Matches in SemOpenAlex for { <https://semopenalex.org/work/W2953025510> ?p ?o ?g. }
- W2953025510 abstract "Observational cosmology has become an important laboratory for testing general relativity, with searches for modified gravity forming a significant portion of the science case for existing and future surveys. In this paper, we illustrate how future measurements of the cosmic microwave background (CMB) temperature and polarization anisotropies can be combined with large galaxy surveys to improve constraints on modified gravity using the technique of Sunyaev-Zel'dovich (SZ) tomography. SZ tomography uses the correlations between the kinetic/polarized SZ contributions to the small-angular-scale CMB and the distribution of structure measured in a galaxy redshift survey to reconstruct the remote dipole and quadrupole fields, e.g., the CMB dipole and quadrupole observed throughout the Universe. We compute the effect of a class of modifications of gravity on the remote dipole and quadrupole fields, illustrating that these observables combine a number of the desirable features of existing probes. We then perform a Fisher forecast of constraints on a two-parameter class of modifications of gravity for next-generation CMB experiments and galaxy surveys. By incorporating information from the reconstructed remote dipole and quadrupole fields, we find that it is possible to improve the constraints on this model by a factor of $ensuremath{sim}2$ beyond what is possible with a galaxy survey alone. We conclude that SZ tomography is a promising method for testing gravity with future cosmological datasets." @default.
- W2953025510 created "2019-06-27" @default.
- W2953025510 creator A5000442421 @default.
- W2953025510 creator A5049426818 @default.
- W2953025510 date "2019-10-15" @default.
- W2953025510 modified "2023-09-29" @default.
- W2953025510 title "Forecasted constraints on modified gravity from Sunyaev-Zel’dovich tomography" @default.
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- W2953025510 doi "https://doi.org/10.1103/physrevd.100.083522" @default.
- W2953025510 hasPublicationYear "2019" @default.
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