{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:BSA4HZDDMNYQTMSVAZ4XKEWPM4","short_pith_number":"pith:BSA4HZDD","schema_version":"1.0","canonical_sha256":"0c81c3e463637109b25506797512cf6707469c4f05d728460395ff2e428fc048","source":{"kind":"arxiv","id":"1702.02016","version":1},"attestation_state":"computed","paper":{"title":"Water isotopologues in the circumstellar envelopes of M-type AGB stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"A. Karakas, H. Olofsson, L. Decin, M. Maercker, R. Lombaert, Ta\\\"issa Danilovich","submitted_at":"2017-02-07T13:58:49Z","abstract_excerpt":"AIM: In this study we examine rotational emission lines of two isotopologues of water: H$_2$$^{17}$O and H$_2$$^{18}$O. By determining the abundances of these molecules, we aim to use the derived isotopologue --- and hence oxygen isotope --- ratios to put constraints on the masses of a sample of M-type AGB stars that have not been classified as OH/IR stars. METHODS: We use detailed radiative transfer analysis based on the accelerated lambda iteration method to model the circumstellar molecular line emission of H$_2$$^{17}$O and H$_2$$^{18}$O for IK Tau, R Dor, W Hya, and R Cas. The emission li"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1702.02016","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-02-07T13:58:49Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"0eda13825674daef1c229ff9ebfed7409911b4282938eb42082f0d5d2d5d3a36","abstract_canon_sha256":"fcc9a02f1ad1f5019f60502441208ea3010fd04af19324ee96094a69673000f4"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:43:54.810483Z","signature_b64":"Csc9wNHv+b4tuGW3axO9iuy7crQwwUgZr7bRJyLSIWUAvS7ixSCHvTcbS6EgwuvQ6GeKRF8ZRticwYIzFNYNCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0c81c3e463637109b25506797512cf6707469c4f05d728460395ff2e428fc048","last_reissued_at":"2026-05-18T00:43:54.809842Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:43:54.809842Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Water isotopologues in the circumstellar envelopes of M-type AGB stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"A. Karakas, H. Olofsson, L. Decin, M. Maercker, R. Lombaert, Ta\\\"issa Danilovich","submitted_at":"2017-02-07T13:58:49Z","abstract_excerpt":"AIM: In this study we examine rotational emission lines of two isotopologues of water: H$_2$$^{17}$O and H$_2$$^{18}$O. By determining the abundances of these molecules, we aim to use the derived isotopologue --- and hence oxygen isotope --- ratios to put constraints on the masses of a sample of M-type AGB stars that have not been classified as OH/IR stars. METHODS: We use detailed radiative transfer analysis based on the accelerated lambda iteration method to model the circumstellar molecular line emission of H$_2$$^{17}$O and H$_2$$^{18}$O for IK Tau, R Dor, W Hya, and R Cas. The emission li"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.02016","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":"1702.02016","created_at":"2026-05-18T00:43:54.809948+00:00"},{"alias_kind":"arxiv_version","alias_value":"1702.02016v1","created_at":"2026-05-18T00:43:54.809948+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.02016","created_at":"2026-05-18T00:43:54.809948+00:00"},{"alias_kind":"pith_short_12","alias_value":"BSA4HZDDMNYQ","created_at":"2026-05-18T12:31:08.081275+00:00"},{"alias_kind":"pith_short_16","alias_value":"BSA4HZDDMNYQTMSV","created_at":"2026-05-18T12:31:08.081275+00:00"},{"alias_kind":"pith_short_8","alias_value":"BSA4HZDD","created_at":"2026-05-18T12:31:08.081275+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/BSA4HZDDMNYQTMSVAZ4XKEWPM4","json":"https://pith.science/pith/BSA4HZDDMNYQTMSVAZ4XKEWPM4.json","graph_json":"https://pith.science/api/pith-number/BSA4HZDDMNYQTMSVAZ4XKEWPM4/graph.json","events_json":"https://pith.science/api/pith-number/BSA4HZDDMNYQTMSVAZ4XKEWPM4/events.json","paper":"https://pith.science/paper/BSA4HZDD"},"agent_actions":{"view_html":"https://pith.science/pith/BSA4HZDDMNYQTMSVAZ4XKEWPM4","download_json":"https://pith.science/pith/BSA4HZDDMNYQTMSVAZ4XKEWPM4.json","view_paper":"https://pith.science/paper/BSA4HZDD","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1702.02016&json=true","fetch_graph":"https://pith.science/api/pith-number/BSA4HZDDMNYQTMSVAZ4XKEWPM4/graph.json","fetch_events":"https://pith.science/api/pith-number/BSA4HZDDMNYQTMSVAZ4XKEWPM4/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/BSA4HZDDMNYQTMSVAZ4XKEWPM4/action/timestamp_anchor","attest_storage":"https://pith.science/pith/BSA4HZDDMNYQTMSVAZ4XKEWPM4/action/storage_attestation","attest_author":"https://pith.science/pith/BSA4HZDDMNYQTMSVAZ4XKEWPM4/action/author_attestation","sign_citation":"https://pith.science/pith/BSA4HZDDMNYQTMSVAZ4XKEWPM4/action/citation_signature","submit_replication":"https://pith.science/pith/BSA4HZDDMNYQTMSVAZ4XKEWPM4/action/replication_record"}},"created_at":"2026-05-18T00:43:54.809948+00:00","updated_at":"2026-05-18T00:43:54.809948+00:00"}