TY - JOUR
T1 - High redshift detection of the integrated Sachs-Wolfe effect
AU - Giannantonio, Tommaso
AU - Crittenden, Robert G.
AU - Nichol, Robert C.
AU - Scranton, Ryan
AU - Richards, Gordon T.
AU - Myers, Adam D.
AU - Brunner, Robert J.
AU - Gray, Alexander G.
AU - Connolly, Andrew J.
AU - Schneider, Donald P.
PY - 2006
Y1 - 2006
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±0.14μK 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±0.14μK 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.
UR - http://www.scopus.com/inward/record.url?scp=33748924677&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33748924677&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.74.063520
DO - 10.1103/PhysRevD.74.063520
M3 - Article
AN - SCOPUS:33748924677
SN - 1550-7998
VL - 74
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 6
M1 - 063520
ER -