TY - JOUR
T1 - ODIN
T2 - Clustering Analysis of 14,000 Lyα-emitting Galaxies at z = 2.4, 3.1, and 4.5
AU - Herrera, Danisbel
AU - Gawiser, Eric
AU - Benda, Barbara
AU - Firestone, Nicole M.
AU - Ramakrishnan, Vandana
AU - Moon, Byeongha
AU - Lee, Kyoung Soo
AU - Park, Changbom
AU - Valdes, Francisco
AU - Yang, Yujin
AU - Artale, María Celeste
AU - Ciardullo, Robin
AU - Gronwall, Caryl
AU - Guaita, Lucia
AU - Hwang, Ho Seong
AU - Kennedy, Jacob
AU - Kumar, Ankit
AU - Zabludoff, Ann
N1 - Publisher Copyright:
© 2025. The Author(s). Published by the American Astronomical Society.
PY - 2025/8/1
Y1 - 2025/8/1
N2 - Lyα emitters (LAEs) are star-forming galaxies that efficiently probe the spatial distribution of galaxies in the high-redshift Universe. The spatial clustering of LAEs reflects the properties of their individual host dark matter halos, allowing us to study the evolution of the galaxy-halo connection. We analyze the clustering of 5233, 5220, and 3706 LAEs at z = 2.4, 3.1, and 4.5, respectively, in the 9 deg2 COSMOS field from the One-hundred-deg2 DECam Imaging in Narrowbands survey. After correcting for redshift-space distortions, LAE contamination rates, and the integral constraint, the observed angular correlation functions imply linear galaxy bias factors of b = 1.7 2 − 0.27 + 0.26 , 2.0 1 − 0.29 + 0.26 , and 2.9 5 − 0.46 + 0.40 for z = 2.4, 3.1, and 4.5, respectively. The median dark matter halo masses inferred from these measurements are log ( M h / M ⊙ ) = 11.4 4 − 0.28 + 0.30 , 11.1 3 − 0.26 + 0.26 , and 10.8 5 − 0.24 + 0.24 for the three samples, respectively. The analysis also reveals that LAEs occupy roughly 3%-7% of the halos whose clustering strength matches that of the LAEs.
AB - Lyα emitters (LAEs) are star-forming galaxies that efficiently probe the spatial distribution of galaxies in the high-redshift Universe. The spatial clustering of LAEs reflects the properties of their individual host dark matter halos, allowing us to study the evolution of the galaxy-halo connection. We analyze the clustering of 5233, 5220, and 3706 LAEs at z = 2.4, 3.1, and 4.5, respectively, in the 9 deg2 COSMOS field from the One-hundred-deg2 DECam Imaging in Narrowbands survey. After correcting for redshift-space distortions, LAE contamination rates, and the integral constraint, the observed angular correlation functions imply linear galaxy bias factors of b = 1.7 2 − 0.27 + 0.26 , 2.0 1 − 0.29 + 0.26 , and 2.9 5 − 0.46 + 0.40 for z = 2.4, 3.1, and 4.5, respectively. The median dark matter halo masses inferred from these measurements are log ( M h / M ⊙ ) = 11.4 4 − 0.28 + 0.30 , 11.1 3 − 0.26 + 0.26 , and 10.8 5 − 0.24 + 0.24 for the three samples, respectively. The analysis also reveals that LAEs occupy roughly 3%-7% of the halos whose clustering strength matches that of the LAEs.
UR - https://www.scopus.com/pages/publications/105011845666
UR - https://www.scopus.com/pages/publications/105011845666#tab=citedBy
U2 - 10.3847/2041-8213/adec82
DO - 10.3847/2041-8213/adec82
M3 - Article
AN - SCOPUS:105011845666
SN - 2041-8205
VL - 988
JO - Astrophysical Journal Letters
JF - Astrophysical Journal Letters
IS - 2
M1 - L57
ER -