{"paper":{"title":"Refractory and Volatile Species in the UV-to-IR Transmission Spectrum of Ultra-hot Jupiter WASP-178b with HST and JWST","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Am\\'elie Gressier, Brian Kehoe-Seamons, Ceiligh Cacho-Negrete, Cyril Gapp, David K. Sing, Hannah R. Wakeford, Henrique Reggiani, Jamie Wilson, Joshua D. Lothringer, Katherine A. Bennett, Kevin B. Stevenson, Kevin C. Schlaufman, Neale Gibson, N\\'estor Espinoza, Nikolay Nikolov, Patrick McCreery, Peter Hauschildt, Seti Norris, Thomas M. Evans-Soma, Zafar Rustamkulov","submitted_at":"2025-03-19T17:46:06Z","abstract_excerpt":"The atmospheres of ultra-hot Jupiters are unique compared to other planets because of the presence of both refractory and volatile gaseous species, enabling a new lens to constrain a planet's composition, chemistry, and formation. WASP-178b is one such ultra-hot Jupiter that was recently found to exhibit enormous NUV absorption between 0.2 and 0.4 $\\mu$m from some combination of Fe+, Mg, and SiO. Here, we present new infrared observations of WASP-178b with HST/WFC3 and JWST/NIRSpec/G395H, providing novel measurements of the volatile species H$_2$O and CO in WASP-178b's atmosphere. Atmospheric "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.15472","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/2503.15472/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"}