{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:YZJXQVFP2ZG6DDFBUKL4YOLI6Z","short_pith_number":"pith:YZJXQVFP","schema_version":"1.0","canonical_sha256":"c6537854afd64de18ca1a297cc3968f65a83f1e36265ba83407ba9b8a573cbe5","source":{"kind":"arxiv","id":"1708.07777","version":1},"attestation_state":"computed","paper":{"title":"Rotation periods and photometric variability of rapidly rotating ultra-cool dwarfs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"E. Pall\\'e, M. R. Zapatero Osorio, P. A. Miles-P\\'aez","submitted_at":"2017-08-25T15:29:52Z","abstract_excerpt":"We used the optical and near-infrared imagers located on the Liverpool, the IAC80, and the William Herschel telescopes to monitor 18 M7$-$L9.5 dwarfs with the objective of measuring their rotation periods. We achieved accuracies typically in the range $\\pm$1.5$-$28 mmag by means of differential photometry, which allowed us to detect photometric variability at the 2$\\sigma$ level in the 50\\% of the sample. We also detected periodic modulation with periods in the interval 1.5$-$4.4 h in 9 out of 18 dwarfs that we attribute to rotation. Our variability detections were combined with data from the "},"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":"1708.07777","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-08-25T15:29:52Z","cross_cats_sorted":[],"title_canon_sha256":"8b50908a93451de795f34026a34554ad6128f74137264fe0e56664c133f78a19","abstract_canon_sha256":"c9e28a56d79bca8f9a21ed3a7918760cf4e55f29effb049af8440b6a6cc6c397"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:34:17.422835Z","signature_b64":"MxF25CF2V6Vj5xV+1kKohZo5n+ul4uDKLNf1xJbh3PJGjhE98NaGcXqJ2Rstsi8NxxXPwOebxQY6rlx7F/VHCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c6537854afd64de18ca1a297cc3968f65a83f1e36265ba83407ba9b8a573cbe5","last_reissued_at":"2026-05-18T00:34:17.422282Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:34:17.422282Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Rotation periods and photometric variability of rapidly rotating ultra-cool dwarfs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"E. Pall\\'e, M. R. Zapatero Osorio, P. A. Miles-P\\'aez","submitted_at":"2017-08-25T15:29:52Z","abstract_excerpt":"We used the optical and near-infrared imagers located on the Liverpool, the IAC80, and the William Herschel telescopes to monitor 18 M7$-$L9.5 dwarfs with the objective of measuring their rotation periods. We achieved accuracies typically in the range $\\pm$1.5$-$28 mmag by means of differential photometry, which allowed us to detect photometric variability at the 2$\\sigma$ level in the 50\\% of the sample. We also detected periodic modulation with periods in the interval 1.5$-$4.4 h in 9 out of 18 dwarfs that we attribute to rotation. Our variability detections were combined with data from the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.07777","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":"1708.07777","created_at":"2026-05-18T00:34:17.422382+00:00"},{"alias_kind":"arxiv_version","alias_value":"1708.07777v1","created_at":"2026-05-18T00:34:17.422382+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.07777","created_at":"2026-05-18T00:34:17.422382+00:00"},{"alias_kind":"pith_short_12","alias_value":"YZJXQVFP2ZG6","created_at":"2026-05-18T12:31:59.375834+00:00"},{"alias_kind":"pith_short_16","alias_value":"YZJXQVFP2ZG6DDFB","created_at":"2026-05-18T12:31:59.375834+00:00"},{"alias_kind":"pith_short_8","alias_value":"YZJXQVFP","created_at":"2026-05-18T12:31:59.375834+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/YZJXQVFP2ZG6DDFBUKL4YOLI6Z","json":"https://pith.science/pith/YZJXQVFP2ZG6DDFBUKL4YOLI6Z.json","graph_json":"https://pith.science/api/pith-number/YZJXQVFP2ZG6DDFBUKL4YOLI6Z/graph.json","events_json":"https://pith.science/api/pith-number/YZJXQVFP2ZG6DDFBUKL4YOLI6Z/events.json","paper":"https://pith.science/paper/YZJXQVFP"},"agent_actions":{"view_html":"https://pith.science/pith/YZJXQVFP2ZG6DDFBUKL4YOLI6Z","download_json":"https://pith.science/pith/YZJXQVFP2ZG6DDFBUKL4YOLI6Z.json","view_paper":"https://pith.science/paper/YZJXQVFP","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1708.07777&json=true","fetch_graph":"https://pith.science/api/pith-number/YZJXQVFP2ZG6DDFBUKL4YOLI6Z/graph.json","fetch_events":"https://pith.science/api/pith-number/YZJXQVFP2ZG6DDFBUKL4YOLI6Z/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/YZJXQVFP2ZG6DDFBUKL4YOLI6Z/action/timestamp_anchor","attest_storage":"https://pith.science/pith/YZJXQVFP2ZG6DDFBUKL4YOLI6Z/action/storage_attestation","attest_author":"https://pith.science/pith/YZJXQVFP2ZG6DDFBUKL4YOLI6Z/action/author_attestation","sign_citation":"https://pith.science/pith/YZJXQVFP2ZG6DDFBUKL4YOLI6Z/action/citation_signature","submit_replication":"https://pith.science/pith/YZJXQVFP2ZG6DDFBUKL4YOLI6Z/action/replication_record"}},"created_at":"2026-05-18T00:34:17.422382+00:00","updated_at":"2026-05-18T00:34:17.422382+00:00"}