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UNIT project: Universe N-body simulations for the Investigation of Theoretical models from galaxy surveys

文献类型：期刊论文

作者Chuang, Chia-Hsun2; Yepes, Gustavo3,4; Kitaura, Francisco-Shu1,5; Pellejero-Ibanez, Marcos1,5; Rodriguez-Torres, Sergio3,4; Feng, Yu6; Metcalf, Robert Benton7,8; Wechsler, Risa H.2,9,10; Zhao, Cheng11,12; To, Chun-Hao2,9,10
刊名MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期2019-07-01
卷号487期号:1页码:48-59
关键词large-scale structure of the Universe
ISSN号0035-8711
DOI10.1093/mnras/stz1233
英文摘要We present the UNIT N-body cosmological simulations project, designed to provide precise predictions for non-linear statistics of the galaxy distribution. We focus on characterizing statistics relevant to emission line and luminous red galaxies in the current and upcoming generation of galaxy surveys. We use a suite of precise particle mesh simulations (FASTPM) as well as with full N-body calculations with a mass resolution of similar to 1.2 x 10(9) h(-1)M(circle dot) to investigate the recently suggested technique of Angulo and Pontzen to suppress the variance of cosmological simulations. We study redshift-space distortions, cosmic voids, higher order statistics from z = 2 down to 0. We find that both two-and three-point statistics are unbiased. Over the scales of interest for baryon acoustic oscillations and redshift-space distortions, we find that the variance is greatly reduced in the two-point statistics and in the cross-correlation between haloes and cosmic voids, but is not reduced significantly for the three-point statistics. We demonstrate that the accuracy of the two-point correlation function for a galaxy survey with effective volume of 20 (h(-1)Gpc)(3) is improved by about a factor of 40, indicating that two pairs of simulations with a volume of 1 (h(-1)Gpc)(3) lead to the equivalent variance of similar to 150 such simulations. The N-body simulations presented here thus provide an effective survey volume of about seven times the effective survey volume of Dark Energy Spectroscopic Instrument or Euclid. The data from this project, including dark matter fields, halo catalogues, and their clustering statistics, are publicly available.
WOS关键词DARK-MATTER
资助项目PRACE[2016163937] ; MINECO/FEDER (Spain)[AYA2015-63810P] ; Spanish Red Consolider MultiDark[FPA2017-90566-REDC] ; National Natural Science Foundation of China (NSFC)[11673025] ; European Research Council through the COSFORM Research Grant[670193] ; U.S. Department of Energy[DE-AC02-76SF00515] ; National Energy Research Scientific Computing Center (NERSC), a U.S. Department of Energy Office of Science User Facility[DE-AC02-05CH11231] ; [RYC2015-18693] ; [SEV-2015-0548] ; [AYA2017-89891-P]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000474907100005
出版者OXFORD UNIV PRESS
资助机构PRACE ; PRACE ; MINECO/FEDER (Spain) ; MINECO/FEDER (Spain) ; Spanish Red Consolider MultiDark ; Spanish Red Consolider MultiDark ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; European Research Council through the COSFORM Research Grant ; European Research Council through the COSFORM Research Grant ; U.S. Department of Energy ; U.S. Department of Energy ; National Energy Research Scientific Computing Center (NERSC), a U.S. Department of Energy Office of Science User Facility ; National Energy Research Scientific Computing Center (NERSC), a U.S. Department of Energy Office of Science User Facility ; PRACE ; PRACE ; MINECO/FEDER (Spain) ; MINECO/FEDER (Spain) ; Spanish Red Consolider MultiDark ; Spanish Red Consolider MultiDark ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; European Research Council through the COSFORM Research Grant ; European Research Council through the COSFORM Research Grant ; U.S. Department of Energy ; U.S. Department of Energy ; National Energy Research Scientific Computing Center (NERSC), a U.S. Department of Energy Office of Science User Facility ; National Energy Research Scientific Computing Center (NERSC), a U.S. Department of Energy Office of Science User Facility ; PRACE ; PRACE ; MINECO/FEDER (Spain) ; MINECO/FEDER (Spain) ; Spanish Red Consolider MultiDark ; Spanish Red Consolider MultiDark ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; European Research Council through the COSFORM Research Grant ; European Research Council through the COSFORM Research Grant ; U.S. Department of Energy ; U.S. Department of Energy ; National Energy Research Scientific Computing Center (NERSC), a U.S. Department of Energy Office of Science User Facility ; National Energy Research Scientific Computing Center (NERSC), a U.S. Department of Energy Office of Science User Facility ; PRACE ; PRACE ; MINECO/FEDER (Spain) ; MINECO/FEDER (Spain) ; Spanish Red Consolider MultiDark ; Spanish Red Consolider MultiDark ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; European Research Council through the COSFORM Research Grant ; European Research Council through the COSFORM Research Grant ; U.S. Department of Energy ; U.S. Department of Energy ; National Energy Research Scientific Computing Center (NERSC), a U.S. Department of Energy Office of Science User Facility ; National Energy Research Scientific Computing Center (NERSC), a U.S. Department of Energy Office of Science User Facility
源URL[http://ir.bao.ac.cn/handle/114a11/26993]  
专题中国科学院国家天文台
通讯作者Chuang, Chia-Hsun; Yepes, Gustavo
作者单位1.ULL, Dept Astrofis, E-38206 Tenerife, Spain
2.Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, 452 Lomita Mall, Stanford, CA 94305 USA
3.Univ Autonoma Madrid, Dept Fis Teor, Fac Ciencias, Modulo 8, E-28049 Madrid, Spain
4.Univ Autonoma Madrid, CIAFF, Fac Ciencias, E-28049 Madrid, Spain
5.IAC, C Via Lactea,S-N, E-38200 Tenerife, Spain
6.Univ Calif Berkeley, Dept Phys, Berkeley Ctr Cosmol Phys, Berkeley, CA 94720 USA
7.Alma Mater Studiorum Univ Bologna, Dipartimento Fis & Astron, Via Gobetti 93-2, I-40129 Bologna, Italy
8.INAF Osservatorio Astrofis & Sci Spazio Bologna, Via Gobetti 93-3, I-40129 Bologna, Italy
9.Stanford Univ, Dept Phys, 382 Via Pueblo Mall, Stanford, CA 94305 USA
10.SLAC Natl Accelerator Lab, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA
推荐引用方式
GB/T 7714		 Chuang, Chia-Hsun,Yepes, Gustavo,Kitaura, Francisco-Shu,et al. UNIT project: Universe N-body simulations for the Investigation of Theoretical models from galaxy surveys[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2019,487(1):48-59.
APA Chuang, Chia-Hsun.,Yepes, Gustavo.,Kitaura, Francisco-Shu.,Pellejero-Ibanez, Marcos.,Rodriguez-Torres, Sergio.,...&Reyes, Guillermo.(2019).UNIT project: Universe N-body simulations for the Investigation of Theoretical models from galaxy surveys.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,487(1),48-59.
MLA Chuang, Chia-Hsun,et al."UNIT project: Universe N-body simulations for the Investigation of Theoretical models from galaxy surveys".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 487.1(2019):48-59.

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来源：国家天文台

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