ODIN: Clustering Analysis of 14,000 Lyα-emitting Galaxies at z = 2.4, 3.1, and 4.5
Ly α 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 connectio...
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2025-01-01
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| Series: | The Astrophysical Journal Letters |
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| Online Access: | https://doi.org/10.3847/2041-8213/adec82 |
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| author | Danisbel Herrera Eric Gawiser Barbara Benda Nicole M. Firestone Vandana Ramakrishnan Byeongha Moon Kyoung-Soo Lee Changbom Park Francisco Valdes Yujin Yang María Celeste Artale Robin Ciardullo Caryl Gronwall Lucia Guaita Ho Seong Hwang Jacob Kennedy Ankit Kumar Ann Zabludoff |
| author_facet | Danisbel Herrera Eric Gawiser Barbara Benda Nicole M. Firestone Vandana Ramakrishnan Byeongha Moon Kyoung-Soo Lee Changbom Park Francisco Valdes Yujin Yang María Celeste Artale Robin Ciardullo Caryl Gronwall Lucia Guaita Ho Seong Hwang Jacob Kennedy Ankit Kumar Ann Zabludoff |
| author_sort | Danisbel Herrera |
| collection | DOAJ |
| description | Ly α 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 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 ${\mathrm{log}}({M}_{h}/{M}_{\odot })$ = $11.4{4}_{-0.28}^{+0.30},\,11.1{3}_{-0.26}^{+0.26},\,\mathrm{and}\,10.8{5}_{-0.24}^{+0.24}$ 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. |
| format | Article |
| id | doaj-art-b117e260bbff4a1998305c7d38eefb89 |
| institution | DOAJ |
| issn | 2041-8205 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal Letters |
| spelling | doaj-art-b117e260bbff4a1998305c7d38eefb892025-08-20T03:09:16ZengIOP PublishingThe Astrophysical Journal Letters2041-82052025-01-019882L5710.3847/2041-8213/adec82ODIN: Clustering Analysis of 14,000 Lyα-emitting Galaxies at z = 2.4, 3.1, and 4.5Danisbel Herrera0https://orcid.org/0000-0003-2986-8594Eric Gawiser1https://orcid.org/0000-0003-1530-8713Barbara Benda2Nicole M. Firestone3https://orcid.org/0000-0002-9811-2443Vandana Ramakrishnan4https://orcid.org/0000-0002-9176-7252Byeongha Moon5https://orcid.org/0009-0008-4022-3870Kyoung-Soo Lee6https://orcid.org/0000-0003-3004-9596Changbom Park7https://orcid.org/0000-0001-9521-6397Francisco Valdes8https://orcid.org/0000-0001-5567-1301Yujin Yang9https://orcid.org/0000-0003-3078-2763María Celeste Artale10https://orcid.org/0000-0003-0570-785XRobin Ciardullo11https://orcid.org/0000-0002-1328-0211Caryl Gronwall12https://orcid.org/0000-0001-6842-2371Lucia Guaita13https://orcid.org/0000-0002-4902-0075Ho Seong Hwang14https://orcid.org/0000-0003-3428-7612Jacob Kennedy15https://orcid.org/0009-0001-4745-3555Ankit Kumar16https://orcid.org/0000-0001-6270-3527Ann Zabludoff17https://orcid.org/0000-0001-6047-8469Department of Physics and Astronomy, Rutgers, the State University of New Jersey , Piscataway, NJ 08854, USADepartment of Physics and Astronomy, Rutgers, the State University of New Jersey , Piscataway, NJ 08854, USA; School of Natural Sciences, Institute for Advanced Study , Princeton, NJ 08540, USADepartment of Physics, University of Washington , Seattle, WA 98105, USADepartment of Physics and Astronomy, Rutgers, the State University of New Jersey , Piscataway, NJ 08854, USADepartment of Physics and Astronomy, Purdue University , 525 Northwestern Ave., West Lafayette, IN 47906, USAKorea Astronomy and Space Science Institute , 776 Daedeokdae-ro, Yuseong-gu, Daejeon 34055, Republic of KoreaDepartment of Physics and Astronomy, Purdue University , 525 Northwestern Ave., West Lafayette, IN 47906, USAKorea Institute for Advanced Study , 85 Hoegi-ro, Dongdaemun-gu, Seoul 02455, Republic of KoreaNSF’s National Optical-Infrared Astronomy Research Laboratory , 950 N. Cherry Ave., Tucson, AZ 85719, USAKorea Astronomy and Space Science Institute , 776 Daedeokdae-ro, Yuseong-gu, Daejeon 34055, Republic of KoreaUniversidad Andres Bello , Facultad de Ciencias Exactas, Departamento de Fisica, Instituto de Astrofisica, Fernandez Concha 700, Las Condes, Santiago (RM), ChileDepartment of Astronomy & Astrophysics, The Pennsylvania State University , University Park, PA 16802, USA; Institute for Gravitation and the Cosmos, The Pennsylvania State University , University Park, PA 16802, USADepartment of Astronomy & Astrophysics, The Pennsylvania State University , University Park, PA 16802, USA; Institute for Gravitation and the Cosmos, The Pennsylvania State University , University Park, PA 16802, USAUniversidad Andres Bello , Facultad de Ciencias Exactas, Departamento de Fisica y Astronomia, Instituto de Astrofisica, Fernandez Concha 700, Las Condes, Santiago RM, Chile; Millennium Nucleus for Galaxies , ChileDepartment of Physics and Astronomy, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea; SNU Astronomy Research Center, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea; Australian Astronomical Optics—Macquarie University , 105 Delhi Rd., North Ryde, NSW 2113, AustraliaDepartment of Physics and Astronomy, Rutgers, the State University of New Jersey , Piscataway, NJ 08854, USAUniversidad Andres Bello , Facultad de Ciencias Exactas, Departamento de Fisica y Astronomia, Instituto de Astrofisica, Fernandez Concha 700, Las Condes, Santiago RM, ChileDepartment of Astronomy, University of Arizona , 933 N. Cherry Ave., Rm. N204, Tucson, AZ 85721, USALy α 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 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 ${\mathrm{log}}({M}_{h}/{M}_{\odot })$ = $11.4{4}_{-0.28}^{+0.30},\,11.1{3}_{-0.26}^{+0.26},\,\mathrm{and}\,10.8{5}_{-0.24}^{+0.24}$ 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.https://doi.org/10.3847/2041-8213/adec82Galaxy evolutionHigh-redshift galaxiesLyα galaxiesLarge-scale structure of the universe |
| spellingShingle | Danisbel Herrera Eric Gawiser Barbara Benda Nicole M. Firestone Vandana Ramakrishnan Byeongha Moon Kyoung-Soo Lee Changbom Park Francisco Valdes Yujin Yang María Celeste Artale Robin Ciardullo Caryl Gronwall Lucia Guaita Ho Seong Hwang Jacob Kennedy Ankit Kumar Ann Zabludoff ODIN: Clustering Analysis of 14,000 Lyα-emitting Galaxies at z = 2.4, 3.1, and 4.5 The Astrophysical Journal Letters Galaxy evolution High-redshift galaxies Lyα galaxies Large-scale structure of the universe |
| title | ODIN: Clustering Analysis of 14,000 Lyα-emitting Galaxies at z = 2.4, 3.1, and 4.5 |
| title_full | ODIN: Clustering Analysis of 14,000 Lyα-emitting Galaxies at z = 2.4, 3.1, and 4.5 |
| title_fullStr | ODIN: Clustering Analysis of 14,000 Lyα-emitting Galaxies at z = 2.4, 3.1, and 4.5 |
| title_full_unstemmed | ODIN: Clustering Analysis of 14,000 Lyα-emitting Galaxies at z = 2.4, 3.1, and 4.5 |
| title_short | ODIN: Clustering Analysis of 14,000 Lyα-emitting Galaxies at z = 2.4, 3.1, and 4.5 |
| title_sort | odin clustering analysis of 14 000 lyα emitting galaxies at z 2 4 3 1 and 4 5 |
| topic | Galaxy evolution High-redshift galaxies Lyα galaxies Large-scale structure of the universe |
| url | https://doi.org/10.3847/2041-8213/adec82 |
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