{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:DXTK5UGU2ETAIDSR7XIWVZTSMM","short_pith_number":"pith:DXTK5UGU","schema_version":"1.0","canonical_sha256":"1de6aed0d4d126040e51fdd16ae672632352999e0dc62d619047a4bf619635bb","source":{"kind":"arxiv","id":"1708.02384","version":1},"attestation_state":"computed","paper":{"title":"1000 AU Exterior Arcs Connected to the Protoplanetary Disk around HL Tau","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP","astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Alfonso Trejo, Chin-Fei Lee, Chun-Ju Wu, Hauyu Baobab Liu, Hsi-Wei Yen, Kazuhiro D. Kanagawa, Kazuya Saigo, Naomi Hirano, Paul T. P. Ho, Satoki Matsushita, Sheng-Yuan Liu, Shigehisa Takakuwa, Takayuki Muto, Tomoaki Matsumoto, Ya-Wen Tang, You-Hua Chu","submitted_at":"2017-08-08T07:07:06Z","abstract_excerpt":"The protoplanetary disk around HL Tau is so far the youngest candidate of planet formation, and it is still embedded in a protostellar envelope with a size of thousands of au. In this work, we study the gas kinematics in the envelope and its possible influence on the embedded disk. We present our new ALMA cycle 3 observational results of HL Tau in the 13CO (2-1) and C18O (2-1) emission at resolutions of 0.8\" (110 au), and we compare the observed velocity pattern with models of different kinds of gas motions. Both the 13CO and C18O emission lines show a central compact component with a size of "},"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":"1708.02384","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-08-08T07:07:06Z","cross_cats_sorted":["astro-ph.EP","astro-ph.GA"],"title_canon_sha256":"dbd9b7aa9ecf58616c7219d927616022e72b7f2f4706bca8122419bd4da82cc1","abstract_canon_sha256":"b813732866b7f7a195db5f52e5bf3d77392197f07d9c9d4ca7660aa5ffbb38c0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:27:46.044386Z","signature_b64":"TKwANSqWh+zarguEDpAo/iR+/Ao1LT0dK9yRsHPtUi1GI5nCuS2v8Qxh+e4Gl5m649sbKGVviJYhRs4fqMO4DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1de6aed0d4d126040e51fdd16ae672632352999e0dc62d619047a4bf619635bb","last_reissued_at":"2026-05-18T00:27:46.043860Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:27:46.043860Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"1000 AU Exterior Arcs Connected to the Protoplanetary Disk around HL Tau","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP","astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Alfonso Trejo, Chin-Fei Lee, Chun-Ju Wu, Hauyu Baobab Liu, Hsi-Wei Yen, Kazuhiro D. Kanagawa, Kazuya Saigo, Naomi Hirano, Paul T. P. Ho, Satoki Matsushita, Sheng-Yuan Liu, Shigehisa Takakuwa, Takayuki Muto, Tomoaki Matsumoto, Ya-Wen Tang, You-Hua Chu","submitted_at":"2017-08-08T07:07:06Z","abstract_excerpt":"The protoplanetary disk around HL Tau is so far the youngest candidate of planet formation, and it is still embedded in a protostellar envelope with a size of thousands of au. In this work, we study the gas kinematics in the envelope and its possible influence on the embedded disk. We present our new ALMA cycle 3 observational results of HL Tau in the 13CO (2-1) and C18O (2-1) emission at resolutions of 0.8\" (110 au), and we compare the observed velocity pattern with models of different kinds of gas motions. Both the 13CO and C18O emission lines show a central compact component with a size of "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.02384","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":"1708.02384","created_at":"2026-05-18T00:27:46.043947+00:00"},{"alias_kind":"arxiv_version","alias_value":"1708.02384v1","created_at":"2026-05-18T00:27:46.043947+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.02384","created_at":"2026-05-18T00:27:46.043947+00:00"},{"alias_kind":"pith_short_12","alias_value":"DXTK5UGU2ETA","created_at":"2026-05-18T12:31:12.930513+00:00"},{"alias_kind":"pith_short_16","alias_value":"DXTK5UGU2ETAIDSR","created_at":"2026-05-18T12:31:12.930513+00:00"},{"alias_kind":"pith_short_8","alias_value":"DXTK5UGU","created_at":"2026-05-18T12:31:12.930513+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/DXTK5UGU2ETAIDSR7XIWVZTSMM","json":"https://pith.science/pith/DXTK5UGU2ETAIDSR7XIWVZTSMM.json","graph_json":"https://pith.science/api/pith-number/DXTK5UGU2ETAIDSR7XIWVZTSMM/graph.json","events_json":"https://pith.science/api/pith-number/DXTK5UGU2ETAIDSR7XIWVZTSMM/events.json","paper":"https://pith.science/paper/DXTK5UGU"},"agent_actions":{"view_html":"https://pith.science/pith/DXTK5UGU2ETAIDSR7XIWVZTSMM","download_json":"https://pith.science/pith/DXTK5UGU2ETAIDSR7XIWVZTSMM.json","view_paper":"https://pith.science/paper/DXTK5UGU","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1708.02384&json=true","fetch_graph":"https://pith.science/api/pith-number/DXTK5UGU2ETAIDSR7XIWVZTSMM/graph.json","fetch_events":"https://pith.science/api/pith-number/DXTK5UGU2ETAIDSR7XIWVZTSMM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/DXTK5UGU2ETAIDSR7XIWVZTSMM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/DXTK5UGU2ETAIDSR7XIWVZTSMM/action/storage_attestation","attest_author":"https://pith.science/pith/DXTK5UGU2ETAIDSR7XIWVZTSMM/action/author_attestation","sign_citation":"https://pith.science/pith/DXTK5UGU2ETAIDSR7XIWVZTSMM/action/citation_signature","submit_replication":"https://pith.science/pith/DXTK5UGU2ETAIDSR7XIWVZTSMM/action/replication_record"}},"created_at":"2026-05-18T00:27:46.043947+00:00","updated_at":"2026-05-18T00:27:46.043947+00:00"}