{"paper":{"title":"Probing the molecular gas content of galaxies in an over-dense group at z~0.7: a test case for environmental quenching","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Baptiste Jego, Beno\\^it Epinat, Constanza Mu\\~noz L\\'opez, Davor Krajnovi\\'c, Diana Ismail, Fangzhou Jiang, Florent Renaud, Fran\\c{c}oise Combes, Jonathan Freundlich, Katarina Kraljic, Leindert Boogaard, Matthieu B\\'ethermin, Philippe Salom\\'e, Rodrigo Herrera-Camus, Sandro Tacchella, Thierry Contini, Wilfried Mercier","submitted_at":"2026-06-24T19:06:55Z","abstract_excerpt":"To probe the impact of group environment on molecular gas reservoirs at intermediate redshift, we observed the CO(2-1) emission in the galaxy group COSMOS-Gr30 at $z \\sim 0.7$ with IRAM's NOEMA and 30m telescopes. This dense environment, located at the intersection of large-scale cosmic web filaments, has the specificity to host a large ($\\sim 10^{4}$ kpc$^{2}$) ionized gas structure revealed by MUSE. We detect CO emission in four galaxies of the group at $\\mathrm{S/N} > 5$ and derive upper limits for the remaining group members with secure spectroscopic redshifts. Stacked measurements indicat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.26320","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2606.26320/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}