{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:MJU2T34ZSNEOFD5ZG3INASW6XN","short_pith_number":"pith:MJU2T34Z","schema_version":"1.0","canonical_sha256":"6269a9ef999348e28fb936d0d04adebb5bea9c0e2d615757970ac40f025e9159","source":{"kind":"arxiv","id":"0908.3468","version":1},"attestation_state":"computed","paper":{"title":"Precision Astrometry of a Sample of Speckle Binaries and Multiples with the Adaptive Optics Facilities at the Hale and Keck II Telescopes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"J. Eisner, K. G. He{\\l}miniak, M. Konacki, S. R. Kulkarni","submitted_at":"2009-08-24T17:16:33Z","abstract_excerpt":"Using the adaptive optics facilities at the 200-in Hale and 10-m Keck II, we observed in the near infrared a sample of 12 binary and multiple stars and one open cluster. We used the near diffraction limited images of these systems to measure the relative separations and position angles between their components. In this paper, we investigate and correct for the influence of the differential chromatic refraction and chip distortions on our relative astrometric measurements. Over one night, we achieve an astrometric precision typically well below 1 miliarcsecond and occasionally as small as 40 mi"},"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":"0908.3468","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2009-08-24T17:16:33Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"4a69cedae3c53a2bf3d02e0892f5824cc23f68030c514a2124fc33a97fbbf582","abstract_canon_sha256":"a1cc64f632508193faefaaf6528f76f77c4a9bae1fb10344a3b27670c416d71d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:12:23.505979Z","signature_b64":"FDZD5dEVfIeQXslrfEEmlFelM76kqZxSfisLIXBPTlQTxcVxPt5gnoVVqn9PXTP0YYyENTtphPMyec+H20POAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6269a9ef999348e28fb936d0d04adebb5bea9c0e2d615757970ac40f025e9159","last_reissued_at":"2026-05-18T02:12:23.505135Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:12:23.505135Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Precision Astrometry of a Sample of Speckle Binaries and Multiples with the Adaptive Optics Facilities at the Hale and Keck II Telescopes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"J. Eisner, K. G. He{\\l}miniak, M. Konacki, S. R. Kulkarni","submitted_at":"2009-08-24T17:16:33Z","abstract_excerpt":"Using the adaptive optics facilities at the 200-in Hale and 10-m Keck II, we observed in the near infrared a sample of 12 binary and multiple stars and one open cluster. We used the near diffraction limited images of these systems to measure the relative separations and position angles between their components. In this paper, we investigate and correct for the influence of the differential chromatic refraction and chip distortions on our relative astrometric measurements. Over one night, we achieve an astrometric precision typically well below 1 miliarcsecond and occasionally as small as 40 mi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0908.3468","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":"0908.3468","created_at":"2026-05-18T02:12:23.505278+00:00"},{"alias_kind":"arxiv_version","alias_value":"0908.3468v1","created_at":"2026-05-18T02:12:23.505278+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0908.3468","created_at":"2026-05-18T02:12:23.505278+00:00"},{"alias_kind":"pith_short_12","alias_value":"MJU2T34ZSNEO","created_at":"2026-05-18T12:26:00.592388+00:00"},{"alias_kind":"pith_short_16","alias_value":"MJU2T34ZSNEOFD5Z","created_at":"2026-05-18T12:26:00.592388+00:00"},{"alias_kind":"pith_short_8","alias_value":"MJU2T34Z","created_at":"2026-05-18T12:26:00.592388+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/MJU2T34ZSNEOFD5ZG3INASW6XN","json":"https://pith.science/pith/MJU2T34ZSNEOFD5ZG3INASW6XN.json","graph_json":"https://pith.science/api/pith-number/MJU2T34ZSNEOFD5ZG3INASW6XN/graph.json","events_json":"https://pith.science/api/pith-number/MJU2T34ZSNEOFD5ZG3INASW6XN/events.json","paper":"https://pith.science/paper/MJU2T34Z"},"agent_actions":{"view_html":"https://pith.science/pith/MJU2T34ZSNEOFD5ZG3INASW6XN","download_json":"https://pith.science/pith/MJU2T34ZSNEOFD5ZG3INASW6XN.json","view_paper":"https://pith.science/paper/MJU2T34Z","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0908.3468&json=true","fetch_graph":"https://pith.science/api/pith-number/MJU2T34ZSNEOFD5ZG3INASW6XN/graph.json","fetch_events":"https://pith.science/api/pith-number/MJU2T34ZSNEOFD5ZG3INASW6XN/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/MJU2T34ZSNEOFD5ZG3INASW6XN/action/timestamp_anchor","attest_storage":"https://pith.science/pith/MJU2T34ZSNEOFD5ZG3INASW6XN/action/storage_attestation","attest_author":"https://pith.science/pith/MJU2T34ZSNEOFD5ZG3INASW6XN/action/author_attestation","sign_citation":"https://pith.science/pith/MJU2T34ZSNEOFD5ZG3INASW6XN/action/citation_signature","submit_replication":"https://pith.science/pith/MJU2T34ZSNEOFD5ZG3INASW6XN/action/replication_record"}},"created_at":"2026-05-18T02:12:23.505278+00:00","updated_at":"2026-05-18T02:12:23.505278+00:00"}