Correlating the CMB with luminous red galaxies: The integrated Sachs-Wolfe effect

被引:103
作者
Padmanabhan, N
Hirata, CM
Seljak, U
Schlegel, DJ
Brinkmann, J
Schneider, DP
机构
[1] Princeton Univ, Joseph Henry Labs, Princeton, NJ 08544 USA
[2] Abdus Salaam Int Ctr Theoret Phys, I-34014 Trieste, Italy
[3] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA
[4] Apache Point Observ, Sunspot, NM 88349 USA
[5] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA
来源
PHYSICAL REVIEW D | 2005年 / 72卷 / 04期
关键词
D O I
10.1103/PhysRevD.72.043525
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present a 2.5 sigma detection of the Integrated Sachs-Wolfe (ISW) effect and discuss the constraints it places on cosmological parameters. We cross correlate microwave temperature maps from the Wilkinson microwave anisotropy probe (WMAP) satellite with a 4000 deg(2) luminous red galaxy (LRG) overdensity map measured by the Sloan Digital Sky Survey. These galaxies have accurate photometric redshifts (Delta z similar to 0.03) and an approximately volume limited redshift distribution from z similar to 0.2 to z similar to 0.6 well suited to detecting the ISW effect. Accurate photometric redshifts allow us to perform a reliable autocorrelation analysis of the LRGs, eliminating the uncertainty in the galaxy bias, and combined with the cross correlation signal, constrains cosmological parameters-in particular, the matter density. We use a minimum-variance power spectrum estimator that optimally weights the data according to expected theoretical templates. We find a 2.5 sigma signal in the Ka, Q, V, and W WMAP bands, after combining the information from multipoles 2 <= l < 400. This is consistent with the expected amplitude of the ISW effect but requires a lower matter density than is usually assumed: the amplitude, parametrized by the galaxy bias assuming Omega(M)=0.3, Omega(Lambda)=0.7, and sigma(8)=0.9, is b(g)=4.05 +/- 1.54 for V band, with similar results for the other bands. This should be compared to b(g)=1.82 +/- 0.02 from the autocorrelation analysis. These data provide only a weak confirmation (2.5 sigma) of dark energy but provide a significant upper limit: Omega(Lambda)=0.80(-0.06)(+0.03)(1 sigma)(-0.19)(+0.05)(2 sigma), assuming a cosmology with Omega(M)+Omega(Lambda)=1, Omega(b)=0.05, sigma(8)=0.9, and w=-1. The weak cross correlation signal rules out low matter density/high dark energy density universes and, in combination with other data, strongly constrains models with w <-1.3. We provide a simple prescription to incorporate these constraints into cosmological parameter estimation methods for (Omega(M),sigma(8),w). We find no evidence for a systematic contamination of ISW signal, either from galactic or extragalactic sources, but we do detect some large statistical fluctuations on smaller scales that could affect analyses without the template weighting.
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页码:1 / 16
页数:16
相关论文
共 60 条
[1]   The second data release of the Sloan Digital Sky Survey [J].
Abazajian, K ;
Adelman-McCarthy, JK ;
Agüeros, MA ;
Allam, SS ;
Kurt ;
Anderson, SJ ;
Anderson, SF ;
Annis, J ;
Bahcall, NA ;
Baldry, IK ;
Bastian, S ;
Berlind, A ;
Bernardi, M ;
Blanton, MR ;
Bochanski, JJ ;
Boroski, WN ;
Briggs, JW ;
Brinkmann, J ;
Brunner, RJ ;
Budavári, T ;
Carey, LN ;
Carliles, S ;
Castander, FJ ;
Connolly, AJ ;
Csabai, I ;
Doi, M ;
Dong, F ;
Eisenstein, DJ ;
Evans, ML ;
Fan, XH ;
Finkbeiner, DP ;
Friedman, SD ;
Frieman, JA ;
Fukugita, M ;
Gal, RR ;
Gillespie, B ;
Glazebrook, K ;
Gray, J ;
Grebel, EK ;
Gunn, JE ;
Gurbani, VK ;
Hall, PB ;
Hamabe, M ;
Harris, FH ;
Harris, HC ;
Harvanek, M ;
Heckman, TM ;
Hendry, JS ;
Hennessy, GS ;
Hindsley, RB .
ASTRONOMICAL JOURNAL, 2004, 128 (01) :502-512
[2]   The first data release of the Sloan Digital Sky Survey [J].
Abazajian, K ;
Adelman-McCarthy, JK ;
Agüeros, MA ;
Allam, SS ;
Anderson, SF ;
Annis, J ;
Bahcall, NA ;
Baldry, IK ;
Bastian, S ;
Berlind, A ;
Bernardi, M ;
Blanton, MR ;
Blythe, N ;
Bochanski, JJ ;
Boroski, WN ;
Brewington, H ;
Briggs, JW ;
Brinkmann, J ;
Brunner, RJ ;
Budavári, T ;
Carey, LN ;
Carr, MA ;
Castander, FJ ;
Chiu, K ;
Collinge, MJ ;
Connolly, AJ ;
Covey, KR ;
Csabai, I ;
Dalcanton, JJ ;
Dodelson, S ;
Doi, M ;
Dong, F ;
Eisenstein, DJ ;
Evans, ML ;
Fan, XH ;
Feldman, PD ;
Finkbeiner, DP ;
Friedman, SD ;
Frieman, JA ;
Fukugita, M ;
Gal, RR ;
Gillespie, B ;
Glazebrook, K ;
Gonzalez, CF ;
Gray, J ;
Grebel, EK ;
Grodnicki, L ;
Gunn, JE ;
Gurbani, VK ;
Hall, PB .
ASTRONOMICAL JOURNAL, 2003, 126 (04) :2081-2086
[3]   Integrated Sachs-Wolfe effect in cross-correlation: The observer's manual [J].
Afshordi, N .
PHYSICAL REVIEW D, 2004, 70 (08)
[4]   Cross-correlation of the cosmic microwave background with the 2MASS galaxy survey: Signatures of dark energy, hot gas, and point sources [J].
Afshordi, N ;
Loh, YS ;
Strauss, MA .
PHYSICAL REVIEW D, 2004, 69 (08) :15
[5]   First-year Wilkinson Microwave Anisotropy Probe (WMAP) observations:: Foreground emission [J].
Bennett, CL ;
Hill, RS ;
Hinshaw, G ;
Nolta, MR ;
Odegard, N ;
Page, L ;
Spergel, DN ;
Weiland, JL ;
Wright, EL ;
Halpern, M ;
Jarosik, N ;
Kogut, A ;
Limon, M ;
Meyer, SS ;
Tucker, GS ;
Wollack, E .
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2003, 148 (01) :97-117
[6]   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
[7]   The Microwave Anisotropy Probe mission [J].
Bennett, CL ;
Bay, M ;
Halpern, M ;
Hinshaw, G ;
Jackson, C ;
Jarosik, N ;
Kogut, A ;
Limon, M ;
Meyer, SS ;
Page, L ;
Spergel, DN ;
Tucker, GS ;
Wilkinson, DT ;
Wollack, E ;
Wright, EL .
ASTROPHYSICAL JOURNAL, 2003, 583 (01) :1-23
[8]   An efficient targeting strategy for multiobject spectrograph surveys: The Sloan Digital Sky Survey "tiling'' algorithm [J].
Blanton, MR ;
Lin, H ;
Lupton, RH ;
Maley, FM ;
Young, N ;
Zehavi, I ;
Loveday, J .
ASTRONOMICAL JOURNAL, 2003, 125 (04) :2276-2286
[9]   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
[10]   The large-scale bias of the hard X-ray background [J].
Boughn, SP ;
Crittenden, RG .
ASTROPHYSICAL JOURNAL, 2004, 612 (02) :647-651