{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:MHCJPHDWIW6KD6IDVURTLTQS4G","short_pith_number":"pith:MHCJPHDW","schema_version":"1.0","canonical_sha256":"61c4979c7645bca1f903ad2335ce12e19131301e59f591358fd8ec5af820333e","source":{"kind":"arxiv","id":"1505.07832","version":2},"attestation_state":"computed","paper":{"title":"The Direct Detectability of Giant Exoplanets in the Optical","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Adam Burrows, Johnny P. Greco","submitted_at":"2015-05-28T20:00:32Z","abstract_excerpt":"Motivated by the possibility that a coronagraph will be put on WFIRST/AFTA, we explore the direct detectability of extrasolar giant planets (EGPs) in the optical. We quantify a planet's detectability by the fraction of its orbit for which it is in an observable configuration ($f_\\mathrm{obs}$). Using a suite of Monte Carlo experiments, we study the dependence of $f_\\mathrm{obs}$ upon the inner working angle (IWA) and minimum achievable contrast ($C_\\mathrm{min}$) of the direct-imaging observatory; the planet's phase function, geometric albedo, single-scattering albedo, radius, and distance fro"},"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":"1505.07832","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-05-28T20:00:32Z","cross_cats_sorted":[],"title_canon_sha256":"af59e2e1a0bddc6634649f70e02b2ab8947957209d486f9158cee4dfb603b400","abstract_canon_sha256":"7217332e1a18e4d401c1e77ff803058b9c1430d77eb590e58500a6c995f216ed"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:36:03.454854Z","signature_b64":"QNmynsJHQv41QIk4XjGsvoNP8vsiG6x/5uX+5Q2lBigUviQaLuCFLNJyGA4RnRGi0xqbtbOv7lB8Sgb01qhzBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"61c4979c7645bca1f903ad2335ce12e19131301e59f591358fd8ec5af820333e","last_reissued_at":"2026-05-18T01:36:03.454191Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:36:03.454191Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Direct Detectability of Giant Exoplanets in the Optical","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Adam Burrows, Johnny P. Greco","submitted_at":"2015-05-28T20:00:32Z","abstract_excerpt":"Motivated by the possibility that a coronagraph will be put on WFIRST/AFTA, we explore the direct detectability of extrasolar giant planets (EGPs) in the optical. We quantify a planet's detectability by the fraction of its orbit for which it is in an observable configuration ($f_\\mathrm{obs}$). Using a suite of Monte Carlo experiments, we study the dependence of $f_\\mathrm{obs}$ upon the inner working angle (IWA) and minimum achievable contrast ($C_\\mathrm{min}$) of the direct-imaging observatory; the planet's phase function, geometric albedo, single-scattering albedo, radius, and distance fro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.07832","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":"1505.07832","created_at":"2026-05-18T01:36:03.454287+00:00"},{"alias_kind":"arxiv_version","alias_value":"1505.07832v2","created_at":"2026-05-18T01:36:03.454287+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.07832","created_at":"2026-05-18T01:36:03.454287+00:00"},{"alias_kind":"pith_short_12","alias_value":"MHCJPHDWIW6K","created_at":"2026-05-18T12:29:32.376354+00:00"},{"alias_kind":"pith_short_16","alias_value":"MHCJPHDWIW6KD6ID","created_at":"2026-05-18T12:29:32.376354+00:00"},{"alias_kind":"pith_short_8","alias_value":"MHCJPHDW","created_at":"2026-05-18T12:29:32.376354+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/MHCJPHDWIW6KD6IDVURTLTQS4G","json":"https://pith.science/pith/MHCJPHDWIW6KD6IDVURTLTQS4G.json","graph_json":"https://pith.science/api/pith-number/MHCJPHDWIW6KD6IDVURTLTQS4G/graph.json","events_json":"https://pith.science/api/pith-number/MHCJPHDWIW6KD6IDVURTLTQS4G/events.json","paper":"https://pith.science/paper/MHCJPHDW"},"agent_actions":{"view_html":"https://pith.science/pith/MHCJPHDWIW6KD6IDVURTLTQS4G","download_json":"https://pith.science/pith/MHCJPHDWIW6KD6IDVURTLTQS4G.json","view_paper":"https://pith.science/paper/MHCJPHDW","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1505.07832&json=true","fetch_graph":"https://pith.science/api/pith-number/MHCJPHDWIW6KD6IDVURTLTQS4G/graph.json","fetch_events":"https://pith.science/api/pith-number/MHCJPHDWIW6KD6IDVURTLTQS4G/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/MHCJPHDWIW6KD6IDVURTLTQS4G/action/timestamp_anchor","attest_storage":"https://pith.science/pith/MHCJPHDWIW6KD6IDVURTLTQS4G/action/storage_attestation","attest_author":"https://pith.science/pith/MHCJPHDWIW6KD6IDVURTLTQS4G/action/author_attestation","sign_citation":"https://pith.science/pith/MHCJPHDWIW6KD6IDVURTLTQS4G/action/citation_signature","submit_replication":"https://pith.science/pith/MHCJPHDWIW6KD6IDVURTLTQS4G/action/replication_record"}},"created_at":"2026-05-18T01:36:03.454287+00:00","updated_at":"2026-05-18T01:36:03.454287+00:00"}