{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:U3LECBCL5BLFU5NWHWBVOKVYLS","short_pith_number":"pith:U3LECBCL","schema_version":"1.0","canonical_sha256":"a6d641044be8565a75b63d83572ab85c8a600cf9741aa44c4b8b3cd957d49861","source":{"kind":"arxiv","id":"0908.3312","version":1},"attestation_state":"computed","paper":{"title":"Stellar Encounters: A Stimulus for Disc Fragmentation?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Duncan Forgan (1), Institute for Astronomy, Ken Rice (1) ((1) SUPA, University of Edinburgh)","submitted_at":"2009-08-23T16:43:07Z","abstract_excerpt":"An interaction between a star-disc system and another star will perturb the disc, possibly resulting in a significant modification of the disc structure and its properties. It is still unclear if such an encounter can trigger fragmentation of the disc to form brown dwarfs or gas giant planets. This paper details high resolution Smoothed Particle Hydrodynamics (SPH) simulations investigating the influence of stellar encounters on disc dynamics. Star-star encounters (where the primary has a self-gravitating, marginally stable protostellar disc, and the secondary has no disc) were simulated with "},"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":"0908.3312","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-08-23T16:43:07Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"d6fcc339fe673f07f2f8d0364e7160800af6b0eb458d0ff1778f6ecadf89364c","abstract_canon_sha256":"31d9c5a413db138160737eee235e0763a7752b7b4a9d48b4640b179e6af59b94"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:12:23.821755Z","signature_b64":"1DgikT2+fhEJ6Rn6VDxLXRzTU4oYjCwx4DnsgFJJmfxs/enR55GmZ4lDPWODMg6jI3hgsiZrSlvKza6009bFCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a6d641044be8565a75b63d83572ab85c8a600cf9741aa44c4b8b3cd957d49861","last_reissued_at":"2026-05-18T02:12:23.820856Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:12:23.820856Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Stellar Encounters: A Stimulus for Disc Fragmentation?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Duncan Forgan (1), Institute for Astronomy, Ken Rice (1) ((1) SUPA, University of Edinburgh)","submitted_at":"2009-08-23T16:43:07Z","abstract_excerpt":"An interaction between a star-disc system and another star will perturb the disc, possibly resulting in a significant modification of the disc structure and its properties. It is still unclear if such an encounter can trigger fragmentation of the disc to form brown dwarfs or gas giant planets. This paper details high resolution Smoothed Particle Hydrodynamics (SPH) simulations investigating the influence of stellar encounters on disc dynamics. Star-star encounters (where the primary has a self-gravitating, marginally stable protostellar disc, and the secondary has no disc) were simulated with "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0908.3312","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":"0908.3312","created_at":"2026-05-18T02:12:23.821005+00:00"},{"alias_kind":"arxiv_version","alias_value":"0908.3312v1","created_at":"2026-05-18T02:12:23.821005+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0908.3312","created_at":"2026-05-18T02:12:23.821005+00:00"},{"alias_kind":"pith_short_12","alias_value":"U3LECBCL5BLF","created_at":"2026-05-18T12:26:02.257875+00:00"},{"alias_kind":"pith_short_16","alias_value":"U3LECBCL5BLFU5NW","created_at":"2026-05-18T12:26:02.257875+00:00"},{"alias_kind":"pith_short_8","alias_value":"U3LECBCL","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/U3LECBCL5BLFU5NWHWBVOKVYLS","json":"https://pith.science/pith/U3LECBCL5BLFU5NWHWBVOKVYLS.json","graph_json":"https://pith.science/api/pith-number/U3LECBCL5BLFU5NWHWBVOKVYLS/graph.json","events_json":"https://pith.science/api/pith-number/U3LECBCL5BLFU5NWHWBVOKVYLS/events.json","paper":"https://pith.science/paper/U3LECBCL"},"agent_actions":{"view_html":"https://pith.science/pith/U3LECBCL5BLFU5NWHWBVOKVYLS","download_json":"https://pith.science/pith/U3LECBCL5BLFU5NWHWBVOKVYLS.json","view_paper":"https://pith.science/paper/U3LECBCL","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0908.3312&json=true","fetch_graph":"https://pith.science/api/pith-number/U3LECBCL5BLFU5NWHWBVOKVYLS/graph.json","fetch_events":"https://pith.science/api/pith-number/U3LECBCL5BLFU5NWHWBVOKVYLS/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/U3LECBCL5BLFU5NWHWBVOKVYLS/action/timestamp_anchor","attest_storage":"https://pith.science/pith/U3LECBCL5BLFU5NWHWBVOKVYLS/action/storage_attestation","attest_author":"https://pith.science/pith/U3LECBCL5BLFU5NWHWBVOKVYLS/action/author_attestation","sign_citation":"https://pith.science/pith/U3LECBCL5BLFU5NWHWBVOKVYLS/action/citation_signature","submit_replication":"https://pith.science/pith/U3LECBCL5BLFU5NWHWBVOKVYLS/action/replication_record"}},"created_at":"2026-05-18T02:12:23.821005+00:00","updated_at":"2026-05-18T02:12:23.821005+00:00"}