{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:YGNKH3QIWICUEGWCZNRMZFGMM7","short_pith_number":"pith:YGNKH3QI","schema_version":"1.0","canonical_sha256":"c19aa3ee08b205421ac2cb62cc94cc67f3e62c3043bc5dcddd63b75e89cf83b3","source":{"kind":"arxiv","id":"1410.6175","version":1},"attestation_state":"computed","paper":{"title":"Instability of Magnetized Ionization Fronts Surrounding H II Regions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Jeong-Gyu Kim, Korea), Woong-Tae Kim (Seoul National University","submitted_at":"2014-10-22T20:15:14Z","abstract_excerpt":"An ionization front (IF) surrounding an H II region is a sharp interface where a cold neutral gas makes transition to a warm ionized phase by absorbing UV photons from central stars. We investigate the instability of a plane-parallel D-type IF threaded by parallel magnetic fields, by neglecting the effects of recombination within the ionized gas. We find that weak D-type IFs always have the post-IF magnetosonic Mach number $\\mathcal{M}_{\\rm M2} \\leq 1$. For such fronts, magnetic fields increase the maximum propagation speed of the IFs, while reducing the expansion factor $\\alpha$ by a factor o"},"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":"1410.6175","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-10-22T20:15:14Z","cross_cats_sorted":[],"title_canon_sha256":"ddc6b8b6e79f5f923c57b2c0608de47d00df10c1b0a9386904d3743c63312c91","abstract_canon_sha256":"8d23af6c04f3e7d9d354666f02cda9011ab6e01f6a5d8863f12a83895409fbcd"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:41:40.791655Z","signature_b64":"AdkgaC0evNT+kWmWdHh9qFsiMSMnSjrvhwrKZKMyiVqOoafgzH0O5F37HBkvxA9TFEAbe43c9KtepVnnIXgjAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c19aa3ee08b205421ac2cb62cc94cc67f3e62c3043bc5dcddd63b75e89cf83b3","last_reissued_at":"2026-05-18T01:41:40.791055Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:41:40.791055Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Instability of Magnetized Ionization Fronts Surrounding H II Regions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Jeong-Gyu Kim, Korea), Woong-Tae Kim (Seoul National University","submitted_at":"2014-10-22T20:15:14Z","abstract_excerpt":"An ionization front (IF) surrounding an H II region is a sharp interface where a cold neutral gas makes transition to a warm ionized phase by absorbing UV photons from central stars. We investigate the instability of a plane-parallel D-type IF threaded by parallel magnetic fields, by neglecting the effects of recombination within the ionized gas. We find that weak D-type IFs always have the post-IF magnetosonic Mach number $\\mathcal{M}_{\\rm M2} \\leq 1$. For such fronts, magnetic fields increase the maximum propagation speed of the IFs, while reducing the expansion factor $\\alpha$ by a factor o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.6175","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":""},"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":"1410.6175","created_at":"2026-05-18T01:41:40.791122+00:00"},{"alias_kind":"arxiv_version","alias_value":"1410.6175v1","created_at":"2026-05-18T01:41:40.791122+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.6175","created_at":"2026-05-18T01:41:40.791122+00:00"},{"alias_kind":"pith_short_12","alias_value":"YGNKH3QIWICU","created_at":"2026-05-18T12:28:57.508820+00:00"},{"alias_kind":"pith_short_16","alias_value":"YGNKH3QIWICUEGWC","created_at":"2026-05-18T12:28:57.508820+00:00"},{"alias_kind":"pith_short_8","alias_value":"YGNKH3QI","created_at":"2026-05-18T12:28:57.508820+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/YGNKH3QIWICUEGWCZNRMZFGMM7","json":"https://pith.science/pith/YGNKH3QIWICUEGWCZNRMZFGMM7.json","graph_json":"https://pith.science/api/pith-number/YGNKH3QIWICUEGWCZNRMZFGMM7/graph.json","events_json":"https://pith.science/api/pith-number/YGNKH3QIWICUEGWCZNRMZFGMM7/events.json","paper":"https://pith.science/paper/YGNKH3QI"},"agent_actions":{"view_html":"https://pith.science/pith/YGNKH3QIWICUEGWCZNRMZFGMM7","download_json":"https://pith.science/pith/YGNKH3QIWICUEGWCZNRMZFGMM7.json","view_paper":"https://pith.science/paper/YGNKH3QI","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1410.6175&json=true","fetch_graph":"https://pith.science/api/pith-number/YGNKH3QIWICUEGWCZNRMZFGMM7/graph.json","fetch_events":"https://pith.science/api/pith-number/YGNKH3QIWICUEGWCZNRMZFGMM7/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/YGNKH3QIWICUEGWCZNRMZFGMM7/action/timestamp_anchor","attest_storage":"https://pith.science/pith/YGNKH3QIWICUEGWCZNRMZFGMM7/action/storage_attestation","attest_author":"https://pith.science/pith/YGNKH3QIWICUEGWCZNRMZFGMM7/action/author_attestation","sign_citation":"https://pith.science/pith/YGNKH3QIWICUEGWCZNRMZFGMM7/action/citation_signature","submit_replication":"https://pith.science/pith/YGNKH3QIWICUEGWCZNRMZFGMM7/action/replication_record"}},"created_at":"2026-05-18T01:41:40.791122+00:00","updated_at":"2026-05-18T01:41:40.791122+00:00"}