MAMMOTH-Subaru IV. Large Scale Structure and Clustering Analysis of Ly$α$ Emitters and Ly$α$ Blobs at $z=2.2-2.3$

• DOI: 10.48550/arxiv.2301.07359
• Publication Date: 2023-01-01
• Authors: Haibin Zhang; Zheng Cai; Mingyu Li; Yongming Liang; Nobunari Kashikawa; Ke Ma; Yunjing Wu; Qiong Li; Sean D. Johnson; Satoshi Kikuta; Masami Ouchi; Xiaohui Fan
• Keywords: Astrophysics of Galaxies (astro-ph.GA); FOS: Physical sciences

We report the large scale structure and clustering analysis of Ly$\alpha$ emitters (LAEs) blobs (LABs) at $z=2.2-2.3$. Using 3,341 LAEs, 117 LABs, 58 bright (Ly$\alpha$ luminosity $L_{\rm Ly\alpha}>10^{43.4}$ erg s$^{-1}$) LABs $z=2.2-2.3$ selected with Subaru/Hyper Suprime-Cam (HSC), we calculate LAE overdensity to investigate $z=2$. show that 74% 78% locate in overdense regions, which is consistent trend found by previous studies generally regions. find one our 8 fields dubbed J1349 contains $39/117\approx33\%$ $22/58\approx38\%$ LABs. A unique $24'\times12'$ ($\approx 40\times20$ comoving Mpc$^2$) region has 12 (8 LABs). By comparing SSA22 most LAB regions studies, $\geq 2$ times more than region. angular correlation functions (ACFs) LAEs field fit ACFs a power-law function measure slopes. The slopes are similar, while $\approx larger slope suggesting clustered faint LAEs. amplitudes higher suggests have 10$ galaxy bias field-to-field variance strong differences numbers fields.