{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:XYUWXJKOIBVO567SZXOLSTVGFI","short_pith_number":"pith:XYUWXJKO","schema_version":"1.0","canonical_sha256":"be296ba54e406aeefbf2cddcb94ea62a0c2f2daab0e9a171c0360e7b72b43cfa","source":{"kind":"arxiv","id":"0903.2122","version":1},"attestation_state":"computed","paper":{"title":"Triggered Star Formation and Evolution of T-Tauri stars in and around Bright-Rimmed Clouds","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. K. Pandey, B. C. Bhatt, D. K. Ojha, K. Ogura, Neelam Chauhan, P. S. Rawat, S. K. Ghosh","submitted_at":"2009-03-12T09:13:24Z","abstract_excerpt":"The aim of this paper is to quantitatively testify the \"{\\it small-scale sequential star formation}\" hypothesis in and around bright-rimmed clouds (BRCs). As a continuation of the recent attempt by Ogura et al. (2007, Paper I), we have carried out $BVI_{c}$ photometry of four more BRC aggregates along with deeper re-observations of 2 previously observed BRCs. Again quantitative age gradients are found in almost all the BRCs studied in the present work. Archival Spitzer/IRAC data also support this result. The global distribution of NIR excess stars in each HII region studied here clearly shows "},"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":"0903.2122","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-03-12T09:13:24Z","cross_cats_sorted":[],"title_canon_sha256":"676669e50d0b927825b4d225cf8c68609a477e0d617c547f21552c9aafc88df3","abstract_canon_sha256":"ef3a2d8ea93383918d356ce958a6e31774f263f55ca58fdcf8bf0bbd0305416f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:14:35.589104Z","signature_b64":"fVOJMw/xanvAfYKDd2scYzH/ELXQf1INTEyKNac9j/ji3D3NBWo9KgsQsR8V9beXOnbAAmcCZ5C88TiYkhGKAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"be296ba54e406aeefbf2cddcb94ea62a0c2f2daab0e9a171c0360e7b72b43cfa","last_reissued_at":"2026-05-18T02:14:35.588543Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:14:35.588543Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Triggered Star Formation and Evolution of T-Tauri stars in and around Bright-Rimmed Clouds","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. K. Pandey, B. C. Bhatt, D. K. Ojha, K. Ogura, Neelam Chauhan, P. S. Rawat, S. K. Ghosh","submitted_at":"2009-03-12T09:13:24Z","abstract_excerpt":"The aim of this paper is to quantitatively testify the \"{\\it small-scale sequential star formation}\" hypothesis in and around bright-rimmed clouds (BRCs). As a continuation of the recent attempt by Ogura et al. (2007, Paper I), we have carried out $BVI_{c}$ photometry of four more BRC aggregates along with deeper re-observations of 2 previously observed BRCs. Again quantitative age gradients are found in almost all the BRCs studied in the present work. Archival Spitzer/IRAC data also support this result. The global distribution of NIR excess stars in each HII region studied here clearly shows "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0903.2122","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":"0903.2122","created_at":"2026-05-18T02:14:35.588622+00:00"},{"alias_kind":"arxiv_version","alias_value":"0903.2122v1","created_at":"2026-05-18T02:14:35.588622+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0903.2122","created_at":"2026-05-18T02:14:35.588622+00:00"},{"alias_kind":"pith_short_12","alias_value":"XYUWXJKOIBVO","created_at":"2026-05-18T12:26:02.257875+00:00"},{"alias_kind":"pith_short_16","alias_value":"XYUWXJKOIBVO567S","created_at":"2026-05-18T12:26:02.257875+00:00"},{"alias_kind":"pith_short_8","alias_value":"XYUWXJKO","created_at":"2026-05-18T12:26:02.257875+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/XYUWXJKOIBVO567SZXOLSTVGFI","json":"https://pith.science/pith/XYUWXJKOIBVO567SZXOLSTVGFI.json","graph_json":"https://pith.science/api/pith-number/XYUWXJKOIBVO567SZXOLSTVGFI/graph.json","events_json":"https://pith.science/api/pith-number/XYUWXJKOIBVO567SZXOLSTVGFI/events.json","paper":"https://pith.science/paper/XYUWXJKO"},"agent_actions":{"view_html":"https://pith.science/pith/XYUWXJKOIBVO567SZXOLSTVGFI","download_json":"https://pith.science/pith/XYUWXJKOIBVO567SZXOLSTVGFI.json","view_paper":"https://pith.science/paper/XYUWXJKO","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0903.2122&json=true","fetch_graph":"https://pith.science/api/pith-number/XYUWXJKOIBVO567SZXOLSTVGFI/graph.json","fetch_events":"https://pith.science/api/pith-number/XYUWXJKOIBVO567SZXOLSTVGFI/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/XYUWXJKOIBVO567SZXOLSTVGFI/action/timestamp_anchor","attest_storage":"https://pith.science/pith/XYUWXJKOIBVO567SZXOLSTVGFI/action/storage_attestation","attest_author":"https://pith.science/pith/XYUWXJKOIBVO567SZXOLSTVGFI/action/author_attestation","sign_citation":"https://pith.science/pith/XYUWXJKOIBVO567SZXOLSTVGFI/action/citation_signature","submit_replication":"https://pith.science/pith/XYUWXJKOIBVO567SZXOLSTVGFI/action/replication_record"}},"created_at":"2026-05-18T02:14:35.588622+00:00","updated_at":"2026-05-18T02:14:35.588622+00:00"}