{"paper":{"title":"The Zwicky Transient Facility Census of the Local Universe I: Systematic search for Calcium rich gap transients reveal three related spectroscopic sub-classes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"Abigail Polin, Adam A. Miller, Alexandre Delacroix, Alison Dugas, Anastasios Tzanidakis, Andrew Drake, Anna Y. Q. Ho, Ashot Bagdasaryan, Avishay Gal-Yam, Ben Rusholme, Christopher Cannella, Daniel A. Perley, Daniel Goldstein, Dan Reiley, David Hale, David L. Shupe, David O. Cook, Dmitry Duev, Eliot Quataert, Eran O. Ofek, Eric C. Bellm, Frank J. Masci, George Helou, Ido Irani, Igor Andreoni, Jacob E. Jencson, James D. Neill, Jesper Sollerman, Kishalay De, Lars Bildsten, Leonardo Tartaglia, Lin Yan, Mansi M. Kasliwal, Matthew Hankins, Matthew J. Graham, Ragnhild Lunnan, Reed L. Riddle, Richard Walters, Robin Leadbeater, Russ R. Laher, Sara Frederick, Scott Adams, S. R. Kulkarni, Stephen Kaye, Thomas A. Prince, Thomas Kupfer, U. Christoffer Fremling, V. Zach Golkhou, Yashvi Sharma, Yuhan Yao","submitted_at":"2020-04-20T02:34:09Z","abstract_excerpt":"(Abridged) Using the Zwicky Transient Facility alert stream, we are conducting a large campaign to spectroscopically classify all transients occurring in galaxies in the Census of the Local Universe (CLU) catalog. The aim of the experiment is to construct a spectroscopically complete, volume-limited sample of transients coincident within 100\" of CLU galaxies out to 200 Mpc, and to a depth of 20 mag. We describe the survey design and spectroscopic completeness from the first 16 months of operations. We present results from a systematic search for Calcium rich gap transients in the sample of 22 "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.09029","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/2004.09029/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"}