{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:XZDPLK5KL2FBIAWDDSXWMBIISK","short_pith_number":"pith:XZDPLK5K","schema_version":"1.0","canonical_sha256":"be46f5abaa5e8a1402c31caf6605089294c40ade429390504a027e6794ac9194","source":{"kind":"arxiv","id":"1809.00482","version":1},"attestation_state":"computed","paper":{"title":"Probing the protoplanetary disk gas surface density distribution with $^{13}$CO emission","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Anna Miotello, Ewine F. van Dishoeck, Simon Bruderer, Stefano Facchini","submitted_at":"2018-09-03T08:09:40Z","abstract_excerpt":"It is key to constrain the gas surface density distribution, Sigma_gas, as function of disk radius in protoplanetary disks. In this work we investigate if spatially resolved observations of rarer CO isotopologues may be good tracers of Sigma_gas. Physical-chemical models with different input Sigma_gas(R) are run. The input disk surface density profiles are compared with the simulated 13CO intensity radial profiles to check if and where the two follow each other. There is always an intermediate region in the disk where the slope of the 13CO radial emission profile and Sigma_gas(R) coincide. At "},"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":"1809.00482","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-09-03T08:09:40Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"6d86aeae772953fcd9993e338642b58357d20c5b183c830c5b58ae6829a61f25","abstract_canon_sha256":"a102ef6340f07ab5962293b575c22ff146baeb4197bd55b4bd02aee45d265465"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:00:45.706954Z","signature_b64":"f9EAu40XsQPusy7ICV3tJN4JcEQc3xec7q1nPmuGnRcE+CSzKfvxH3HQEWPpzW/vtanhjhGftSAdO4unyM1xBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"be46f5abaa5e8a1402c31caf6605089294c40ade429390504a027e6794ac9194","last_reissued_at":"2026-05-18T00:00:45.706493Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:00:45.706493Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Probing the protoplanetary disk gas surface density distribution with $^{13}$CO emission","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Anna Miotello, Ewine F. van Dishoeck, Simon Bruderer, Stefano Facchini","submitted_at":"2018-09-03T08:09:40Z","abstract_excerpt":"It is key to constrain the gas surface density distribution, Sigma_gas, as function of disk radius in protoplanetary disks. In this work we investigate if spatially resolved observations of rarer CO isotopologues may be good tracers of Sigma_gas. Physical-chemical models with different input Sigma_gas(R) are run. The input disk surface density profiles are compared with the simulated 13CO intensity radial profiles to check if and where the two follow each other. There is always an intermediate region in the disk where the slope of the 13CO radial emission profile and Sigma_gas(R) coincide. At "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.00482","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":"1809.00482","created_at":"2026-05-18T00:00:45.706569+00:00"},{"alias_kind":"arxiv_version","alias_value":"1809.00482v1","created_at":"2026-05-18T00:00:45.706569+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.00482","created_at":"2026-05-18T00:00:45.706569+00:00"},{"alias_kind":"pith_short_12","alias_value":"XZDPLK5KL2FB","created_at":"2026-05-18T12:33:04.347982+00:00"},{"alias_kind":"pith_short_16","alias_value":"XZDPLK5KL2FBIAWD","created_at":"2026-05-18T12:33:04.347982+00:00"},{"alias_kind":"pith_short_8","alias_value":"XZDPLK5K","created_at":"2026-05-18T12:33:04.347982+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/XZDPLK5KL2FBIAWDDSXWMBIISK","json":"https://pith.science/pith/XZDPLK5KL2FBIAWDDSXWMBIISK.json","graph_json":"https://pith.science/api/pith-number/XZDPLK5KL2FBIAWDDSXWMBIISK/graph.json","events_json":"https://pith.science/api/pith-number/XZDPLK5KL2FBIAWDDSXWMBIISK/events.json","paper":"https://pith.science/paper/XZDPLK5K"},"agent_actions":{"view_html":"https://pith.science/pith/XZDPLK5KL2FBIAWDDSXWMBIISK","download_json":"https://pith.science/pith/XZDPLK5KL2FBIAWDDSXWMBIISK.json","view_paper":"https://pith.science/paper/XZDPLK5K","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1809.00482&json=true","fetch_graph":"https://pith.science/api/pith-number/XZDPLK5KL2FBIAWDDSXWMBIISK/graph.json","fetch_events":"https://pith.science/api/pith-number/XZDPLK5KL2FBIAWDDSXWMBIISK/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/XZDPLK5KL2FBIAWDDSXWMBIISK/action/timestamp_anchor","attest_storage":"https://pith.science/pith/XZDPLK5KL2FBIAWDDSXWMBIISK/action/storage_attestation","attest_author":"https://pith.science/pith/XZDPLK5KL2FBIAWDDSXWMBIISK/action/author_attestation","sign_citation":"https://pith.science/pith/XZDPLK5KL2FBIAWDDSXWMBIISK/action/citation_signature","submit_replication":"https://pith.science/pith/XZDPLK5KL2FBIAWDDSXWMBIISK/action/replication_record"}},"created_at":"2026-05-18T00:00:45.706569+00:00","updated_at":"2026-05-18T00:00:45.706569+00:00"}