{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:JETVR5YLXUBMLVMLOY4UOOFGWB","short_pith_number":"pith:JETVR5YL","schema_version":"1.0","canonical_sha256":"492758f70bbd02c5d58b76394738a6b06c561f09c379b728733cace7f7ded6e1","source":{"kind":"arxiv","id":"1509.08642","version":1},"attestation_state":"computed","paper":{"title":"Chemical evolution of the HC3N and N2H+ molecules in dense cores of the Vela C giant molecular cloud complex","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Ken'ichi Tatematsu, Kosuke Fujii, Minho Choi, Norikazu Mizuno, Patricio Sanhueza, Quang Nguyen Luong, Satoshi Ohashi, Tomoya Hirota","submitted_at":"2015-09-29T08:50:53Z","abstract_excerpt":"We have observed the HC3N (J=10-9) and N2H+ (J=1-0) lines toward the Vela C molecular clouds with the Mopra 22 m telescope to study chemical characteristics of dense cores. The intensity distributions of these molecules are similar to each other at an angular resolution of 53\", corresponding to 0.19 pc suggesting that these molecules trace the same dense cores. We identified 25 local peaks in the velocity-integrated intensity maps of the HC3N and/or N2H+ emission. Assuming LTE conditions, we calculated the column densities of these molecules and found a tendency that N2H+/HC3N abundance ratio "},"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":"1509.08642","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-09-29T08:50:53Z","cross_cats_sorted":[],"title_canon_sha256":"ec4204008d73538b395270fb8484ba2db5310428f35f8c1562ec75c19c71a237","abstract_canon_sha256":"b63727c0da125e29a92ab5bf9898abd517da3f6399828066f776a29ec1d8a8eb"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:26:41.314593Z","signature_b64":"F7zBVXLM6hMmW8E1xJw8D3FgpeVFkC1vgSTybodXM/0mVSx9zUDUDP8IzsR947CjXeDGvREJ/EaNQEZTBNt6Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"492758f70bbd02c5d58b76394738a6b06c561f09c379b728733cace7f7ded6e1","last_reissued_at":"2026-05-18T01:26:41.313929Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:26:41.313929Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Chemical evolution of the HC3N and N2H+ molecules in dense cores of the Vela C giant molecular cloud complex","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Ken'ichi Tatematsu, Kosuke Fujii, Minho Choi, Norikazu Mizuno, Patricio Sanhueza, Quang Nguyen Luong, Satoshi Ohashi, Tomoya Hirota","submitted_at":"2015-09-29T08:50:53Z","abstract_excerpt":"We have observed the HC3N (J=10-9) and N2H+ (J=1-0) lines toward the Vela C molecular clouds with the Mopra 22 m telescope to study chemical characteristics of dense cores. The intensity distributions of these molecules are similar to each other at an angular resolution of 53\", corresponding to 0.19 pc suggesting that these molecules trace the same dense cores. We identified 25 local peaks in the velocity-integrated intensity maps of the HC3N and/or N2H+ emission. Assuming LTE conditions, we calculated the column densities of these molecules and found a tendency that N2H+/HC3N abundance ratio "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.08642","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":"1509.08642","created_at":"2026-05-18T01:26:41.314029+00:00"},{"alias_kind":"arxiv_version","alias_value":"1509.08642v1","created_at":"2026-05-18T01:26:41.314029+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.08642","created_at":"2026-05-18T01:26:41.314029+00:00"},{"alias_kind":"pith_short_12","alias_value":"JETVR5YLXUBM","created_at":"2026-05-18T12:29:27.538025+00:00"},{"alias_kind":"pith_short_16","alias_value":"JETVR5YLXUBMLVML","created_at":"2026-05-18T12:29:27.538025+00:00"},{"alias_kind":"pith_short_8","alias_value":"JETVR5YL","created_at":"2026-05-18T12:29:27.538025+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/JETVR5YLXUBMLVMLOY4UOOFGWB","json":"https://pith.science/pith/JETVR5YLXUBMLVMLOY4UOOFGWB.json","graph_json":"https://pith.science/api/pith-number/JETVR5YLXUBMLVMLOY4UOOFGWB/graph.json","events_json":"https://pith.science/api/pith-number/JETVR5YLXUBMLVMLOY4UOOFGWB/events.json","paper":"https://pith.science/paper/JETVR5YL"},"agent_actions":{"view_html":"https://pith.science/pith/JETVR5YLXUBMLVMLOY4UOOFGWB","download_json":"https://pith.science/pith/JETVR5YLXUBMLVMLOY4UOOFGWB.json","view_paper":"https://pith.science/paper/JETVR5YL","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1509.08642&json=true","fetch_graph":"https://pith.science/api/pith-number/JETVR5YLXUBMLVMLOY4UOOFGWB/graph.json","fetch_events":"https://pith.science/api/pith-number/JETVR5YLXUBMLVMLOY4UOOFGWB/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/JETVR5YLXUBMLVMLOY4UOOFGWB/action/timestamp_anchor","attest_storage":"https://pith.science/pith/JETVR5YLXUBMLVMLOY4UOOFGWB/action/storage_attestation","attest_author":"https://pith.science/pith/JETVR5YLXUBMLVMLOY4UOOFGWB/action/author_attestation","sign_citation":"https://pith.science/pith/JETVR5YLXUBMLVMLOY4UOOFGWB/action/citation_signature","submit_replication":"https://pith.science/pith/JETVR5YLXUBMLVMLOY4UOOFGWB/action/replication_record"}},"created_at":"2026-05-18T01:26:41.314029+00:00","updated_at":"2026-05-18T01:26:41.314029+00:00"}