{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:ZVQRYMRIH7NLOGJBBY5CIHX3O4","short_pith_number":"pith:ZVQRYMRI","schema_version":"1.0","canonical_sha256":"cd611c32283fdab719210e3a241efb7737cb09da1561215476675bd5656fdf49","source":{"kind":"arxiv","id":"1606.00848","version":3},"attestation_state":"computed","paper":{"title":"HATS-18 b: An Extreme Short--Period Massive Transiting Planet Spinning Up Its Star","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"Andr'es Jord'an, Brian P. Schmidt, Daniel Bayliss, Gaspar A. Bakos, George Zhou, Istvan Papp, J. L'az'ar, Joao Bento, Joel D. Hartman, Kaloyan M. Penev, Luigi Mancini, Markus Rabus, Miguel de Val-Borro, N\\'estor Espinoza, P. S'ari, Rafael Brahm, Robert W. Noyes, Simona Ciceri, Thomas Henning, Vincent Suc, W. Bhatti, Zoltan Csubry","submitted_at":"2016-06-02T20:08:09Z","abstract_excerpt":"We report the discovery by the HATSouth network of HATS-18 b: a 1.980 +/- 0.077 Mj, 1.337 +0.102 -0.049 Rj planet in a 0.8378 day orbit, around a solar analog star (mass 1.037 +/- 0.047 Msun, and radius 1.020 +0.057 -0.031 Rsun) with V=14.067 +/- 0.040 mag. The high planet mass, combined with its short orbital period, implies strong tidal coupling between the planetary orbit and the star. In fact, given its inferred age, HATS-18 shows evidence of significant tidal spin up, which together with WASP-19 (a very similar system) allows us to constrain the tidal quality factor for Sun-like stars to "},"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":"1606.00848","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-06-02T20:08:09Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"c2eed3bc7675b6d7413a9d4b16ae8d04ee0a9639554bbbf747e3b8f705a0d8c1","abstract_canon_sha256":"ad8443694200de9929e9c643f82700796a11c8a6e671bf62b4fbc6506e48929b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:01:23.682119Z","signature_b64":"Ysh0EJzl3XfkMjwVFvtQFi3zlZBTvxdi5Grpt5nO/crX0PsgTe49C7/1qXX7vbtuKUuO0IopvC7fMDSgMiyiDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cd611c32283fdab719210e3a241efb7737cb09da1561215476675bd5656fdf49","last_reissued_at":"2026-05-18T01:01:23.681590Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:01:23.681590Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"HATS-18 b: An Extreme Short--Period Massive Transiting Planet Spinning Up Its Star","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"Andr'es Jord'an, Brian P. Schmidt, Daniel Bayliss, Gaspar A. Bakos, George Zhou, Istvan Papp, J. L'az'ar, Joao Bento, Joel D. Hartman, Kaloyan M. Penev, Luigi Mancini, Markus Rabus, Miguel de Val-Borro, N\\'estor Espinoza, P. S'ari, Rafael Brahm, Robert W. Noyes, Simona Ciceri, Thomas Henning, Vincent Suc, W. Bhatti, Zoltan Csubry","submitted_at":"2016-06-02T20:08:09Z","abstract_excerpt":"We report the discovery by the HATSouth network of HATS-18 b: a 1.980 +/- 0.077 Mj, 1.337 +0.102 -0.049 Rj planet in a 0.8378 day orbit, around a solar analog star (mass 1.037 +/- 0.047 Msun, and radius 1.020 +0.057 -0.031 Rsun) with V=14.067 +/- 0.040 mag. The high planet mass, combined with its short orbital period, implies strong tidal coupling between the planetary orbit and the star. In fact, given its inferred age, HATS-18 shows evidence of significant tidal spin up, which together with WASP-19 (a very similar system) allows us to constrain the tidal quality factor for Sun-like stars to "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.00848","kind":"arxiv","version":3},"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":"1606.00848","created_at":"2026-05-18T01:01:23.681667+00:00"},{"alias_kind":"arxiv_version","alias_value":"1606.00848v3","created_at":"2026-05-18T01:01:23.681667+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.00848","created_at":"2026-05-18T01:01:23.681667+00:00"},{"alias_kind":"pith_short_12","alias_value":"ZVQRYMRIH7NL","created_at":"2026-05-18T12:30:55.937587+00:00"},{"alias_kind":"pith_short_16","alias_value":"ZVQRYMRIH7NLOGJB","created_at":"2026-05-18T12:30:55.937587+00:00"},{"alias_kind":"pith_short_8","alias_value":"ZVQRYMRI","created_at":"2026-05-18T12:30:55.937587+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/ZVQRYMRIH7NLOGJBBY5CIHX3O4","json":"https://pith.science/pith/ZVQRYMRIH7NLOGJBBY5CIHX3O4.json","graph_json":"https://pith.science/api/pith-number/ZVQRYMRIH7NLOGJBBY5CIHX3O4/graph.json","events_json":"https://pith.science/api/pith-number/ZVQRYMRIH7NLOGJBBY5CIHX3O4/events.json","paper":"https://pith.science/paper/ZVQRYMRI"},"agent_actions":{"view_html":"https://pith.science/pith/ZVQRYMRIH7NLOGJBBY5CIHX3O4","download_json":"https://pith.science/pith/ZVQRYMRIH7NLOGJBBY5CIHX3O4.json","view_paper":"https://pith.science/paper/ZVQRYMRI","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1606.00848&json=true","fetch_graph":"https://pith.science/api/pith-number/ZVQRYMRIH7NLOGJBBY5CIHX3O4/graph.json","fetch_events":"https://pith.science/api/pith-number/ZVQRYMRIH7NLOGJBBY5CIHX3O4/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ZVQRYMRIH7NLOGJBBY5CIHX3O4/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ZVQRYMRIH7NLOGJBBY5CIHX3O4/action/storage_attestation","attest_author":"https://pith.science/pith/ZVQRYMRIH7NLOGJBBY5CIHX3O4/action/author_attestation","sign_citation":"https://pith.science/pith/ZVQRYMRIH7NLOGJBBY5CIHX3O4/action/citation_signature","submit_replication":"https://pith.science/pith/ZVQRYMRIH7NLOGJBBY5CIHX3O4/action/replication_record"}},"created_at":"2026-05-18T01:01:23.681667+00:00","updated_at":"2026-05-18T01:01:23.681667+00:00"}