期刊
PHYSICAL REVIEW LETTERS
卷 109, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.109.041101
关键词
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资金
- U.S. National Science Foundation [AST-0408698, PHY-0355328, AST-0707731, PIRE-0507768, OISE-0530095]
- Berkeley Fellowship for Graduate Study
- NSF [AST-0807790]
- Princeton University
- University of Pennsylvania
- Canada Foundation for Innovation under Compute Canada
- Government of Ontario, Ontario Research Fund-Research Excellence
- University of Toronto
- Alfred P. Sloan Foundation
- National Science Foundation
- U.S. Department of Energy Office of Science
- University of Arizona
- Brazilian Participation Group
- Brookhaven National Laboratory
- University of Cambridge
- Carnegie Mellon University
- University of Florida
- French Participation Group
- German Participation Group
- Harvard University
- Instituto de Astrofisica de Canarias
- Michigan State/NotreDame/JINA Participation Group
- Johns Hopkins University
- Lawrence Berkeley National Laboratory
- Max Planck Institute for Astrophysics
- New Mexico State University
- New York University
- Ohio State University
- Pennsylvania State University
- University of Portsmouth
- Spanish Participation Group
- University of Tokyo
- University of Utah
- Vanderbilt University
- University of Virginia
- University of Washington
- Yale University
- Direct For Mathematical & Physical Scien
- Division Of Astronomical Sciences [1102762] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1214379] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [0855887] Funding Source: National Science Foundation
Using high-resolution microwave sky maps made by the Atacama Cosmology Telescope, we for the first time present strong evidence for motions of galaxy clusters and groups via microwave background temperature distortions due to the kinematic Sunyaev-Zel'dovich effect. Galaxy clusters are identified by their constituent luminous galaxies observed by the Baryon Oscillation Spectroscopic Survey, part of the Sloan Digital Sky Survey III. We measure the mean pairwise momentum of clusters, with a probability of the signal being due to random errors of 0.002, and the signal is consistent with the growth of cosmic structure in the standard model of cosmology.
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