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- W1843598933 abstract "We show that linear redshift distortions in the galaxy distribution can affect the ISW galaxy-temperature signal, when the galaxy selection function is derived from a redshift survey. We find this effect adds power to the ISW signal at all redshifts and is larger at higher redshifts. Omission of this effect leads to an overestimation of the dark energy density $Omega_Lambda$ as well as an underestimation of statistical errors. We find a new expression for the ISW Limber equation which includes redshift distortions, though we find that Limber equations for the ISW calculation are ill-suited for tomographic calculations when the redshift bin width is small. The inclusion of redshift distortions provides a new cosmological handle in the ISW spectrum, which can help constrain dark energy parameters, curvature and alternative cosmologies. Code is available on request and will soon be added as a module to the iCosmo platform (this http URL)" @default.
- W1843598933 created "2016-06-24" @default.
- W1843598933 creator A5039517427 @default.
- W1843598933 date "2009-02-11" @default.
- W1843598933 modified "2023-09-27" @default.
- W1843598933 title "The Effect of Redshift Distortions on the Integrated Sachs-Wolfe Signal" @default.
- W1843598933 hasPublicationYear "2009" @default.
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