{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:HAZQMBL3XA7UH6IBNH5TNDWVNZ","short_pith_number":"pith:HAZQMBL3","schema_version":"1.0","canonical_sha256":"383306057bb83f43f90169fb368ed56e6a406f16a2d7491807efaeab50a112a3","source":{"kind":"arxiv","id":"2407.07359","version":1},"attestation_state":"computed","paper":{"title":"ALMA-IMF XIV: Free-Free Templates Derived from H$41\\alpha$ and Ionized Gas Content in Fifteen Massive Protoclusters","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"Adam Ginsburg, Allison P. M. Towner, Amelia M. Stutz, Anthony P. Whitworth, Antoine Gusdorf, Atanu Koley, Daniel J. D\\'iaz-Gonz\\'alez, Fabien Louvet, Fr\\'ed\\'erique Motte, Friedrich Wyrowski, Hong-Li Liu, Javiera Salinas, Jonathan Braine, Karl M. Menten, Leonardo Bronfman, Manuel Fern\\'andez-L\\'opez, M\\'elanie Armante, M\\'elisse Bonfand, Nichol Cunningham, Patricio Sanhueza, Pierre Dell'Ova, Roberto Galv\\'an-Madrid, Rodrigo H. \\'Alvarez-Guti\\'errez, Rudy Rivera-Soto, Sylvain Bontemps, Tapas Baug, Thomas Nony, Timea Csengeri","submitted_at":"2024-07-10T04:33:17Z","abstract_excerpt":"We use the H$41\\alpha$ recombination line to create templates of the millimeter free-free emission in the ALMA-IMF continuum maps, which allows to separate it from dust emission. This method complements spectral-index information and extrapolation from centimeter wavelength maps. We use the derived maps to estimate the properties of up to 34 HII regions across the ALMA-IMF protoclusters. The hydrogen ionizing-photon rate $Q_0$ and spectral types follow the evolutionary trend proposed by Motte et al. The youngest protoclusters lack detectable ionized gas, followed by protoclusters with increasi"},"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":"2407.07359","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-07-10T04:33:17Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"25caff5d08eb5695137b51d908e0da6f812ecd8ba0dbd647d1b4fd1ca3f08987","abstract_canon_sha256":"5fe2d5f8cb4984493bedba5da7c872d743c205fdda65e6bdebfe449dc36e6342"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:42:10.411548Z","signature_b64":"fMicHBnmuEC5DEOjCMSfQHfVlDCKB0WjpmYwTYhFUu0giNh3DYOyJmW9EhqZMXf92dsl1tQ/g+Zl8IOfRYIyDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"383306057bb83f43f90169fb368ed56e6a406f16a2d7491807efaeab50a112a3","last_reissued_at":"2026-07-05T08:42:10.411075Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:42:10.411075Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"ALMA-IMF XIV: Free-Free Templates Derived from H$41\\alpha$ and Ionized Gas Content in Fifteen Massive Protoclusters","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"Adam Ginsburg, Allison P. M. Towner, Amelia M. Stutz, Anthony P. Whitworth, Antoine Gusdorf, Atanu Koley, Daniel J. D\\'iaz-Gonz\\'alez, Fabien Louvet, Fr\\'ed\\'erique Motte, Friedrich Wyrowski, Hong-Li Liu, Javiera Salinas, Jonathan Braine, Karl M. Menten, Leonardo Bronfman, Manuel Fern\\'andez-L\\'opez, M\\'elanie Armante, M\\'elisse Bonfand, Nichol Cunningham, Patricio Sanhueza, Pierre Dell'Ova, Roberto Galv\\'an-Madrid, Rodrigo H. \\'Alvarez-Guti\\'errez, Rudy Rivera-Soto, Sylvain Bontemps, Tapas Baug, Thomas Nony, Timea Csengeri","submitted_at":"2024-07-10T04:33:17Z","abstract_excerpt":"We use the H$41\\alpha$ recombination line to create templates of the millimeter free-free emission in the ALMA-IMF continuum maps, which allows to separate it from dust emission. This method complements spectral-index information and extrapolation from centimeter wavelength maps. We use the derived maps to estimate the properties of up to 34 HII regions across the ALMA-IMF protoclusters. The hydrogen ionizing-photon rate $Q_0$ and spectral types follow the evolutionary trend proposed by Motte et al. The youngest protoclusters lack detectable ionized gas, followed by protoclusters with increasi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.07359","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/2407.07359/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":"2407.07359","created_at":"2026-07-05T08:42:10.411142+00:00"},{"alias_kind":"arxiv_version","alias_value":"2407.07359v1","created_at":"2026-07-05T08:42:10.411142+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.07359","created_at":"2026-07-05T08:42:10.411142+00:00"},{"alias_kind":"pith_short_12","alias_value":"HAZQMBL3XA7U","created_at":"2026-07-05T08:42:10.411142+00:00"},{"alias_kind":"pith_short_16","alias_value":"HAZQMBL3XA7UH6IB","created_at":"2026-07-05T08:42:10.411142+00:00"},{"alias_kind":"pith_short_8","alias_value":"HAZQMBL3","created_at":"2026-07-05T08:42:10.411142+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2505.07764","citing_title":"Why is the Star Formation Rate Proportional to Dense Gas Mass?","ref_index":19,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/HAZQMBL3XA7UH6IBNH5TNDWVNZ","json":"https://pith.science/pith/HAZQMBL3XA7UH6IBNH5TNDWVNZ.json","graph_json":"https://pith.science/api/pith-number/HAZQMBL3XA7UH6IBNH5TNDWVNZ/graph.json","events_json":"https://pith.science/api/pith-number/HAZQMBL3XA7UH6IBNH5TNDWVNZ/events.json","paper":"https://pith.science/paper/HAZQMBL3"},"agent_actions":{"view_html":"https://pith.science/pith/HAZQMBL3XA7UH6IBNH5TNDWVNZ","download_json":"https://pith.science/pith/HAZQMBL3XA7UH6IBNH5TNDWVNZ.json","view_paper":"https://pith.science/paper/HAZQMBL3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2407.07359&json=true","fetch_graph":"https://pith.science/api/pith-number/HAZQMBL3XA7UH6IBNH5TNDWVNZ/graph.json","fetch_events":"https://pith.science/api/pith-number/HAZQMBL3XA7UH6IBNH5TNDWVNZ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/HAZQMBL3XA7UH6IBNH5TNDWVNZ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/HAZQMBL3XA7UH6IBNH5TNDWVNZ/action/storage_attestation","attest_author":"https://pith.science/pith/HAZQMBL3XA7UH6IBNH5TNDWVNZ/action/author_attestation","sign_citation":"https://pith.science/pith/HAZQMBL3XA7UH6IBNH5TNDWVNZ/action/citation_signature","submit_replication":"https://pith.science/pith/HAZQMBL3XA7UH6IBNH5TNDWVNZ/action/replication_record"}},"created_at":"2026-07-05T08:42:10.411142+00:00","updated_at":"2026-07-05T08:42:10.411142+00:00"}