Cosmic Flows surveys and CLUES simulations

被引：14
作者：
Courtois, H. M. [1 ,2 ]
Tully, R. B. [2 ]
机构：
[1] Univ Lyon 1, CNRS, IN2P3, INSU,IPNL, F-69622 Villeurbanne, France
[2] Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA
来源：
ASTRONOMISCHE NACHRICHTEN | 2012年 / 333卷 / 5-6期
基金：
美国国家科学基金会;
关键词：
cosmology: observations; distance scale; galaxies: distances and redshifts; Local Group; LOCAL UNIVERSE; DISTANCES; VELOCITIES;
D O I：
10.1002/asna.201211682
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Cosmic Flows is a program to determine galaxy distances for 30000 galaxies with systematic errors below 2%, almost ten times the number currently known and a five-fold improvement in systematics. The resultant velocity field will provide input for constrained local universe simulations: CLUES (). The observed and the simulated universe are then comparatively studied. This synergy of observations and theory distinguishes the program, and should lead to fundamental discoveries regarding the sources of deviations from the expansion of the universe. Specifically, the program should give a definitive answer to one of the most outstanding unsolved problem in cosmology: the cause of the motion of 630 km s1 of our Galaxy manifested in the microwave background dipole. This paper presents current results with particular emphasis on the great attractor reconstruction ((c) 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
引用
收藏
页码：436 / 440
页数：5
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