{"paper":{"title":"A New Constraint on Reionization from Evolution of the Ly$\\alpha$ Luminosity Function at $z\\sim6-7$ Probed by a Deep Census of $z=7.0$ Ly$\\alpha$ Emitter Candidates to 0.3 $L^*$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Akie Ichikawa, Akifumi Seko, Akira Konno, Fumiaki Nakata, Jun Toshikawa, Kazuaki Ota, Masafusa Onoue, Masakazu A.R. Kobayashi, Masanori Iye, Nobunari Kashikawa, Takatoshi Shibuya, Tomonori Totani, Yoshinobu Fudamoto","submitted_at":"2017-03-07T18:14:35Z","abstract_excerpt":"We detect 20 $z=7.0$ Ly$\\alpha$ emitter (LAE) candidates to $L({\\rm Ly}\\alpha) \\geq 2 \\times 10^{42}$ erg s$^{-1}$ or $0.3$ $L^*_{z=7}$ and in $6.1\\times 10^5$ Mpc$^3$ volume in the Subaru Deep Field and the Subaru/XMM-Newton Deep Survey field by 82 and 37 hours of Subaru Suprime-Cam narrowband NB973 and reddest optical $y$-band imaging. We compare their Ly$\\alpha$ and UV luminosity functions (LFs) and densities and Ly$\\alpha$ equivalent widths (EWs) to those of $z=5.7$, 6.6 and 7.3 LAEs from previous Suprime-Cam surveys. The Ly$\\alpha$ LF (density) rapidly declines by a factor of $\\times$1.5 "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.02501","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"}