NINE-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE (WMAP) OBSERVATIONS: COSMOLOGICAL PARAMETER RESULTS

被引：4147

作者：

Hinshaw, G. ^{[1
]}

Larson, D. ^{[2
]}

Komatsu, E. ^{[3
,4
,5
,6
]}

Spergel, D. N. ^{[4
,7
]}

Bennett, C. L. ^{[2
]}

Dunkley, J. ^{[8
]}

Nolta, M. R. ^{[9
]}

Halpern, M. ^{[1
]}

Hill, R. S. ^{[10
]}

Odegard, N. ^{[10
]}

Page, L. ^{[11
]}

Smith, K. M. ^{[7
,12
]}

Weiland, J. L. ^{[2
]}

Gold, B. ^{[13
]}

Jarosik, N. ^{[11
]}

Kogut, A. ^{[14
]}

Limon, M. ^{[15
]}

Meyer, S. S. ^{[16
,17
,18
]}

Tucker, G. S. ^{[19
]}

Wollack, E. ^{[14
]}

Wright, E. L. ^{[20
]}

机构：

[1] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada

[2] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

[3] Max Planck Inst Astrophys, D-85741 Garching, Germany

[4] Univ Tokyo, Todai Inst Adv Study, Kavli Inst Phys & Math Universe, Kavli IPMU,WPI, Kashiwa, Chiba 2778583, Japan

[5] Univ Texas Austin, Texas Cosmol Ctr, Austin, TX 78712 USA

[6] Univ Texas Austin, Dept Astron, Austin, TX 78712 USA

[7] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA

[8] Oxford Astrophys, Oxford OX1 3RH, England

[9] Univ Toronto, Canadian Inst Theoret Astrophys, Toronto, ON M5S 3H8, Canada

[10] ADNET Syst Inc, Lanham, MD 20706 USA

[11] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA

[12] Perimeter Inst Theoret Phys, Waterloo, ON N2L 2Y5, Canada

[13] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA

[14] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[15] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA

[16] Univ Chicago, KICP, Dept Astrophys, Chicago, IL 60637 USA

[17] Univ Chicago, KICP, Dept Phys, Chicago, IL 60637 USA

[18] Univ Chicago, EFI, Chicago, IL 60637 USA

[19] Brown Univ, Dept Phys, Providence, RI 02912 USA

[20] UCLA Phys & Astron, Los Angeles, CA 90095 USA

来源：

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES | 2013年 / 208卷 / 02期

基金：

美国国家科学基金会; 加拿大创新基金会;

关键词：

cosmic background radiation; cosmology: observations; dark matter; early universe; instrumentation: detectors; space vehicles; space vehicles: instruments; telescopes; BARYON ACOUSTIC-OSCILLATIONS; HUBBLE-SPACE-TELESCOPE; BACKGROUND POWER SPECTRUM; SUPERNOVA LEGACY SURVEY; BRIGHTEST CLUSTER SAMPLE; MASSIVE GALAXY CLUSTERS; 720 SQUARE DEGREES; SUNYAEV-ZELDOVICH; DARK ENERGY; IA SUPERNOVAE;

D O I：

10.1088/0067-0049/208/2/19

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present cosmological parameter constraints based on the final nine-year Wilkinson Microwave Anisotropy Probe (WMAP) data, in conjunction with a number of additional cosmological data sets. The WMAP data alone, and in combination, continue to be remarkably well fit by a six-parameter Delta CDM model. When WMAP data are combined with measurements of the high-l cosmic microwave background anisotropy, the baryon acoustic oscillation scale, and the Hubble constant, the matter and energy densities, Omega(b)h(2), Omega(c)h(2), and Omega(Lambda), are each determined to a precision of similar to 1.5%. The amplitude of the primordial spectrum is measured to within 3%, and there is now evidence for a tilt in the primordial spectrum at the 5 sigma level, confirming the first detection of tilt based on the five-year WMAP data. At the end of the WMAP mission, the nine-year data decrease the allowable volume of the six-dimensional Delta CDM parameter space by a factor of 68,000 relative to pre-WMAP measurements. We investigate a number of data combinations and show that their Delta CDM parameter fits are consistent. New limits on deviations from the six-parameter model are presented, for example: the fractional contribution of tensor modes is limited to r < 0.13 (95% CL); the spatial curvature parameter is limited to Omega(k) = -0.0027(-0.0038)(+0.0039); the summed mass of neutrinos is limited to Sigma m(nu) < 0.44 eV (95% CL); and the number of relativistic species is found to lie within N-eff = 3.84 +/- 0.40, when the full data are analyzed. The joint constraint on N-eff and the primordial helium abundance, Y-He, agrees with the prediction of standard big bang nucleosynthesis. We compare recent Planck measurements of the Sunyaev-Zel'dovich effect with our seven-year measurements, and show their mutual agreement. Our analysis of the polarization pattern around temperature extrema is updated. This confirms a fundamental prediction of the standard cosmological model and provides a striking illustration of acoustic oscillations and adiabatic initial conditions in the early universe.

引用

页数：25

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