{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:UF77R6CA7J2PWVZIQJWSJNUGUV","short_pith_number":"pith:UF77R6CA","schema_version":"1.0","canonical_sha256":"a17ff8f840fa74fb5728826d24b686a559ae4aea4bca59f0f7c0df350873eeef","source":{"kind":"arxiv","id":"1310.8627","version":2},"attestation_state":"computed","paper":{"title":"Shedding Light on the Eccentricity Valley: Gap Heating and Eccentricity Excitation of Giant Planets in Protoplanetary Disks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Andrew Cumming, David Tsang, Neal J. Turner","submitted_at":"2013-10-31T18:28:24Z","abstract_excerpt":"We show that the first order (non co-orbital) corotation torques are significantly modified by entropy gradients in a non-barotropic protoplanetary disk. Such non-barotropic torques can dramatically alter the balance that, for barotropic cases, results in the net eccentricity damping for giant gap-clearing planets embedded in the disk. We demonstrate that stellar illumination can heat the gap enough for the planet's orbital eccentricity to instead be excited. We also discuss the \"Eccentricity Valley\" noted in the known exoplanet population, where low-metallicity stars have a deficit of eccentr"},"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":"1310.8627","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2013-10-31T18:28:24Z","cross_cats_sorted":[],"title_canon_sha256":"d55662498599ce0ba66c587a0693c52466c71d7a9a0b678abe9ba48c4db943e5","abstract_canon_sha256":"2f105bdcd6db6042cc73f1c223c5a3fe65072df7a9ff01d7677d865e7bb9d0c2"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:46:40.285906Z","signature_b64":"GhYkaIYelloYMnaJxYS7w9zW3tdbtQ9SxtIpGdmURQmLoTUMrdP9uxHeUiLpawAi7xsVBGlMnjg9wygavSQiAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a17ff8f840fa74fb5728826d24b686a559ae4aea4bca59f0f7c0df350873eeef","last_reissued_at":"2026-05-18T01:46:40.285309Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:46:40.285309Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Shedding Light on the Eccentricity Valley: Gap Heating and Eccentricity Excitation of Giant Planets in Protoplanetary Disks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Andrew Cumming, David Tsang, Neal J. Turner","submitted_at":"2013-10-31T18:28:24Z","abstract_excerpt":"We show that the first order (non co-orbital) corotation torques are significantly modified by entropy gradients in a non-barotropic protoplanetary disk. Such non-barotropic torques can dramatically alter the balance that, for barotropic cases, results in the net eccentricity damping for giant gap-clearing planets embedded in the disk. We demonstrate that stellar illumination can heat the gap enough for the planet's orbital eccentricity to instead be excited. We also discuss the \"Eccentricity Valley\" noted in the known exoplanet population, where low-metallicity stars have a deficit of eccentr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.8627","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":"1310.8627","created_at":"2026-05-18T01:46:40.285414+00:00"},{"alias_kind":"arxiv_version","alias_value":"1310.8627v2","created_at":"2026-05-18T01:46:40.285414+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.8627","created_at":"2026-05-18T01:46:40.285414+00:00"},{"alias_kind":"pith_short_12","alias_value":"UF77R6CA7J2P","created_at":"2026-05-18T12:28:02.375192+00:00"},{"alias_kind":"pith_short_16","alias_value":"UF77R6CA7J2PWVZI","created_at":"2026-05-18T12:28:02.375192+00:00"},{"alias_kind":"pith_short_8","alias_value":"UF77R6CA","created_at":"2026-05-18T12:28:02.375192+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/UF77R6CA7J2PWVZIQJWSJNUGUV","json":"https://pith.science/pith/UF77R6CA7J2PWVZIQJWSJNUGUV.json","graph_json":"https://pith.science/api/pith-number/UF77R6CA7J2PWVZIQJWSJNUGUV/graph.json","events_json":"https://pith.science/api/pith-number/UF77R6CA7J2PWVZIQJWSJNUGUV/events.json","paper":"https://pith.science/paper/UF77R6CA"},"agent_actions":{"view_html":"https://pith.science/pith/UF77R6CA7J2PWVZIQJWSJNUGUV","download_json":"https://pith.science/pith/UF77R6CA7J2PWVZIQJWSJNUGUV.json","view_paper":"https://pith.science/paper/UF77R6CA","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1310.8627&json=true","fetch_graph":"https://pith.science/api/pith-number/UF77R6CA7J2PWVZIQJWSJNUGUV/graph.json","fetch_events":"https://pith.science/api/pith-number/UF77R6CA7J2PWVZIQJWSJNUGUV/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/UF77R6CA7J2PWVZIQJWSJNUGUV/action/timestamp_anchor","attest_storage":"https://pith.science/pith/UF77R6CA7J2PWVZIQJWSJNUGUV/action/storage_attestation","attest_author":"https://pith.science/pith/UF77R6CA7J2PWVZIQJWSJNUGUV/action/author_attestation","sign_citation":"https://pith.science/pith/UF77R6CA7J2PWVZIQJWSJNUGUV/action/citation_signature","submit_replication":"https://pith.science/pith/UF77R6CA7J2PWVZIQJWSJNUGUV/action/replication_record"}},"created_at":"2026-05-18T01:46:40.285414+00:00","updated_at":"2026-05-18T01:46:40.285414+00:00"}