Constraining dark energy with the integrated Sachs-Wolfe effect
Jan 11, 202411 pages
Published in:
- Phys.Rev.D 110 (2024) 12, 123525
- Published: Dec 15, 2024
e-Print:
- 2401.06221 [astro-ph.CO]
DOI:
- 10.1103/PhysRevD.110.123525 (publication)
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Abstract: (APS)
We use the integrated Sachs-Wolfe (ISW) effect, by now detectable at within the context of cold dark matter () cosmologies, to place strong constraints on dynamical dark energy theories. Working within an effective field theory (EFT) framework for dark energy we find that including ISW constraints from galaxy–cosmic microwave background (CMB) cross-correlations significantly strengthens existing large-scale structure constraints, yielding bounds consistent with and approximately reducing the viable parameter space by . This is a direct consequence of changes induced in these cross-correlations by otherwise viable dark energy models, which we discuss in detail. We compute constraints by adapting the ISW likelihood from Stölzner et al. [Phys. Rev. D 97, 063506 (2018)] for dynamical dark energy models using galaxy data from 2 MASS, wide-field infrared survey explorer (WISE) SuperCOSMOS, Sloan Digital Sky Survey Data Release 12, the catalog of photometric quasars and NRAO Very Large Array Sky Survey, CMB data from Planck 18, and baryon acoustic oscillation and redshift space distortion large-scale structure measurements from BOSS and 6dF. We show constraints both in terms of EFT-inspired and phenomenological parametrizations. Furthermore we discuss the approximations involved and related aspects of bias modeling in detail and highlight what these constraints imply for the underlying dark energy theories.Note:
- 11 pages + appendices and references, 11 figures
References(146)
Figures(14)
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