A detection of the integrated Sachs-Wolfe effect

被引：48
作者：
Boughn, SP [1 ]
Crittenden, RG
机构：
[1] Haverford Coll, Dept Astron, Haverford, PA 19041 USA
[2] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA
[3] Univ Portsmouth, Inst Cosmol & Gravitat, Portsmouth PO1 2EG, Hants, England
来源：
NEW ASTRONOMY REVIEWS | 2005年 / 49卷 / 2-6期
关键词：
cosmic microwave background; X-rays : general; large-scale structure of the universe;
D O I：
10.1016/j.newar.2005.01.005
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We have detected statistically significant correlations between the cosmic microwave background and two tracers of large-scale structure, the HEAO1 A2 full sky hard X-ray map [Boldt, E., 1987. Phys. Rep. 146, 215] and the NVSS 1.4 GHz, nearly full sky radio galaxy survey [Condon, J., et al., 1998. Astron. J. 115, 1693]. The level of correlations in these maps is consistent with that predicted for the integrated Sachs-Wolfe (ISW) effect in the context of a Lambda CDM cosmological model and, therefore, provides independent evidence for a cosmological constant. A maximum likelihood fit to the amplitude of the ISW effect relative to the predicted value is 1.13 +/- 0.35 (statistical error only). (C) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：75 / 78
页数：4
相关论文
共 11 条
[1]  
BARRIS BJ, 2003, APJ, V598, P102
[2]   First-year Wilkinson Microwave Anisotropy Probe (WMAP) observations:: Preliminary maps and basic results [J].
Bennett, CL ;
Halpern, M ;
Hinshaw, G ;
Jarosik, N ;
Kogut, A ;
Limon, M ;
Meyer, SS ;
Page, L ;
Spergel, DN ;
Tucker, GS ;
Wollack, E ;
Wright, EL ;
Barnes, C ;
Greason, MR ;
Hill, RS ;
Komatsu, E ;
Nolta, MR ;
Odegard, N ;
Peiris, HV ;
Verde, L ;
Weiland, JL .
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2003, 148 (01) :1-27
[3]   A correlation between the cosmic microwave background and large-scale structure in the Universe [J].
Boughn, S ;
Crittenden, R .
NATURE, 2004, 427 (6969) :45-47
[4]  
BOUGHN S, 2003, APJ, V580, P672
[5]   The large-scale bias of the hard X-ray background [J].
Boughn, SP ;
Crittenden, RG .
ASTROPHYSICAL JOURNAL, 2004, 612 (02) :647-651
[6]   Cross correlation of the cosmic microwave background with radio sources: Constraints on an accelerating universe [J].
Boughn, SP ;
Crittenden, RG .
PHYSICAL REVIEW LETTERS, 2002, 88 (02) :4-213024
[7]   The NRAO VLA Sky Survey [J].
Condon, JJ ;
Cotton, WD ;
Greisen, EW ;
Yin, QF ;
Perley, RA ;
Taylor, GB ;
Broderick, JJ .
ASTRONOMICAL JOURNAL, 1998, 115 (05) :1693-1716
[8]  
COWIE, 2003, APJ, V584, pL57
[9]   Looking for a cosmological constant with the Rees-Sciama effect [J].
Crittenden, RG ;
Turok, N .
PHYSICAL REVIEW LETTERS, 1996, 76 (04) :575-578
[10]  
DUNLOP JS, 1990, MON NOT R ASTRON SOC, V247, P19
12