{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:4GEKECBX6TIDBXLJJUKHQVVD3I","short_pith_number":"pith:4GEKECBX","schema_version":"1.0","canonical_sha256":"e188a20837f4d030dd694d147856a3da289ae5e2e2987f21f7d85ab020196c60","source":{"kind":"arxiv","id":"1807.00351","version":2},"attestation_state":"computed","paper":{"title":"Asteroseismology of the Double-Mode High-Amplitude $\\delta$ Scuti Star VX Hydrae","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Castro, Altamirano-D\\'evora L, C. Ayala-Loera, Hong-Liang Yan, Hui-Fang Xue, Jian-Ning Fu, Jian-rong Shi, Jia-Shu Niu, Jie Su, Jun-Bo Zhang, L. Fox-Machado, R. Michel, Wei-Kai Zong, Yu-Tao Zhou","submitted_at":"2018-07-01T16:26:48Z","abstract_excerpt":"Bi-site time-series photometric and high-resolution spectroscopic observations were made for the double-mode high-amplitude $\\delta$ Scuti star VX\\ Hya. The fundamental frequency $f_{0}=4.4763\\ \\rm{c\\ days^{-1}}$, the first overtone $f_{1}=5.7897\\ \\rm{c\\ days^{-1}}$ and 23 harmonics and linear combinations of $f_{0}$ and $f_{1}$ are detected by pulsation analysis. From the spectroscopic data, we get $\\rm{[Fe/H] = -0.2\\pm0.1\\ dex}$. The period change rate of the fundamental mode is obtained by using the Fourier-phase diagram method, which gives the value of $(1/P_{0})(dP_{0}/dt)=(1.81\\pm0.09) \\"},"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":"1807.00351","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-07-01T16:26:48Z","cross_cats_sorted":[],"title_canon_sha256":"ad172253ac84a040a17889ce47a8c3060b112c77dd9dfc620786b079d3a70080","abstract_canon_sha256":"394f39221ee619cbc31a77cb8587af2837018733b696c298941f116ab53328c1"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:10:59.292631Z","signature_b64":"kiOjTaYNe6cSdlz/H13Cj89VP3EUmttaTWUUuSCpZf2Uv6RWgaGmzLOyHmfv/GSsWbP+8p/RzcRNx3y6rPC3DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e188a20837f4d030dd694d147856a3da289ae5e2e2987f21f7d85ab020196c60","last_reissued_at":"2026-05-18T00:10:59.291853Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:10:59.291853Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Asteroseismology of the Double-Mode High-Amplitude $\\delta$ Scuti Star VX Hydrae","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Castro, Altamirano-D\\'evora L, C. Ayala-Loera, Hong-Liang Yan, Hui-Fang Xue, Jian-Ning Fu, Jian-rong Shi, Jia-Shu Niu, Jie Su, Jun-Bo Zhang, L. Fox-Machado, R. Michel, Wei-Kai Zong, Yu-Tao Zhou","submitted_at":"2018-07-01T16:26:48Z","abstract_excerpt":"Bi-site time-series photometric and high-resolution spectroscopic observations were made for the double-mode high-amplitude $\\delta$ Scuti star VX\\ Hya. The fundamental frequency $f_{0}=4.4763\\ \\rm{c\\ days^{-1}}$, the first overtone $f_{1}=5.7897\\ \\rm{c\\ days^{-1}}$ and 23 harmonics and linear combinations of $f_{0}$ and $f_{1}$ are detected by pulsation analysis. From the spectroscopic data, we get $\\rm{[Fe/H] = -0.2\\pm0.1\\ dex}$. The period change rate of the fundamental mode is obtained by using the Fourier-phase diagram method, which gives the value of $(1/P_{0})(dP_{0}/dt)=(1.81\\pm0.09) \\"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.00351","kind":"arxiv","version":2},"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":"1807.00351","created_at":"2026-05-18T00:10:59.291975+00:00"},{"alias_kind":"arxiv_version","alias_value":"1807.00351v2","created_at":"2026-05-18T00:10:59.291975+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.00351","created_at":"2026-05-18T00:10:59.291975+00:00"},{"alias_kind":"pith_short_12","alias_value":"4GEKECBX6TID","created_at":"2026-05-18T12:32:05.422762+00:00"},{"alias_kind":"pith_short_16","alias_value":"4GEKECBX6TIDBXLJ","created_at":"2026-05-18T12:32:05.422762+00:00"},{"alias_kind":"pith_short_8","alias_value":"4GEKECBX","created_at":"2026-05-18T12:32:05.422762+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/4GEKECBX6TIDBXLJJUKHQVVD3I","json":"https://pith.science/pith/4GEKECBX6TIDBXLJJUKHQVVD3I.json","graph_json":"https://pith.science/api/pith-number/4GEKECBX6TIDBXLJJUKHQVVD3I/graph.json","events_json":"https://pith.science/api/pith-number/4GEKECBX6TIDBXLJJUKHQVVD3I/events.json","paper":"https://pith.science/paper/4GEKECBX"},"agent_actions":{"view_html":"https://pith.science/pith/4GEKECBX6TIDBXLJJUKHQVVD3I","download_json":"https://pith.science/pith/4GEKECBX6TIDBXLJJUKHQVVD3I.json","view_paper":"https://pith.science/paper/4GEKECBX","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1807.00351&json=true","fetch_graph":"https://pith.science/api/pith-number/4GEKECBX6TIDBXLJJUKHQVVD3I/graph.json","fetch_events":"https://pith.science/api/pith-number/4GEKECBX6TIDBXLJJUKHQVVD3I/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/4GEKECBX6TIDBXLJJUKHQVVD3I/action/timestamp_anchor","attest_storage":"https://pith.science/pith/4GEKECBX6TIDBXLJJUKHQVVD3I/action/storage_attestation","attest_author":"https://pith.science/pith/4GEKECBX6TIDBXLJJUKHQVVD3I/action/author_attestation","sign_citation":"https://pith.science/pith/4GEKECBX6TIDBXLJJUKHQVVD3I/action/citation_signature","submit_replication":"https://pith.science/pith/4GEKECBX6TIDBXLJJUKHQVVD3I/action/replication_record"}},"created_at":"2026-05-18T00:10:59.291975+00:00","updated_at":"2026-05-18T00:10:59.291975+00:00"}