{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:NUSDL75AHQHIS7JDEGTBSONTJS","short_pith_number":"pith:NUSDL75A","schema_version":"1.0","canonical_sha256":"6d2435ffa03c0e897d2321a61939b34c8931640401eed3c5c8e6e61620ad96c1","source":{"kind":"arxiv","id":"0909.0802","version":2},"attestation_state":"computed","paper":{"title":"Candidate free-floating super-Jupiters in the young sigma Orionis open cluster","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"A. D\\'iaz-S\\'anchez, A. P\\'erez-Garrido, B. Goldman, C. A. L. Bailer-Jones, D. Barrado y Navascu\\'es, E. L. Mart\\'in, G. Bihain, I. Vill\\'o-P\\'erez, J. A. Caballero, J. Eisl\\\"offel, M. R. Zapatero Osorio, R. Mundt, R. Rebolo, T. Forveille, T. Henning, V. J. S. B\\'ejar","submitted_at":"2009-09-04T13:56:07Z","abstract_excerpt":"Free-floating substellar candidates with estimated theoretical masses of as low as ~5 Jupiter masses have been found in the ~3 Myr old sigma Orionis open cluster. As the overlap with the planetary mass domain increases, the question of how these objects form becomes important. The determination of their number density and whether a mass cut-off limit exists is crucial to understanding their formation. We propose to search for objects of yet lower masses in the cluster and determine the shape of the mass function at low mass. Using new- and (re-analysed) published IZJHKs[3.6]-[8.0]-band data of"},"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":"0909.0802","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-09-04T13:56:07Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"7bf6983c28a46bdca96250876496e35b208eaf0bb28b8cd225c56b93799ae1ee","abstract_canon_sha256":"0be442584dcf5b39cca91b7b60b25ffc02f1e6b7942df1e6ed075fc017730354"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:12:00.015249Z","signature_b64":"wmA3h7mw3zlEL9gRot7ow6uzh3o8VxYfL4CCXbNzx3c/7Sy9ZCC/EYAK2fpuCdtRHElcbPd62Meeo/EGyDz6CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6d2435ffa03c0e897d2321a61939b34c8931640401eed3c5c8e6e61620ad96c1","last_reissued_at":"2026-05-18T02:12:00.014459Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:12:00.014459Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Candidate free-floating super-Jupiters in the young sigma Orionis open cluster","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"A. D\\'iaz-S\\'anchez, A. P\\'erez-Garrido, B. Goldman, C. A. L. Bailer-Jones, D. Barrado y Navascu\\'es, E. L. Mart\\'in, G. Bihain, I. Vill\\'o-P\\'erez, J. A. Caballero, J. Eisl\\\"offel, M. R. Zapatero Osorio, R. Mundt, R. Rebolo, T. Forveille, T. Henning, V. J. S. B\\'ejar","submitted_at":"2009-09-04T13:56:07Z","abstract_excerpt":"Free-floating substellar candidates with estimated theoretical masses of as low as ~5 Jupiter masses have been found in the ~3 Myr old sigma Orionis open cluster. As the overlap with the planetary mass domain increases, the question of how these objects form becomes important. The determination of their number density and whether a mass cut-off limit exists is crucial to understanding their formation. We propose to search for objects of yet lower masses in the cluster and determine the shape of the mass function at low mass. Using new- and (re-analysed) published IZJHKs[3.6]-[8.0]-band data of"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.0802","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":"0909.0802","created_at":"2026-05-18T02:12:00.014583+00:00"},{"alias_kind":"arxiv_version","alias_value":"0909.0802v2","created_at":"2026-05-18T02:12:00.014583+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.0802","created_at":"2026-05-18T02:12:00.014583+00:00"},{"alias_kind":"pith_short_12","alias_value":"NUSDL75AHQHI","created_at":"2026-05-18T12:26:00.592388+00:00"},{"alias_kind":"pith_short_16","alias_value":"NUSDL75AHQHIS7JD","created_at":"2026-05-18T12:26:00.592388+00:00"},{"alias_kind":"pith_short_8","alias_value":"NUSDL75A","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/NUSDL75AHQHIS7JDEGTBSONTJS","json":"https://pith.science/pith/NUSDL75AHQHIS7JDEGTBSONTJS.json","graph_json":"https://pith.science/api/pith-number/NUSDL75AHQHIS7JDEGTBSONTJS/graph.json","events_json":"https://pith.science/api/pith-number/NUSDL75AHQHIS7JDEGTBSONTJS/events.json","paper":"https://pith.science/paper/NUSDL75A"},"agent_actions":{"view_html":"https://pith.science/pith/NUSDL75AHQHIS7JDEGTBSONTJS","download_json":"https://pith.science/pith/NUSDL75AHQHIS7JDEGTBSONTJS.json","view_paper":"https://pith.science/paper/NUSDL75A","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0909.0802&json=true","fetch_graph":"https://pith.science/api/pith-number/NUSDL75AHQHIS7JDEGTBSONTJS/graph.json","fetch_events":"https://pith.science/api/pith-number/NUSDL75AHQHIS7JDEGTBSONTJS/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/NUSDL75AHQHIS7JDEGTBSONTJS/action/timestamp_anchor","attest_storage":"https://pith.science/pith/NUSDL75AHQHIS7JDEGTBSONTJS/action/storage_attestation","attest_author":"https://pith.science/pith/NUSDL75AHQHIS7JDEGTBSONTJS/action/author_attestation","sign_citation":"https://pith.science/pith/NUSDL75AHQHIS7JDEGTBSONTJS/action/citation_signature","submit_replication":"https://pith.science/pith/NUSDL75AHQHIS7JDEGTBSONTJS/action/replication_record"}},"created_at":"2026-05-18T02:12:00.014583+00:00","updated_at":"2026-05-18T02:12:00.014583+00:00"}