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• W3103798304 abstract "We provide an exhaustive analysis of the Integrated Sach-Wolfe effect (ISW) in the context of coupled Dark Energy cosmologies where a component of massive neutrinos is also present. We focus on the effects of both the coupling between Dark Matter and Dark Energy and of the neutrino mass on the cross-correlation between galaxy/quasar distributions and ISW effect. We provide a simple expression to appropriately rescale the galaxy bias when comparing different cosmologies. Theoretical predictions of the cross-correlation function are then compared with observational data. We find that, while it is not possible to distinguish among the models at low redshifts, discrepancies between coupled models and $Lambda$CDM increase with $z$. In spite of this, current data alone seems not able to distinguish between coupled models and $Lambda$CDM. However, we show that upcoming galaxy surveys will permit tomographic analysis which allow to better discriminate among the models. We discuss the effects on cross-correlation measurements of ignoring galaxy bias evolution, b(z), and magnification bias correction and provide fitting formulae for b(z) for the cosmologies considered. We compare three different tomographic schemes and investigate how the expected signal to noise ratio, snr, of the ISW-LSS cross-correlation changes when increasing the number of tomographic bins. The dependence of snr on the area of the survey and the survey shot noise is also discussed." @default.
• W3103798304 created "2020-11-23" @default.
• W3103798304 creator A5000584671 @default.
• W3103798304 creator A5083749517 @default.
• W3103798304 date "2011-12-07" @default.
• W3103798304 modified "2023-09-27" @default.
• W3103798304 title "ISW-LSS CROSS-CORRELATION IN COUPLED DARK ENERGY MODELS WITH MASSIVE NEUTRINOS" @default.
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• W3103798304 doi "https://doi.org/10.1088/0004-637x/744/1/3" @default.
• W3103798304 hasPublicationYear "2011" @default.
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