{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:VGJALFIQZWIRMEVCMABWPKIDJW","short_pith_number":"pith:VGJALFIQ","schema_version":"1.0","canonical_sha256":"a992059510cd911612a2600367a9034d839306f957e197fcbd32c9d4f612dbbd","source":{"kind":"arxiv","id":"1008.1950","version":4},"attestation_state":"computed","paper":{"title":"Aperture Synthesis Imaging of V892 Tau and PV Cep: Disk Evolution","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Murad Hamidouche","submitted_at":"2010-08-11T16:15:06Z","abstract_excerpt":"I present a study of two Herbig Ae stars that are in completely different evolutionary stages: V892 Tau and PV Cep. Using sub arc-second interferometric observations obtained with the Combined Array for Research in Millimeter-wave Astronomy (CARMA) at the 1.3 and 2.7 mm wavelengths, I have for the first time resolved their disks. I deduce that the 5 Myr old V892 Tau has a low dust opacity index $\\beta$=1.1 and a disk mass of 0.03 $\\msun$. These values correspond to the growth of its dust into large up to centimeters size structures. In contrast, the very young (a few 10$^5$yrs) PV Cep has a qu"},"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":"1008.1950","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-08-11T16:15:06Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"78aa4d5d155cfa358fb7c7528c879b6577819ec92cf40095dd8239b9c6183b56","abstract_canon_sha256":"c8cc343560ec5a93c5fb18fd339d37a933d2ccb886a02c48ec118aee459a137d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:05:49.325585Z","signature_b64":"6O/vpQnTvYoY/Q3zKqGFq2OzF9pDEkoIVI/ZyutcZ0Sl5+2XqFcjls6cc3c2syZQUaoioMa++DDvELFoHUvQAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a992059510cd911612a2600367a9034d839306f957e197fcbd32c9d4f612dbbd","last_reissued_at":"2026-05-18T02:05:49.324918Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:05:49.324918Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Aperture Synthesis Imaging of V892 Tau and PV Cep: Disk Evolution","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Murad Hamidouche","submitted_at":"2010-08-11T16:15:06Z","abstract_excerpt":"I present a study of two Herbig Ae stars that are in completely different evolutionary stages: V892 Tau and PV Cep. Using sub arc-second interferometric observations obtained with the Combined Array for Research in Millimeter-wave Astronomy (CARMA) at the 1.3 and 2.7 mm wavelengths, I have for the first time resolved their disks. I deduce that the 5 Myr old V892 Tau has a low dust opacity index $\\beta$=1.1 and a disk mass of 0.03 $\\msun$. These values correspond to the growth of its dust into large up to centimeters size structures. In contrast, the very young (a few 10$^5$yrs) PV Cep has a qu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1008.1950","kind":"arxiv","version":4},"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":"1008.1950","created_at":"2026-05-18T02:05:49.325007+00:00"},{"alias_kind":"arxiv_version","alias_value":"1008.1950v4","created_at":"2026-05-18T02:05:49.325007+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1008.1950","created_at":"2026-05-18T02:05:49.325007+00:00"},{"alias_kind":"pith_short_12","alias_value":"VGJALFIQZWIR","created_at":"2026-05-18T12:26:15.391820+00:00"},{"alias_kind":"pith_short_16","alias_value":"VGJALFIQZWIRMEVC","created_at":"2026-05-18T12:26:15.391820+00:00"},{"alias_kind":"pith_short_8","alias_value":"VGJALFIQ","created_at":"2026-05-18T12:26:15.391820+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/VGJALFIQZWIRMEVCMABWPKIDJW","json":"https://pith.science/pith/VGJALFIQZWIRMEVCMABWPKIDJW.json","graph_json":"https://pith.science/api/pith-number/VGJALFIQZWIRMEVCMABWPKIDJW/graph.json","events_json":"https://pith.science/api/pith-number/VGJALFIQZWIRMEVCMABWPKIDJW/events.json","paper":"https://pith.science/paper/VGJALFIQ"},"agent_actions":{"view_html":"https://pith.science/pith/VGJALFIQZWIRMEVCMABWPKIDJW","download_json":"https://pith.science/pith/VGJALFIQZWIRMEVCMABWPKIDJW.json","view_paper":"https://pith.science/paper/VGJALFIQ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1008.1950&json=true","fetch_graph":"https://pith.science/api/pith-number/VGJALFIQZWIRMEVCMABWPKIDJW/graph.json","fetch_events":"https://pith.science/api/pith-number/VGJALFIQZWIRMEVCMABWPKIDJW/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/VGJALFIQZWIRMEVCMABWPKIDJW/action/timestamp_anchor","attest_storage":"https://pith.science/pith/VGJALFIQZWIRMEVCMABWPKIDJW/action/storage_attestation","attest_author":"https://pith.science/pith/VGJALFIQZWIRMEVCMABWPKIDJW/action/author_attestation","sign_citation":"https://pith.science/pith/VGJALFIQZWIRMEVCMABWPKIDJW/action/citation_signature","submit_replication":"https://pith.science/pith/VGJALFIQZWIRMEVCMABWPKIDJW/action/replication_record"}},"created_at":"2026-05-18T02:05:49.325007+00:00","updated_at":"2026-05-18T02:05:49.325007+00:00"}