{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:C4AZQ4FYJTDTN3UFVC4PDEB5IM","short_pith_number":"pith:C4AZQ4FY","schema_version":"1.0","canonical_sha256":"17019870b84cc736ee85a8b8f1903d4332acb7a1f99edfba7f5710db1afba5f8","source":{"kind":"arxiv","id":"1804.00830","version":2},"attestation_state":"computed","paper":{"title":"MOA-2015-BLG-337: A Planetary System with a Low-mass Brown Dwarf/Planetary Boundary Host, or a Brown Dwarf Binary","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"A. Bhattacharya, A. Fukui, A. Gould, A. Sharan, A. Udalski, A. Yonehara, B.-G. Park, C. Han, C. H. Ling, C. Ranc, C.-U. Lee, D.-J. Kim, D.-J. Lee, D.J. Sullivan, D. P. Bennett, D. Suzuki, F. Abe, H. Shibai, H. Suematsu, H.-W. Kim, I. A. Bond, I.-G.Shin, I. Soszy'nski, J. C. Yee, J. Skowron, K.-H. Hwang, K. Kawasaki, K. Ohnishi, K. Ulaczyk, M. C. Li, M. D. Albrow, M. Donachie, M. K. Szyma'nski, M. Nagakane, M. Pawlak, N. Koshimoto, N. Rattenbury, P. J. Tristram, P. Mr'oz, P. Pietrukowicz, R. Barry, R. Poleski, R. W. Pogge, S.-J. Chung, S.-L. Kim, S.-M. Cha, S. Miyazaki, S. owski, T. Matsuo, T. Saito, T. Sumi, T. Yamada, W. Zang, W. Zhu, Y. Hirao, Y.-H. Ryu, Y. Itow, Y. K. Jung, Y. Lee, Y. Matsubara, Y. Muraki, Y. Shvartzvald","submitted_at":"2018-04-03T05:27:14Z","abstract_excerpt":"We report the discovery and the analysis of the short timescale binary-lens microlensing event, MOA-2015-BLG-337. The lens system could be a planetary system with a very low mass host, around the brown dwarf/planetary mass boundary, or a brown dwarf binary. We found two competing models that explain the observed light curves with companion/host mass ratios of q~0.01 and ~0.17, respectively. From the measurement of finite source effects in the best-fit planetary model, we find a relatively small angular Einstein radius of theta_E ~ 0.03 mas which favors a low mass lens. We conduct a Bayesian an"},"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":"1804.00830","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-04-03T05:27:14Z","cross_cats_sorted":[],"title_canon_sha256":"94ffd44e07cba97af4895ad99e22316ce639a94b0bff3052f3b74527d848b9e9","abstract_canon_sha256":"0fab8676f3aa0064a5e6b6a16823c4c88c0645602a524d6c64c7b08a6a013e06"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:06:40.265613Z","signature_b64":"OmU9FeZx7Qv19eMaIQWEG2pYEd7jmyj8jBve9eECmsHIsos42R0KcniokEM0qeZJHNBxBci2gFbEfUOTwaBiDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"17019870b84cc736ee85a8b8f1903d4332acb7a1f99edfba7f5710db1afba5f8","last_reissued_at":"2026-05-18T00:06:40.265139Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:06:40.265139Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"MOA-2015-BLG-337: A Planetary System with a Low-mass Brown Dwarf/Planetary Boundary Host, or a Brown Dwarf Binary","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"A. Bhattacharya, A. Fukui, A. Gould, A. Sharan, A. Udalski, A. Yonehara, B.-G. Park, C. Han, C. H. Ling, C. Ranc, C.-U. Lee, D.-J. Kim, D.-J. Lee, D.J. Sullivan, D. P. Bennett, D. Suzuki, F. Abe, H. Shibai, H. Suematsu, H.-W. Kim, I. A. Bond, I.-G.Shin, I. Soszy'nski, J. C. Yee, J. Skowron, K.-H. Hwang, K. Kawasaki, K. Ohnishi, K. Ulaczyk, M. C. Li, M. D. Albrow, M. Donachie, M. K. Szyma'nski, M. Nagakane, M. Pawlak, N. Koshimoto, N. Rattenbury, P. J. Tristram, P. Mr'oz, P. Pietrukowicz, R. Barry, R. Poleski, R. W. Pogge, S.-J. Chung, S.-L. Kim, S.-M. Cha, S. Miyazaki, S. owski, T. Matsuo, T. Saito, T. Sumi, T. Yamada, W. Zang, W. Zhu, Y. Hirao, Y.-H. Ryu, Y. Itow, Y. K. Jung, Y. Lee, Y. Matsubara, Y. Muraki, Y. Shvartzvald","submitted_at":"2018-04-03T05:27:14Z","abstract_excerpt":"We report the discovery and the analysis of the short timescale binary-lens microlensing event, MOA-2015-BLG-337. The lens system could be a planetary system with a very low mass host, around the brown dwarf/planetary mass boundary, or a brown dwarf binary. We found two competing models that explain the observed light curves with companion/host mass ratios of q~0.01 and ~0.17, respectively. From the measurement of finite source effects in the best-fit planetary model, we find a relatively small angular Einstein radius of theta_E ~ 0.03 mas which favors a low mass lens. We conduct a Bayesian an"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.00830","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":"1804.00830","created_at":"2026-05-18T00:06:40.265212+00:00"},{"alias_kind":"arxiv_version","alias_value":"1804.00830v2","created_at":"2026-05-18T00:06:40.265212+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.00830","created_at":"2026-05-18T00:06:40.265212+00:00"},{"alias_kind":"pith_short_12","alias_value":"C4AZQ4FYJTDT","created_at":"2026-05-18T12:32:16.446611+00:00"},{"alias_kind":"pith_short_16","alias_value":"C4AZQ4FYJTDTN3UF","created_at":"2026-05-18T12:32:16.446611+00:00"},{"alias_kind":"pith_short_8","alias_value":"C4AZQ4FY","created_at":"2026-05-18T12:32:16.446611+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/C4AZQ4FYJTDTN3UFVC4PDEB5IM","json":"https://pith.science/pith/C4AZQ4FYJTDTN3UFVC4PDEB5IM.json","graph_json":"https://pith.science/api/pith-number/C4AZQ4FYJTDTN3UFVC4PDEB5IM/graph.json","events_json":"https://pith.science/api/pith-number/C4AZQ4FYJTDTN3UFVC4PDEB5IM/events.json","paper":"https://pith.science/paper/C4AZQ4FY"},"agent_actions":{"view_html":"https://pith.science/pith/C4AZQ4FYJTDTN3UFVC4PDEB5IM","download_json":"https://pith.science/pith/C4AZQ4FYJTDTN3UFVC4PDEB5IM.json","view_paper":"https://pith.science/paper/C4AZQ4FY","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1804.00830&json=true","fetch_graph":"https://pith.science/api/pith-number/C4AZQ4FYJTDTN3UFVC4PDEB5IM/graph.json","fetch_events":"https://pith.science/api/pith-number/C4AZQ4FYJTDTN3UFVC4PDEB5IM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/C4AZQ4FYJTDTN3UFVC4PDEB5IM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/C4AZQ4FYJTDTN3UFVC4PDEB5IM/action/storage_attestation","attest_author":"https://pith.science/pith/C4AZQ4FYJTDTN3UFVC4PDEB5IM/action/author_attestation","sign_citation":"https://pith.science/pith/C4AZQ4FYJTDTN3UFVC4PDEB5IM/action/citation_signature","submit_replication":"https://pith.science/pith/C4AZQ4FYJTDTN3UFVC4PDEB5IM/action/replication_record"}},"created_at":"2026-05-18T00:06:40.265212+00:00","updated_at":"2026-05-18T00:06:40.265212+00:00"}