-Saclay, Astrophysique, Instrumentation et Modélisation, Rochester Institute of Technology, Space Telescope Science Institute, Northeastern University, University of Hawaiʻi at Mānoa, DTU Space, Technical University of Denmark, University of Arizona, California Institute of Technology, Infrared Processing and Analysis Center, University of Hawaii System, University of Hawaii at Hilo, University of California, Riverside, Aalto University, University of Bologna, University of Kentucky, Ludwig-Maximilians-Universität München, National Astronomical Observatory of Japan, Goddard Space Flight Center, Chinese Academy of Sciences, Purple Mountain Observatory, European Space Agency, European Space Astronomy Centre, Osservatorio Astronomico di Padova, National Institute for Astrophysics, University of California, Los Angeles, University of California, Santa Cruz, Jet Propulsion Laboratory, Kavli Institute for the Physics and Mathematics of the Universe, The University of Tokyo, Tel Aviv University, Max Planck Institute for Extraterrestrial Physics, Excellence Cluster Origins, University of Michigan
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,865
Funder: Agence Nationale de la Recherche
OpenAlex ID: W4416516626