{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2022:O3YWBL7ZVMSADOJ6WB5KW7WN4R","short_pith_number":"pith:O3YWBL7Z","schema_version":"1.0","canonical_sha256":"76f160aff9ab2401b93eb07aab7ecde47f92ec41fc523f1d976b9e7a037c8bc9","source":{"kind":"arxiv","id":"2209.15548","version":1},"attestation_state":"computed","paper":{"title":"The Roasting Marshmallows Program with IGRINS on Gemini South I: Composition and Climate of the Ultra Hot Jupiter WASP-18 b","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Eliza M.-R. Kempton, Emily Rauscher, Evgenya Shkolnik, Gregory N. Mace, Jacob L. Bean, Jayne L. Birkby, Jean-Michel D\\'esert, Jennifer Patience, Jonathan J. Fortney, Joost P. Wardenier, Joseph A. Zalesky, Lisa Dang, Lorenzo Pino, Luis Welbanks, Matteo Brogi, Megan Mansfield, Michael R. Line, Nicolas B. Cowan, Peter Smith, Siddharth Gandhi, Vanessa Emeka-Okafor, Vivien Parmentier","submitted_at":"2022-09-30T15:50:07Z","abstract_excerpt":"We present high-resolution dayside thermal emission observations of the exoplanet WASP-18b using IGRINS on Gemini South. We remove stellar and telluric signatures using standard algorithms, and we extract the planet signal via cross correlation with model spectra. We detect the atmosphere of WASP-18b at a signal-to-noise ratio (SNR) of 5.9 using a full chemistry model, measure H2O (SNR=3.3), CO (SNR=4.0), and OH (SNR=4.8) individually, and confirm previous claims of a thermal inversion layer. The three species are confidently detected (>4$\\sigma$) with a Bayesian inference framework, which we "},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2209.15548","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-09-30T15:50:07Z","cross_cats_sorted":[],"title_canon_sha256":"9783be9c6d95279aea122161ce61529519de681124e69fe4d9a77329fa6cc3f3","abstract_canon_sha256":"a7a9d98459bf43d88ece41098a26c8b92445c02f2598921f0ec6cb73b5cc51de"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:41:29.440142Z","signature_b64":"RdnNxAadwdzOQutYO+0v4vJhH6C+rS/ZaHTDNs6rVhDvNkRpU5vRjb+6oL7ZTSVnFWMM5ZAoMP5rOtDGMPtnAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"76f160aff9ab2401b93eb07aab7ecde47f92ec41fc523f1d976b9e7a037c8bc9","last_reissued_at":"2026-07-05T05:41:29.439714Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:41:29.439714Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Roasting Marshmallows Program with IGRINS on Gemini South I: Composition and Climate of the Ultra Hot Jupiter WASP-18 b","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Eliza M.-R. Kempton, Emily Rauscher, Evgenya Shkolnik, Gregory N. Mace, Jacob L. Bean, Jayne L. Birkby, Jean-Michel D\\'esert, Jennifer Patience, Jonathan J. Fortney, Joost P. Wardenier, Joseph A. Zalesky, Lisa Dang, Lorenzo Pino, Luis Welbanks, Matteo Brogi, Megan Mansfield, Michael R. Line, Nicolas B. Cowan, Peter Smith, Siddharth Gandhi, Vanessa Emeka-Okafor, Vivien Parmentier","submitted_at":"2022-09-30T15:50:07Z","abstract_excerpt":"We present high-resolution dayside thermal emission observations of the exoplanet WASP-18b using IGRINS on Gemini South. We remove stellar and telluric signatures using standard algorithms, and we extract the planet signal via cross correlation with model spectra. We detect the atmosphere of WASP-18b at a signal-to-noise ratio (SNR) of 5.9 using a full chemistry model, measure H2O (SNR=3.3), CO (SNR=4.0), and OH (SNR=4.8) individually, and confirm previous claims of a thermal inversion layer. The three species are confidently detected (>4$\\sigma$) with a Bayesian inference framework, which we "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.15548","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/2209.15548/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2209.15548","created_at":"2026-07-05T05:41:29.439779+00:00"},{"alias_kind":"arxiv_version","alias_value":"2209.15548v1","created_at":"2026-07-05T05:41:29.439779+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.15548","created_at":"2026-07-05T05:41:29.439779+00:00"},{"alias_kind":"pith_short_12","alias_value":"O3YWBL7ZVMSA","created_at":"2026-07-05T05:41:29.439779+00:00"},{"alias_kind":"pith_short_16","alias_value":"O3YWBL7ZVMSADOJ6","created_at":"2026-07-05T05:41:29.439779+00:00"},{"alias_kind":"pith_short_8","alias_value":"O3YWBL7Z","created_at":"2026-07-05T05:41:29.439779+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/O3YWBL7ZVMSADOJ6WB5KW7WN4R","json":"https://pith.science/pith/O3YWBL7ZVMSADOJ6WB5KW7WN4R.json","graph_json":"https://pith.science/api/pith-number/O3YWBL7ZVMSADOJ6WB5KW7WN4R/graph.json","events_json":"https://pith.science/api/pith-number/O3YWBL7ZVMSADOJ6WB5KW7WN4R/events.json","paper":"https://pith.science/paper/O3YWBL7Z"},"agent_actions":{"view_html":"https://pith.science/pith/O3YWBL7ZVMSADOJ6WB5KW7WN4R","download_json":"https://pith.science/pith/O3YWBL7ZVMSADOJ6WB5KW7WN4R.json","view_paper":"https://pith.science/paper/O3YWBL7Z","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2209.15548&json=true","fetch_graph":"https://pith.science/api/pith-number/O3YWBL7ZVMSADOJ6WB5KW7WN4R/graph.json","fetch_events":"https://pith.science/api/pith-number/O3YWBL7ZVMSADOJ6WB5KW7WN4R/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/O3YWBL7ZVMSADOJ6WB5KW7WN4R/action/timestamp_anchor","attest_storage":"https://pith.science/pith/O3YWBL7ZVMSADOJ6WB5KW7WN4R/action/storage_attestation","attest_author":"https://pith.science/pith/O3YWBL7ZVMSADOJ6WB5KW7WN4R/action/author_attestation","sign_citation":"https://pith.science/pith/O3YWBL7ZVMSADOJ6WB5KW7WN4R/action/citation_signature","submit_replication":"https://pith.science/pith/O3YWBL7ZVMSADOJ6WB5KW7WN4R/action/replication_record"}},"created_at":"2026-07-05T05:41:29.439779+00:00","updated_at":"2026-07-05T05:41:29.439779+00:00"}