{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2023:D2NLPPUCMMTKINGX2H63J74BSB","short_pith_number":"pith:D2NLPPUC","schema_version":"1.0","canonical_sha256":"1e9ab7be826326a434d7d1fdb4ff81907999e2c247828ffc988d2cfa6f151e38","source":{"kind":"arxiv","id":"2308.12450","version":2},"attestation_state":"computed","paper":{"title":"Ground-based and JWST Observations of SN 2022pul: II. Evidence from Nebular Spectroscopy for a Violent Merger in a Peculiar Type-Ia Supernova","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"Abigail Polin, Alejandro Clocchiatti, Alexei V. Filippenko, Andreas Flors, Armin Rest, Barnabas Barna, Benjamin J. Shappee, Carles Badenes, Cassidy Mihalenko, Cesar Rojas-Bravo, Chris Ashall, Conor Larison, Craig Pellegrino, Curtis McCully, D. Andrew Howell, David A. Coulter, David J. Sand, D. John Hillier, Estefania Padilla Gonzalez, Franz-Josef Hambsch, Georgios Dimitriadis, Giacomo Terreran, Griffin Hosseinzadeh, Jacco H. Terwel, James M. Derkacy, J. Craig Wheeler, Jeniveve Pearson, Jennifer E. Andrews, Jing Lu, Joel Johansson, John P. Hughes, John T. O'Brien, Joseph Farah, Jozsef Vinko, Justin D. R. Pierel, Justyn Maund, Kate Maguire, Katie Auchettl, K. Azalee Bostroem, Keiichi Maeda, Kirsty Taggart, Kyle Medler, Kyle W. Davis, Lifan Wang, Lindsey A. Kwok, Lluis Galbany, Louis-Gregory Strolger, Luc Dessart, Manisha Shrestha, Maria Jose Bustamante-Rosell, Matthew R. Siebert, Maxime Deckers, Maximilian Stritzinger, Max J. Brenner Newman, Megan Newsome, Melissa Shahbandeh, Michaela Schwab, Michael Tucker, Nathan Smith, Nicholas Suntzeff, Nidia Morrell, Or Graur, Ori D. Fox, Peter Garnavich, Peter Hoeflich, Ruediger Pakmor, Ryan J. Foley, Samaporn Tinyanont, Saurabh W. Jha, Stefano Valenti, Stephane Blondin, Tamas Szalai, Tea Temim, Thomas de Jaeger, Thomas G. Brink, Weikang Zheng, Wolfgang E. Kerzendorf, Xavier K. Le Saux, Yi Yang, Yize Dong, Yssavo Camacho-Neves","submitted_at":"2023-08-23T22:13:53Z","abstract_excerpt":"We present an analysis of ground-based and JWST observations of SN~2022pul, a peculiar \"03fg-like\" (or \"super-Chandrasekhar\") Type Ia supernova (SN Ia), in the nebular phase at 338d post explosion. Our combined spectrum continuously covers 0.4--14 $\\mu$m and includes the first mid-infrared spectrum of an 03fg-like SN Ia. Compared to normal SN Ia 2021aefx, SN 2022pul exhibits a lower mean ionization state, asymmetric emission-line profiles, stronger emission from the intermediate-mass elements (IMEs) argon and calcium, weaker emission from iron-group elements (IGEs), and the first unambiguous 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":"2308.12450","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-08-23T22:13:53Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"21d2c4d515d065dc2503c4532a16a63f39ba9f171e2db7dbafc5cad1ff7b6775","abstract_canon_sha256":"f717141dfb8a89f44376bea50fd1f97b8698612ecd2fae80f80ee0794bcac028"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:22:21.181587Z","signature_b64":"k2H3lJAA/2YwSuPVVUM1H/NQiVlgK7ePBuA5QyKSe5ylt/02psT+dlrg6morx1ewXpRmD21opk7qiibKSBdxCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1e9ab7be826326a434d7d1fdb4ff81907999e2c247828ffc988d2cfa6f151e38","last_reissued_at":"2026-07-05T08:22:21.181102Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:22:21.181102Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Ground-based and JWST Observations of SN 2022pul: II. Evidence from Nebular Spectroscopy for a Violent Merger in a Peculiar Type-Ia Supernova","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"Abigail Polin, Alejandro Clocchiatti, Alexei V. Filippenko, Andreas Flors, Armin Rest, Barnabas Barna, Benjamin J. Shappee, Carles Badenes, Cassidy Mihalenko, Cesar Rojas-Bravo, Chris Ashall, Conor Larison, Craig Pellegrino, Curtis McCully, D. Andrew Howell, David A. Coulter, David J. Sand, D. John Hillier, Estefania Padilla Gonzalez, Franz-Josef Hambsch, Georgios Dimitriadis, Giacomo Terreran, Griffin Hosseinzadeh, Jacco H. Terwel, James M. Derkacy, J. Craig Wheeler, Jeniveve Pearson, Jennifer E. Andrews, Jing Lu, Joel Johansson, John P. Hughes, John T. O'Brien, Joseph Farah, Jozsef Vinko, Justin D. R. Pierel, Justyn Maund, Kate Maguire, Katie Auchettl, K. Azalee Bostroem, Keiichi Maeda, Kirsty Taggart, Kyle Medler, Kyle W. Davis, Lifan Wang, Lindsey A. Kwok, Lluis Galbany, Louis-Gregory Strolger, Luc Dessart, Manisha Shrestha, Maria Jose Bustamante-Rosell, Matthew R. Siebert, Maxime Deckers, Maximilian Stritzinger, Max J. Brenner Newman, Megan Newsome, Melissa Shahbandeh, Michaela Schwab, Michael Tucker, Nathan Smith, Nicholas Suntzeff, Nidia Morrell, Or Graur, Ori D. Fox, Peter Garnavich, Peter Hoeflich, Ruediger Pakmor, Ryan J. Foley, Samaporn Tinyanont, Saurabh W. Jha, Stefano Valenti, Stephane Blondin, Tamas Szalai, Tea Temim, Thomas de Jaeger, Thomas G. Brink, Weikang Zheng, Wolfgang E. Kerzendorf, Xavier K. Le Saux, Yi Yang, Yize Dong, Yssavo Camacho-Neves","submitted_at":"2023-08-23T22:13:53Z","abstract_excerpt":"We present an analysis of ground-based and JWST observations of SN~2022pul, a peculiar \"03fg-like\" (or \"super-Chandrasekhar\") Type Ia supernova (SN Ia), in the nebular phase at 338d post explosion. Our combined spectrum continuously covers 0.4--14 $\\mu$m and includes the first mid-infrared spectrum of an 03fg-like SN Ia. Compared to normal SN Ia 2021aefx, SN 2022pul exhibits a lower mean ionization state, asymmetric emission-line profiles, stronger emission from the intermediate-mass elements (IMEs) argon and calcium, weaker emission from iron-group elements (IGEs), and the first unambiguous d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2308.12450","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2308.12450/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":"2308.12450","created_at":"2026-07-05T08:22:21.181156+00:00"},{"alias_kind":"arxiv_version","alias_value":"2308.12450v2","created_at":"2026-07-05T08:22:21.181156+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2308.12450","created_at":"2026-07-05T08:22:21.181156+00:00"},{"alias_kind":"pith_short_12","alias_value":"D2NLPPUCMMTK","created_at":"2026-07-05T08:22:21.181156+00:00"},{"alias_kind":"pith_short_16","alias_value":"D2NLPPUCMMTKINGX","created_at":"2026-07-05T08:22:21.181156+00:00"},{"alias_kind":"pith_short_8","alias_value":"D2NLPPUC","created_at":"2026-07-05T08:22:21.181156+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/D2NLPPUCMMTKINGX2H63J74BSB","json":"https://pith.science/pith/D2NLPPUCMMTKINGX2H63J74BSB.json","graph_json":"https://pith.science/api/pith-number/D2NLPPUCMMTKINGX2H63J74BSB/graph.json","events_json":"https://pith.science/api/pith-number/D2NLPPUCMMTKINGX2H63J74BSB/events.json","paper":"https://pith.science/paper/D2NLPPUC"},"agent_actions":{"view_html":"https://pith.science/pith/D2NLPPUCMMTKINGX2H63J74BSB","download_json":"https://pith.science/pith/D2NLPPUCMMTKINGX2H63J74BSB.json","view_paper":"https://pith.science/paper/D2NLPPUC","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2308.12450&json=true","fetch_graph":"https://pith.science/api/pith-number/D2NLPPUCMMTKINGX2H63J74BSB/graph.json","fetch_events":"https://pith.science/api/pith-number/D2NLPPUCMMTKINGX2H63J74BSB/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/D2NLPPUCMMTKINGX2H63J74BSB/action/timestamp_anchor","attest_storage":"https://pith.science/pith/D2NLPPUCMMTKINGX2H63J74BSB/action/storage_attestation","attest_author":"https://pith.science/pith/D2NLPPUCMMTKINGX2H63J74BSB/action/author_attestation","sign_citation":"https://pith.science/pith/D2NLPPUCMMTKINGX2H63J74BSB/action/citation_signature","submit_replication":"https://pith.science/pith/D2NLPPUCMMTKINGX2H63J74BSB/action/replication_record"}},"created_at":"2026-07-05T08:22:21.181156+00:00","updated_at":"2026-07-05T08:22:21.181156+00:00"}