High redshift detection of the integrated Sachs-Wolfe effect

T. Giannantonio; Robert Crittenden; Bob Nichol; R. Scranton; G. Richards; A. Myers; R. Brunner; A. Gray; A. Connolly; D. Schneider

doi:10.1103/PhysRevD.74.063520

High redshift detection of the integrated Sachs-Wolfe effect

T. Giannantonio, Robert Crittenden, Bob Nichol, R. Scranton, G. Richards, A. Myers, R. Brunner, A. Gray, A. Connolly, D. Schneider

Institute of Cosmology & Gravitation

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Abstract

We present evidence of a large angle correlation between the cosmic microwave background measured by WMAP and a catalog of photometrically detected quasars from the SDSS. The observed cross correlation is 0.30±0.14 μK at zero lag, with a shape consistent with that expected for correlations arising from the integrated Sachs-Wolfe effect. The photometric redshifts of the quasars are centered at z∼1.5, making this the deepest survey in which such a correlation has been observed. Assuming this correlation is due to the ISW effect, this constitutes the earliest evidence yet for dark energy and it can be used to constrain exotic dark energy models

Original language	English
Pages (from-to)	063520
Number of pages	1
Journal	Physical Review D
Volume	74
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevD.74.063520
Publication status	Published - 26 Sept 2006

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title = "High redshift detection of the integrated Sachs-Wolfe effect",

abstract = "We present evidence of a large angle correlation between the cosmic microwave background measured by WMAP and a catalog of photometrically detected quasars from the SDSS. The observed cross correlation is 0.30±0.14 μK at zero lag, with a shape consistent with that expected for correlations arising from the integrated Sachs-Wolfe effect. The photometric redshifts of the quasars are centered at z∼1.5, making this the deepest survey in which such a correlation has been observed. Assuming this correlation is due to the ISW effect, this constitutes the earliest evidence yet for dark energy and it can be used to constrain exotic dark energy models",

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T1 - High redshift detection of the integrated Sachs-Wolfe effect

AU - Giannantonio, T.

AU - Crittenden, Robert

AU - Nichol, Bob

AU - Scranton, R.

AU - Richards, G.

AU - Myers, A.

AU - Brunner, R.

AU - Gray, A.

AU - Connolly, A.

AU - Schneider, D.

PY - 2006/9/26

Y1 - 2006/9/26

N2 - We present evidence of a large angle correlation between the cosmic microwave background measured by WMAP and a catalog of photometrically detected quasars from the SDSS. The observed cross correlation is 0.30±0.14 μK at zero lag, with a shape consistent with that expected for correlations arising from the integrated Sachs-Wolfe effect. The photometric redshifts of the quasars are centered at z∼1.5, making this the deepest survey in which such a correlation has been observed. Assuming this correlation is due to the ISW effect, this constitutes the earliest evidence yet for dark energy and it can be used to constrain exotic dark energy models

AB - We present evidence of a large angle correlation between the cosmic microwave background measured by WMAP and a catalog of photometrically detected quasars from the SDSS. The observed cross correlation is 0.30±0.14 μK at zero lag, with a shape consistent with that expected for correlations arising from the integrated Sachs-Wolfe effect. The photometric redshifts of the quasars are centered at z∼1.5, making this the deepest survey in which such a correlation has been observed. Assuming this correlation is due to the ISW effect, this constitutes the earliest evidence yet for dark energy and it can be used to constrain exotic dark energy models

U2 - 10.1103/PhysRevD.74.063520

DO - 10.1103/PhysRevD.74.063520

M3 - Article

SN - 1550-7998

VL - 74

SP - 063520

JO - Physical Review D

JF - Physical Review D

IS - 6

ER -

High redshift detection of the integrated Sachs-Wolfe effect

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