{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:GOLTYMVESUKBSX2DIAMDTO52PU","short_pith_number":"pith:GOLTYMVE","schema_version":"1.0","canonical_sha256":"33973c32a49514195f43401839bbba7d05d6210733d9552bfa6f7f068e8d08d0","source":{"kind":"arxiv","id":"2006.16131","version":1},"attestation_state":"computed","paper":{"title":"Multiband GPI Imaging of the HR 4796A Debris Disk","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Abhijith Rajan, Alycia J. Weinberger, Bin Ren, Brenda Matthews, Charles A. Poteet, Christine H. Chen, Christopher Stark, David J. Wilner, Dean C. Hines, \\'Elodie Choquet, Franck Marchis, Fredrik T. Rantakyr\\\"o, Gael M. Roudier, Gaspard Duch\\^ene, Glenn Schneider, Jason J. Wang, Jeffrey Chilcote, Jennifer Patience, Jessica Arnold, Johan Mazoyer, Juan Sebasti\\'an Bruzzone, Julien Milli, Justin Hom, Katherine B. Follette, Kimberly Ward-Duong, Laurent Pueyo, Marshall D. Perrin, Maxwell A. Millar-Blanchaer, Michael P. Fitzgerald, Pascale Hibon, Pauline Arriaga, Paul Kalas, R\\'emi Soummer, Robert J. De Rosa, Schuyler Wolff, Thomas M. Esposito, Timothy J. Rodigas, Vanessa P. Bailey, Zachary H. Draper","submitted_at":"2020-06-29T15:48:31Z","abstract_excerpt":"We have obtained Gemini Planet Imager (GPI) J-, H-, K1-, and K2-Spec observations of the iconic debris ring around the young, main-sequence star HR 4796A. We applied several point-spread function (PSF) subtraction techniques to the observations (Mask-and-Interpolate, RDI-NMF, RDI-KLIP, and ADI-KLIP) to measure the geometric parameters and the scattering phase function for the disk. To understand the systematic errors associated with PSF subtraction, we also forward-modeled the observations using a Markov Chain Monte Carlo framework and a simple model for the disk. We found that measurements 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":"2006.16131","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-06-29T15:48:31Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"f5f16ba7e44a5272cce130b0a606f1fe164bd4e27f110a2b4c8c99314888437e","abstract_canon_sha256":"8bb148deae74a6c55fe45fa28b500220e6706aeb9c434e35b8ba7b640ecef6fc"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:22:49.425259Z","signature_b64":"8hVTt/XMJR3w+Syw1ncPcVgFjchiGc+l+IZnNzhD5GrWKaaHXQAJUPBvUNoQehGwiFh5obHsGBWBD2K9J3CWBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"33973c32a49514195f43401839bbba7d05d6210733d9552bfa6f7f068e8d08d0","last_reissued_at":"2026-07-05T01:22:49.424846Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:22:49.424846Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Multiband GPI Imaging of the HR 4796A Debris Disk","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Abhijith Rajan, Alycia J. Weinberger, Bin Ren, Brenda Matthews, Charles A. Poteet, Christine H. Chen, Christopher Stark, David J. Wilner, Dean C. Hines, \\'Elodie Choquet, Franck Marchis, Fredrik T. Rantakyr\\\"o, Gael M. Roudier, Gaspard Duch\\^ene, Glenn Schneider, Jason J. Wang, Jeffrey Chilcote, Jennifer Patience, Jessica Arnold, Johan Mazoyer, Juan Sebasti\\'an Bruzzone, Julien Milli, Justin Hom, Katherine B. Follette, Kimberly Ward-Duong, Laurent Pueyo, Marshall D. Perrin, Maxwell A. Millar-Blanchaer, Michael P. Fitzgerald, Pascale Hibon, Pauline Arriaga, Paul Kalas, R\\'emi Soummer, Robert J. De Rosa, Schuyler Wolff, Thomas M. Esposito, Timothy J. Rodigas, Vanessa P. Bailey, Zachary H. Draper","submitted_at":"2020-06-29T15:48:31Z","abstract_excerpt":"We have obtained Gemini Planet Imager (GPI) J-, H-, K1-, and K2-Spec observations of the iconic debris ring around the young, main-sequence star HR 4796A. We applied several point-spread function (PSF) subtraction techniques to the observations (Mask-and-Interpolate, RDI-NMF, RDI-KLIP, and ADI-KLIP) to measure the geometric parameters and the scattering phase function for the disk. To understand the systematic errors associated with PSF subtraction, we also forward-modeled the observations using a Markov Chain Monte Carlo framework and a simple model for the disk. We found that measurements of"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.16131","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2006.16131/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2006.16131","created_at":"2026-07-05T01:22:49.424903+00:00"},{"alias_kind":"arxiv_version","alias_value":"2006.16131v1","created_at":"2026-07-05T01:22:49.424903+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.16131","created_at":"2026-07-05T01:22:49.424903+00:00"},{"alias_kind":"pith_short_12","alias_value":"GOLTYMVESUKB","created_at":"2026-07-05T01:22:49.424903+00:00"},{"alias_kind":"pith_short_16","alias_value":"GOLTYMVESUKBSX2D","created_at":"2026-07-05T01:22:49.424903+00:00"},{"alias_kind":"pith_short_8","alias_value":"GOLTYMVE","created_at":"2026-07-05T01:22:49.424903+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/GOLTYMVESUKBSX2DIAMDTO52PU","json":"https://pith.science/pith/GOLTYMVESUKBSX2DIAMDTO52PU.json","graph_json":"https://pith.science/api/pith-number/GOLTYMVESUKBSX2DIAMDTO52PU/graph.json","events_json":"https://pith.science/api/pith-number/GOLTYMVESUKBSX2DIAMDTO52PU/events.json","paper":"https://pith.science/paper/GOLTYMVE"},"agent_actions":{"view_html":"https://pith.science/pith/GOLTYMVESUKBSX2DIAMDTO52PU","download_json":"https://pith.science/pith/GOLTYMVESUKBSX2DIAMDTO52PU.json","view_paper":"https://pith.science/paper/GOLTYMVE","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2006.16131&json=true","fetch_graph":"https://pith.science/api/pith-number/GOLTYMVESUKBSX2DIAMDTO52PU/graph.json","fetch_events":"https://pith.science/api/pith-number/GOLTYMVESUKBSX2DIAMDTO52PU/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/GOLTYMVESUKBSX2DIAMDTO52PU/action/timestamp_anchor","attest_storage":"https://pith.science/pith/GOLTYMVESUKBSX2DIAMDTO52PU/action/storage_attestation","attest_author":"https://pith.science/pith/GOLTYMVESUKBSX2DIAMDTO52PU/action/author_attestation","sign_citation":"https://pith.science/pith/GOLTYMVESUKBSX2DIAMDTO52PU/action/citation_signature","submit_replication":"https://pith.science/pith/GOLTYMVESUKBSX2DIAMDTO52PU/action/replication_record"}},"created_at":"2026-07-05T01:22:49.424903+00:00","updated_at":"2026-07-05T01:22:49.424903+00:00"}