{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:TFBNBH3736VCUNZKA3RS3UU7AO","short_pith_number":"pith:TFBNBH37","schema_version":"1.0","canonical_sha256":"9942d09f7fdfaa2a372a06e32dd29f03bfb9d931c691107be5deed5a5ce914e5","source":{"kind":"arxiv","id":"1708.02834","version":1},"attestation_state":"computed","paper":{"title":"Infrared Spectroscopy of HR 4796A's Bright Outer Cometary Ring + Tenuous Inner Hot Dust Cloud","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"Carey M. Lisse, Christine H. Chen, Massimo Marengo, Mike L. Sitko, Ron J. Vervack, Tushar Mittal, Yanga R. Fernandez","submitted_at":"2017-08-09T13:48:26Z","abstract_excerpt":"We have obtained new NASA IRTF SpeX spectra of the HR 4796A debris ring system. We find a unique red excess flux that extends out to ~9 um in Spitzer IRS spectra, where thermal emission from cold, ~100K dust from the system's ring at ~75 AU takes over. Matching imaging ring photometry, we find the excess consists of NIR reflectance from the ring which is as red as that of old, processed comet nuclei, plus a tenuous thermal emission component from close-in, T ~ 850 K circumstellar material evincing an organic plus silicate emission feature complex at 7 - 13 um. Unusual, emission-like features d"},"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":"1708.02834","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-08-09T13:48:26Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"1c716320777aa77960d762db783d6d19fe9a4386d6da3f88c0a32dd59c041b54","abstract_canon_sha256":"37e67a2278c3828c68bbb95de7e6a8f81ad8db01ddb6edaba35fc82af6b07e09"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:32:39.460337Z","signature_b64":"CXVEW9klLj+64iPfDV1Max9NOABm8SKA6qGsbxuEW9asUKSpak+Xx+ixAzfZCnP1G5I0QbyOYM7Tf5AeJ9xgDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9942d09f7fdfaa2a372a06e32dd29f03bfb9d931c691107be5deed5a5ce914e5","last_reissued_at":"2026-05-18T00:32:39.459706Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:32:39.459706Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Infrared Spectroscopy of HR 4796A's Bright Outer Cometary Ring + Tenuous Inner Hot Dust Cloud","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"Carey M. Lisse, Christine H. Chen, Massimo Marengo, Mike L. Sitko, Ron J. Vervack, Tushar Mittal, Yanga R. Fernandez","submitted_at":"2017-08-09T13:48:26Z","abstract_excerpt":"We have obtained new NASA IRTF SpeX spectra of the HR 4796A debris ring system. We find a unique red excess flux that extends out to ~9 um in Spitzer IRS spectra, where thermal emission from cold, ~100K dust from the system's ring at ~75 AU takes over. Matching imaging ring photometry, we find the excess consists of NIR reflectance from the ring which is as red as that of old, processed comet nuclei, plus a tenuous thermal emission component from close-in, T ~ 850 K circumstellar material evincing an organic plus silicate emission feature complex at 7 - 13 um. Unusual, emission-like features d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.02834","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":"1708.02834","created_at":"2026-05-18T00:32:39.459794+00:00"},{"alias_kind":"arxiv_version","alias_value":"1708.02834v1","created_at":"2026-05-18T00:32:39.459794+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.02834","created_at":"2026-05-18T00:32:39.459794+00:00"},{"alias_kind":"pith_short_12","alias_value":"TFBNBH3736VC","created_at":"2026-05-18T12:31:46.661854+00:00"},{"alias_kind":"pith_short_16","alias_value":"TFBNBH3736VCUNZK","created_at":"2026-05-18T12:31:46.661854+00:00"},{"alias_kind":"pith_short_8","alias_value":"TFBNBH37","created_at":"2026-05-18T12:31:46.661854+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/TFBNBH3736VCUNZKA3RS3UU7AO","json":"https://pith.science/pith/TFBNBH3736VCUNZKA3RS3UU7AO.json","graph_json":"https://pith.science/api/pith-number/TFBNBH3736VCUNZKA3RS3UU7AO/graph.json","events_json":"https://pith.science/api/pith-number/TFBNBH3736VCUNZKA3RS3UU7AO/events.json","paper":"https://pith.science/paper/TFBNBH37"},"agent_actions":{"view_html":"https://pith.science/pith/TFBNBH3736VCUNZKA3RS3UU7AO","download_json":"https://pith.science/pith/TFBNBH3736VCUNZKA3RS3UU7AO.json","view_paper":"https://pith.science/paper/TFBNBH37","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1708.02834&json=true","fetch_graph":"https://pith.science/api/pith-number/TFBNBH3736VCUNZKA3RS3UU7AO/graph.json","fetch_events":"https://pith.science/api/pith-number/TFBNBH3736VCUNZKA3RS3UU7AO/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/TFBNBH3736VCUNZKA3RS3UU7AO/action/timestamp_anchor","attest_storage":"https://pith.science/pith/TFBNBH3736VCUNZKA3RS3UU7AO/action/storage_attestation","attest_author":"https://pith.science/pith/TFBNBH3736VCUNZKA3RS3UU7AO/action/author_attestation","sign_citation":"https://pith.science/pith/TFBNBH3736VCUNZKA3RS3UU7AO/action/citation_signature","submit_replication":"https://pith.science/pith/TFBNBH3736VCUNZKA3RS3UU7AO/action/replication_record"}},"created_at":"2026-05-18T00:32:39.459794+00:00","updated_at":"2026-05-18T00:32:39.459794+00:00"}