{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:EKRFZMCQAHKGKAUE7ZX5VBHYXN","short_pith_number":"pith:EKRFZMCQ","schema_version":"1.0","canonical_sha256":"22a25cb05001d4650284fe6fda84f8bb72afbddf8c70223e6d168b7a343e1dfc","source":{"kind":"arxiv","id":"1605.02764","version":1},"attestation_state":"computed","paper":{"title":"Dynamics of Circumstellar Disks III: The case of GG Tau A","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Andrew F. Nelson, F. Marzari","submitted_at":"2016-05-09T20:29:44Z","abstract_excerpt":"(abridged) We present 2-dimensional hydrodynamic simulations using the Smoothed Particle Hydrodynamic (SPH) code, VINE, to model a self-gravitating binary system similar to the GG Tau A system. We simulate systems configured with semi-major axes of either $a=62$~AU (`wide') or $a=32$~AU (`close'), and with eccentricity of either $e=0$ or $e=0.3$. Strong spiral structures are generated with large material streams extending inwards. A small fraction accretes onto the circumstellar disks, with most returning to the torus. Structures also propagate outwards, generating net outwards mass flow and e"},"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":"1605.02764","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-05-09T20:29:44Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"627bf57f399aa0df037816732bbe80a2a896a0872c0c78b22b612625a7e40bc7","abstract_canon_sha256":"706cc254fe046cc68046bf3027a280db47ece0a371c405137e931616c2e8b78f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:08:41.452480Z","signature_b64":"T3MD/wylZ8YJ2z+bVRs7DXlIsvPznGl2kZsYQihtCxheGtvxmUAXO1vFzu9mttNzwPOeQ7G8VRx0GhhW+xp+DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"22a25cb05001d4650284fe6fda84f8bb72afbddf8c70223e6d168b7a343e1dfc","last_reissued_at":"2026-05-18T01:08:41.451905Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:08:41.451905Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Dynamics of Circumstellar Disks III: The case of GG Tau A","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Andrew F. Nelson, F. Marzari","submitted_at":"2016-05-09T20:29:44Z","abstract_excerpt":"(abridged) We present 2-dimensional hydrodynamic simulations using the Smoothed Particle Hydrodynamic (SPH) code, VINE, to model a self-gravitating binary system similar to the GG Tau A system. We simulate systems configured with semi-major axes of either $a=62$~AU (`wide') or $a=32$~AU (`close'), and with eccentricity of either $e=0$ or $e=0.3$. Strong spiral structures are generated with large material streams extending inwards. A small fraction accretes onto the circumstellar disks, with most returning to the torus. Structures also propagate outwards, generating net outwards mass flow and e"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.02764","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":"1605.02764","created_at":"2026-05-18T01:08:41.451984+00:00"},{"alias_kind":"arxiv_version","alias_value":"1605.02764v1","created_at":"2026-05-18T01:08:41.451984+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.02764","created_at":"2026-05-18T01:08:41.451984+00:00"},{"alias_kind":"pith_short_12","alias_value":"EKRFZMCQAHKG","created_at":"2026-05-18T12:30:12.583610+00:00"},{"alias_kind":"pith_short_16","alias_value":"EKRFZMCQAHKGKAUE","created_at":"2026-05-18T12:30:12.583610+00:00"},{"alias_kind":"pith_short_8","alias_value":"EKRFZMCQ","created_at":"2026-05-18T12:30:12.583610+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/EKRFZMCQAHKGKAUE7ZX5VBHYXN","json":"https://pith.science/pith/EKRFZMCQAHKGKAUE7ZX5VBHYXN.json","graph_json":"https://pith.science/api/pith-number/EKRFZMCQAHKGKAUE7ZX5VBHYXN/graph.json","events_json":"https://pith.science/api/pith-number/EKRFZMCQAHKGKAUE7ZX5VBHYXN/events.json","paper":"https://pith.science/paper/EKRFZMCQ"},"agent_actions":{"view_html":"https://pith.science/pith/EKRFZMCQAHKGKAUE7ZX5VBHYXN","download_json":"https://pith.science/pith/EKRFZMCQAHKGKAUE7ZX5VBHYXN.json","view_paper":"https://pith.science/paper/EKRFZMCQ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1605.02764&json=true","fetch_graph":"https://pith.science/api/pith-number/EKRFZMCQAHKGKAUE7ZX5VBHYXN/graph.json","fetch_events":"https://pith.science/api/pith-number/EKRFZMCQAHKGKAUE7ZX5VBHYXN/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/EKRFZMCQAHKGKAUE7ZX5VBHYXN/action/timestamp_anchor","attest_storage":"https://pith.science/pith/EKRFZMCQAHKGKAUE7ZX5VBHYXN/action/storage_attestation","attest_author":"https://pith.science/pith/EKRFZMCQAHKGKAUE7ZX5VBHYXN/action/author_attestation","sign_citation":"https://pith.science/pith/EKRFZMCQAHKGKAUE7ZX5VBHYXN/action/citation_signature","submit_replication":"https://pith.science/pith/EKRFZMCQAHKGKAUE7ZX5VBHYXN/action/replication_record"}},"created_at":"2026-05-18T01:08:41.451984+00:00","updated_at":"2026-05-18T01:08:41.451984+00:00"}