NAOC Open IR
The clustering of galaxies in the DESI imaging legacy surveys DR8: I. The luminosity and color dependent intrinsic clustering
Wang, ZhaoYu1,2; Xu, HaoJie1,2; Yang, XiaoHu1,2,3,4; Jing, YiPeng1,2,3,4; Wang, Kai5,6; Guo, Hong7; Dong, FuYu8; He, Min1,2
2021-08-01
Source PublicationSCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
ISSN1674-7348
Volume64Issue:8Pages:18
AbstractIn a recent study, we developed a method that models the impact of photometric redshift uncertainty on the two-point correlation function (2PCF). Using this method, we simultaneously obtained both the intrinsic clustering strength and the photometric redshift errors by fitting the projected 2PCF with two integration depths along the line-of-sight. Herein, we apply this method to the Dark Energy Spectroscopic Instrument (DESI) Legacy Imaging Surveys Data Release 8 (LS DR8), which is the largest galaxy sample currently available. We separate the galaxies into 20 samples in eight redshift bins, from z = 0:1 to z = 1:0, and several z-band absolute magnitude bins, with Mz = -20. These galaxies are further divided into red and blue subsamples according to their M-0:5 (r) - M-0:5 (z) colors. We measure the projected 2PCFs for all these galaxy subsamples and fit them using our photometric redshift 2PCF model. We find that the photometric redshift errors are smaller in the red subsamples than in the overall population. In contrast, some systematic photometric redshift errors exist in the blue subsamples, such that some of the subsamples show a significantly enhanced 2PCF on large scales. Therefore, separately focusing only on the red subsamples and on all the subsamples, we find that the biases of the galaxies in these subsamples exhibit clear color, redshift, and luminosity dependencies; the brighter red galaxies at higher redshift are more biased than their bluer and low-redshift counterparts. Apart from the best-fit set of parameters, z and b, from this state-of-the-art photometric redshift survey, we obtain high-precision intrinsic clustering measurements for these 40 red- and all-galaxy subsamples. These measurements, on large and small scales, hold important information regarding cosmology and galaxy formation that will be used in our subsequent probes in this series.
Keyworddark matter large-scale structure cosmology
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Natural Science Foundation ; Shanghai Natural Science Foundation ; 111 Project ; 111 Project ; China Manned Space Project ; China Manned Space Project ; U.S. Department of Energy Office of Science, O ffice of High Energy Physics ; U.S. Department of Energy Office of Science, O ffice of High Energy Physics ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Natural Science Foundation ; Shanghai Natural Science Foundation ; 111 Project ; 111 Project ; China Manned Space Project ; China Manned Space Project ; U.S. Department of Energy Office of Science, O ffice of High Energy Physics ; U.S. Department of Energy Office of Science, O ffice of High Energy Physics ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Natural Science Foundation ; Shanghai Natural Science Foundation ; 111 Project ; 111 Project ; China Manned Space Project ; China Manned Space Project ; U.S. Department of Energy Office of Science, O ffice of High Energy Physics ; U.S. Department of Energy Office of Science, O ffice of High Energy Physics ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Natural Science Foundation ; Shanghai Natural Science Foundation ; 111 Project ; 111 Project ; China Manned Space Project ; China Manned Space Project ; U.S. Department of Energy Office of Science, O ffice of High Energy Physics ; U.S. Department of Energy Office of Science, O ffice of High Energy Physics
DOI10.1007/s11433-021-1707-6
WOS KeywordBARYON ACOUSTIC-OSCILLATIONS ; HALO OCCUPATION DISTRIBUTION ; DARK-MATTER HALOES ; DIGITAL SKY SURVEY ; MAPPING STELLAR CONTENT ; REDSHIFT SURVEY ; POWER-SPECTRUM ; DEEP2 ; MODEL ; MASS
Language英语
Funding ProjectNational Natural Science Foundation of China[11833005] ; National Natural Science Foundation of China[11890691] ; National Natural Science Foundation of China[11890692] ; National Natural Science Foundation of China[11533006] ; National Natural Science Foundation of China[11621303] ; Shanghai Natural Science Foundation[15ZR1446700] ; 111 Project[B20019] ; China Manned Space Project[CMS-CSST-2021-A02] ; U.S. Department of Energy Office of Science, O ffice of High Energy Physics[DE-SC0007914]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Natural Science Foundation ; Shanghai Natural Science Foundation ; 111 Project ; 111 Project ; China Manned Space Project ; China Manned Space Project ; U.S. Department of Energy Office of Science, O ffice of High Energy Physics ; U.S. Department of Energy Office of Science, O ffice of High Energy Physics ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Natural Science Foundation ; Shanghai Natural Science Foundation ; 111 Project ; 111 Project ; China Manned Space Project ; China Manned Space Project ; U.S. Department of Energy Office of Science, O ffice of High Energy Physics ; U.S. Department of Energy Office of Science, O ffice of High Energy Physics ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Natural Science Foundation ; Shanghai Natural Science Foundation ; 111 Project ; 111 Project ; China Manned Space Project ; China Manned Space Project ; U.S. Department of Energy Office of Science, O ffice of High Energy Physics ; U.S. Department of Energy Office of Science, O ffice of High Energy Physics ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Natural Science Foundation ; Shanghai Natural Science Foundation ; 111 Project ; 111 Project ; China Manned Space Project ; China Manned Space Project ; U.S. Department of Energy Office of Science, O ffice of High Energy Physics ; U.S. Department of Energy Office of Science, O ffice of High Energy Physics
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
WOS IDWOS:000679685800001
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/76013
Collection中国科学院国家天文台
Corresponding AuthorYang, XiaoHu; Jing, YiPeng
Affiliation1.Shanghai Jiao Tong Univ, Sch Phys & Astron, Dept Astron, Shanghai 200240, Peoples R China
2.Shanghai Jiao Tong Univ, Shanghai Key Lab Particle Phys & Cosmol, Shanghai 200240, Peoples R China
3.Shanghai Jiao Tong Univ, Tsung Dao Lee Inst, Shanghai 200240, Peoples R China
4.Shanghai Jiao Tong Univ, Key Lab Particle Phys Astrophys & Cosmol, Minist Educ, Shanghai 200240, Peoples R China
5.Tsinghua Univ, Dept Astron, Beijing 100084, Peoples R China
6.Univ Massachusetts, Dept Astron, Amherst, MA 01003 USA
7.Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, Shanghai 200030, Peoples R China
8.Korea Inst Adv Study, Sch Phys, Seoul 02455, South Korea
Recommended Citation
GB/T 7714
Wang, ZhaoYu,Xu, HaoJie,Yang, XiaoHu,et al. The clustering of galaxies in the DESI imaging legacy surveys DR8: I. The luminosity and color dependent intrinsic clustering[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2021,64(8):18.
APA Wang, ZhaoYu.,Xu, HaoJie.,Yang, XiaoHu.,Jing, YiPeng.,Wang, Kai.,...&He, Min.(2021).The clustering of galaxies in the DESI imaging legacy surveys DR8: I. The luminosity and color dependent intrinsic clustering.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,64(8),18.
MLA Wang, ZhaoYu,et al."The clustering of galaxies in the DESI imaging legacy surveys DR8: I. The luminosity and color dependent intrinsic clustering".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 64.8(2021):18.
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