{"paper":{"title":"JWST Exoplanetary Worlds and Elemental Survey (JEWELS) II: Condensation Temperature Trends and Galactic Chemical Evolution in JWST Planet-Hosting Stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"Condensation temperature trends in 25 planet-hosting stars show no dependence on stellar or planetary properties after galactic chemical evolution correction.","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"Fan Liu, Gordon (Kai Hou) Yip, Qinghui Sun, Sharon Xuesong Wang, Xianyu Tan, Zhengduo Li, Zitao Lin","submitted_at":"2026-04-20T11:32:59Z","abstract_excerpt":"We present high-precision chemical abundances for 25 FGK-type stars hosting exoplanets observed in JWST Cycle 3 programs and all GTO and DDT programs from Cycles 1-3, based on high-resolution, high signal-to-noise ratio optical spectra from ground-based telescopes. Using a strictly differential, line-by-line analysis relative to the Sun, we derive homogeneous stellar parameters and abundances for 19 elements with atomic number Z <= 30. The sample spans a wide range of stellar properties, with [Fe/H] = -0.6 to +0.4 dex and effective temperatures between 4700 and 6600 K, and includes hosts of te"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"The Tcond slopes show no dependence on stellar or planetary properties, indicating that they reflect a mixture of multiple mechanisms, with planet-related signatures entangled in GCE and stellar evolution effects. Thus, Tcond trends require careful interpretation.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"That the strictly differential line-by-line analysis relative to the Sun combined with isochrone ages yields abundances and ages accurate enough to reliably detect or exclude dependencies on planetary properties in a sample of only 25 stars spanning a range of metallicities and temperatures.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Condensation temperature trends in JWST planet-host stars are independent of stellar and planetary properties after GCE correction, indicating mixed origins from galactic evolution and stellar processes.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Condensation temperature trends in 25 planet-hosting stars show no dependence on stellar or planetary properties after galactic chemical evolution correction.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"4c5009d61abf6c9fb022cfa825ff4fa24915aa1688ab83b9774cea72999ca574"},"source":{"id":"2604.18115","kind":"arxiv","version":2},"verdict":{"id":"605aaf17-cff8-4735-b9d5-94d08e71936b","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-10T03:40:32.259250Z","strongest_claim":"The Tcond slopes show no dependence on stellar or planetary properties, indicating that they reflect a mixture of multiple mechanisms, with planet-related signatures entangled in GCE and stellar evolution effects. Thus, Tcond trends require careful interpretation.","one_line_summary":"Condensation temperature trends in JWST planet-host stars are independent of stellar and planetary properties after GCE correction, indicating mixed origins from galactic evolution and stellar processes.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"That the strictly differential line-by-line analysis relative to the Sun combined with isochrone ages yields abundances and ages accurate enough to reliably detect or exclude dependencies on planetary properties in a sample of only 25 stars spanning a range of metallicities and temperatures.","pith_extraction_headline":"Condensation temperature trends in 25 planet-hosting stars show no dependence on stellar or planetary properties after galactic chemical evolution correction."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2604.18115/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"}