ODIN: Clustering Analysis of 14,000 Lyα Emitting Galaxies at z=2.4, 3.1, and 4.5
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| Auteurs principaux: | , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
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2025
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| author | Herrera, Danisbel Gawiser, Eric Benda, Barbara Firestone, Nicole Ramakrishnan, Vandana Moon, Byeongha Lee, Kyoung-Soo Park, Changbom Valdes, Francisco Yang, Yujin Artale, M. Celeste Ciardullo, Robin Gronwall, Caryl Guaita, Lucia Hwang, Ho Seong Kennedy, Jacob Kumar, Ankit Zabludoff, Ann |
| author_facet | Herrera, Danisbel Gawiser, Eric Benda, Barbara Firestone, Nicole Ramakrishnan, Vandana Moon, Byeongha Lee, Kyoung-Soo Park, Changbom Valdes, Francisco Yang, Yujin Artale, M. Celeste Ciardullo, Robin Gronwall, Caryl Guaita, Lucia Hwang, Ho Seong Kennedy, Jacob Kumar, Ankit Zabludoff, Ann |
| contents | Lyman Alpha 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 deg$^2$ COSMOS field from the One-hundred-deg$^2$ DECam Imaging in Narrowbands (ODIN) 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 $b$ = $1.72^{+0.26}_{-0.27}, 2.01^{+0.26}_{-0.29},$ and $2.95^{+0.40}_{-0.46}$, for $z$ = 2.4, 3.1, and 4.5, respectively. The median dark matter halo masses inferred from these measurements are $\log(M_{h}/M_{\odot})$ = $11.44^{+0.30}_{-0.28}, 11.13^{+0.26}_{-0.26}$, and $10.85^{+0.24}_{-0.24}$ 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_17824 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | ODIN: Clustering Analysis of 14,000 Lyα Emitting Galaxies at z=2.4, 3.1, and 4.5 Herrera, Danisbel Gawiser, Eric Benda, Barbara Firestone, Nicole Ramakrishnan, Vandana Moon, Byeongha Lee, Kyoung-Soo Park, Changbom Valdes, Francisco Yang, Yujin Artale, M. Celeste Ciardullo, Robin Gronwall, Caryl Guaita, Lucia Hwang, Ho Seong Kennedy, Jacob Kumar, Ankit Zabludoff, Ann Astrophysics of Galaxies Lyman Alpha 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 deg$^2$ COSMOS field from the One-hundred-deg$^2$ DECam Imaging in Narrowbands (ODIN) 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 $b$ = $1.72^{+0.26}_{-0.27}, 2.01^{+0.26}_{-0.29},$ and $2.95^{+0.40}_{-0.46}$, for $z$ = 2.4, 3.1, and 4.5, respectively. The median dark matter halo masses inferred from these measurements are $\log(M_{h}/M_{\odot})$ = $11.44^{+0.30}_{-0.28}, 11.13^{+0.26}_{-0.26}$, and $10.85^{+0.24}_{-0.24}$ 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. |
| title | ODIN: Clustering Analysis of 14,000 Lyα Emitting Galaxies at z=2.4, 3.1, and 4.5 |
| topic | Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2503.17824 |