{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:OXA3KGGBJPAPGTJS3TVO2KD754","short_pith_number":"pith:OXA3KGGB","schema_version":"1.0","canonical_sha256":"75c1b518c14bc0f34d32dceaed287fef35a45f9aa7def366d2c54578cf6dec6f","source":{"kind":"arxiv","id":"1006.1130","version":1},"attestation_state":"computed","paper":{"title":"Spitzer's view on aromatic and aliphatic hydrocarbon emission in Herbig Ae stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A.G.G.M. Tielens, A. Juhash, B. Acke, G. Meeus, J. Bouwman, L.B.F.M. Waters, M.E. van den Ancker, Th. Henning","submitted_at":"2010-06-06T18:46:00Z","abstract_excerpt":"The chemistry of astronomical hydrocarbons, responsible for the well-known infrared emission features detected in a wide variety of targets, remains enigmatic. Here we focus on the group of young intermediate-mass Herbig Ae stars. We have analyzed the aliphatic and polycyclic aromatic hydrocarbon (PAH) emission features in the infrared spectra of a sample of 53 Herbig Ae stars, obtained with the Infrared Spectrograph aboard the Spitzer Space Telescope. We confirm that the PAH-to-stellar luminosity ratio is higher in targets with a flared dust disk. However, a few sources with a flattened dust "},"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":"1006.1130","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-06-06T18:46:00Z","cross_cats_sorted":[],"title_canon_sha256":"ee45496c1c06ef4cc4046e77b3302b5a1340f1494f7041fa1b8ae9c177cf6e70","abstract_canon_sha256":"ec964ef6fe66ab19f4b0e28894fabdbc72933718511d5acaf1d66bb37304992e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:06:56.965075Z","signature_b64":"S8fmRwO3OBSIwHNzcrdaJITm8hRrBPxK1TbDIzRTCnHDh8/rr7opXaWVws56b6CEnmwjNDQZgC2OhF2zxQieBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"75c1b518c14bc0f34d32dceaed287fef35a45f9aa7def366d2c54578cf6dec6f","last_reissued_at":"2026-05-18T02:06:56.964369Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:06:56.964369Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Spitzer's view on aromatic and aliphatic hydrocarbon emission in Herbig Ae stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A.G.G.M. Tielens, A. Juhash, B. Acke, G. Meeus, J. Bouwman, L.B.F.M. Waters, M.E. van den Ancker, Th. Henning","submitted_at":"2010-06-06T18:46:00Z","abstract_excerpt":"The chemistry of astronomical hydrocarbons, responsible for the well-known infrared emission features detected in a wide variety of targets, remains enigmatic. Here we focus on the group of young intermediate-mass Herbig Ae stars. We have analyzed the aliphatic and polycyclic aromatic hydrocarbon (PAH) emission features in the infrared spectra of a sample of 53 Herbig Ae stars, obtained with the Infrared Spectrograph aboard the Spitzer Space Telescope. We confirm that the PAH-to-stellar luminosity ratio is higher in targets with a flared dust disk. However, a few sources with a flattened dust "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1006.1130","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":"1006.1130","created_at":"2026-05-18T02:06:56.964481+00:00"},{"alias_kind":"arxiv_version","alias_value":"1006.1130v1","created_at":"2026-05-18T02:06:56.964481+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1006.1130","created_at":"2026-05-18T02:06:56.964481+00:00"},{"alias_kind":"pith_short_12","alias_value":"OXA3KGGBJPAP","created_at":"2026-05-18T12:26:12.377268+00:00"},{"alias_kind":"pith_short_16","alias_value":"OXA3KGGBJPAPGTJS","created_at":"2026-05-18T12:26:12.377268+00:00"},{"alias_kind":"pith_short_8","alias_value":"OXA3KGGB","created_at":"2026-05-18T12:26:12.377268+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/OXA3KGGBJPAPGTJS3TVO2KD754","json":"https://pith.science/pith/OXA3KGGBJPAPGTJS3TVO2KD754.json","graph_json":"https://pith.science/api/pith-number/OXA3KGGBJPAPGTJS3TVO2KD754/graph.json","events_json":"https://pith.science/api/pith-number/OXA3KGGBJPAPGTJS3TVO2KD754/events.json","paper":"https://pith.science/paper/OXA3KGGB"},"agent_actions":{"view_html":"https://pith.science/pith/OXA3KGGBJPAPGTJS3TVO2KD754","download_json":"https://pith.science/pith/OXA3KGGBJPAPGTJS3TVO2KD754.json","view_paper":"https://pith.science/paper/OXA3KGGB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1006.1130&json=true","fetch_graph":"https://pith.science/api/pith-number/OXA3KGGBJPAPGTJS3TVO2KD754/graph.json","fetch_events":"https://pith.science/api/pith-number/OXA3KGGBJPAPGTJS3TVO2KD754/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/OXA3KGGBJPAPGTJS3TVO2KD754/action/timestamp_anchor","attest_storage":"https://pith.science/pith/OXA3KGGBJPAPGTJS3TVO2KD754/action/storage_attestation","attest_author":"https://pith.science/pith/OXA3KGGBJPAPGTJS3TVO2KD754/action/author_attestation","sign_citation":"https://pith.science/pith/OXA3KGGBJPAPGTJS3TVO2KD754/action/citation_signature","submit_replication":"https://pith.science/pith/OXA3KGGBJPAPGTJS3TVO2KD754/action/replication_record"}},"created_at":"2026-05-18T02:06:56.964481+00:00","updated_at":"2026-05-18T02:06:56.964481+00:00"}