{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:3UHJGCQ47II6O5Q7V36M3B3W2J","short_pith_number":"pith:3UHJGCQ4","schema_version":"1.0","canonical_sha256":"dd0e930a1cfa11e7761faefccd8776d24dbbaf7eb8e8dafd87dfda918af0ef9b","source":{"kind":"arxiv","id":"1609.06611","version":1},"attestation_state":"computed","paper":{"title":"A Search for Mass Loss on the Cepheid Instability Strip using HI 21-cm Line Observations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"L. D. Matthews (MIT Haystack Observatory), M. Marengo (Iowa State University), N. R. Evans (Harvard-Smithsonian Center for Astrophysics)","submitted_at":"2016-09-21T15:59:22Z","abstract_excerpt":"We present the results of a search for HI 21-cm line emission from the circumstellar environments of four Galactic Cepheids (RS Pup, X Cyg, $\\zeta$ Gem, and T Mon) based on observations with the Karl G. Jansky Very Large Array. The observations were aimed at detecting gas associated with previous or ongoing mass loss. Near the long-period Cepheid T Mon, we report the detection of a partial shell-like structure whose properties appear consistent with originating from an earlier epoch of Cepheid mass loss. At the distance of T Mon, the nebula would have a mass (HI+He) of $\\sim0.5M_{\\odot}$, or $"},"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":"1609.06611","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-09-21T15:59:22Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"8d5ac5e6ebf696fdeef205fd69f65748e23b78f0e7cdd0f0002ee8e646907b99","abstract_canon_sha256":"62e0bac537585cf4010952b8a5563f091ea64dcc32e82731ea78b99d574719f5"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:55:11.729946Z","signature_b64":"NI5lJUmVONlTxCDPfLOe4sjsUlEj1II3QIxN4v6U4x6czJwLea+O30+srS5I4AHv6I4zLdFIeby5whmuE2NYCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dd0e930a1cfa11e7761faefccd8776d24dbbaf7eb8e8dafd87dfda918af0ef9b","last_reissued_at":"2026-05-18T00:55:11.729333Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:55:11.729333Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A Search for Mass Loss on the Cepheid Instability Strip using HI 21-cm Line Observations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"L. D. Matthews (MIT Haystack Observatory), M. Marengo (Iowa State University), N. R. Evans (Harvard-Smithsonian Center for Astrophysics)","submitted_at":"2016-09-21T15:59:22Z","abstract_excerpt":"We present the results of a search for HI 21-cm line emission from the circumstellar environments of four Galactic Cepheids (RS Pup, X Cyg, $\\zeta$ Gem, and T Mon) based on observations with the Karl G. Jansky Very Large Array. The observations were aimed at detecting gas associated with previous or ongoing mass loss. Near the long-period Cepheid T Mon, we report the detection of a partial shell-like structure whose properties appear consistent with originating from an earlier epoch of Cepheid mass loss. At the distance of T Mon, the nebula would have a mass (HI+He) of $\\sim0.5M_{\\odot}$, or $"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.06611","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":"1609.06611","created_at":"2026-05-18T00:55:11.729432+00:00"},{"alias_kind":"arxiv_version","alias_value":"1609.06611v1","created_at":"2026-05-18T00:55:11.729432+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.06611","created_at":"2026-05-18T00:55:11.729432+00:00"},{"alias_kind":"pith_short_12","alias_value":"3UHJGCQ47II6","created_at":"2026-05-18T12:29:58.707656+00:00"},{"alias_kind":"pith_short_16","alias_value":"3UHJGCQ47II6O5Q7","created_at":"2026-05-18T12:29:58.707656+00:00"},{"alias_kind":"pith_short_8","alias_value":"3UHJGCQ4","created_at":"2026-05-18T12:29:58.707656+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/3UHJGCQ47II6O5Q7V36M3B3W2J","json":"https://pith.science/pith/3UHJGCQ47II6O5Q7V36M3B3W2J.json","graph_json":"https://pith.science/api/pith-number/3UHJGCQ47II6O5Q7V36M3B3W2J/graph.json","events_json":"https://pith.science/api/pith-number/3UHJGCQ47II6O5Q7V36M3B3W2J/events.json","paper":"https://pith.science/paper/3UHJGCQ4"},"agent_actions":{"view_html":"https://pith.science/pith/3UHJGCQ47II6O5Q7V36M3B3W2J","download_json":"https://pith.science/pith/3UHJGCQ47II6O5Q7V36M3B3W2J.json","view_paper":"https://pith.science/paper/3UHJGCQ4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1609.06611&json=true","fetch_graph":"https://pith.science/api/pith-number/3UHJGCQ47II6O5Q7V36M3B3W2J/graph.json","fetch_events":"https://pith.science/api/pith-number/3UHJGCQ47II6O5Q7V36M3B3W2J/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3UHJGCQ47II6O5Q7V36M3B3W2J/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3UHJGCQ47II6O5Q7V36M3B3W2J/action/storage_attestation","attest_author":"https://pith.science/pith/3UHJGCQ47II6O5Q7V36M3B3W2J/action/author_attestation","sign_citation":"https://pith.science/pith/3UHJGCQ47II6O5Q7V36M3B3W2J/action/citation_signature","submit_replication":"https://pith.science/pith/3UHJGCQ47II6O5Q7V36M3B3W2J/action/replication_record"}},"created_at":"2026-05-18T00:55:11.729432+00:00","updated_at":"2026-05-18T00:55:11.729432+00:00"}