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• W2885957572 endingPage "027" @default.
• W2885957572 startingPage "027" @default.
• W2885957572 abstract "The process of density field reconstruction enhances the statistical power of distance scale measurements using baryon acoustic oscillations (BAO). During this process a fiducial cosmology is assumed in order to convert sky coordinates and redshifts into distances; fiducial bias and redshift-space-distortion parameters are also assumed in this procedure. We analytically assess the impact of incorrect cosmology and bias assumptions on the post-reconstruction power spectra using low-order Lagrangian perturbation theory, deriving general expressions for the incorrectly reconstructed spectra. We find that the BAO peak location appears to shift only by a negligible amount due to wrong assumptions made during reconstruction. However, the shape of the BAO peak and the quadrupole amplitude can be affected by such errors (at the percent- and five-percent-level respectively), which potentially could cause small biases in parameter inference for future surveys; we outline solutions to such complications." @default.
• W2885957572 created "2018-08-22" @default.
• W2885957572 creator A5034234794 @default.
• W2885957572 creator A5065077728 @default.
• W2885957572 date "2019-02-14" @default.
• W2885957572 modified "2023-09-25" @default.
• W2885957572 title "The impact of wrong assumptions in BAO reconstruction" @default.
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• W2885957572 doi "https://doi.org/10.1088/1475-7516/2019/02/027" @default.
• W2885957572 hasPublicationYear "2019" @default.
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