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Observing Baryonic Acoustic Oscillations in tomographic cosmic shear surveys
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We show that it is possible to build effective matter density power spectra in tomographic cosmic shear observations that exhibit the Baryonic Acoustic Oscillations (BAO) features once a nulling transformation has been applied to the data. The precision with which the amplitude and position of these features can be reconstructed is quantified in terms of sky coverage, intrinsic shape noise, median source redshift and number density of sources. BAO detection in Euclid or LSST like wide surveys will be possible with a modest signal-to-noise ratio. It would improve dramatically for slightly deeper surveys.
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Cited by 1 Pith paper
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Cosmic shear nulling as a geometrical cosmological probe: Methodology and sensitivity to cosmological parameters and systematics
A null test of BNT-transformed cosmic shear cross-spectra can constrain Omega_m and w0 geometrically, but requires photometric redshifts known to about 10^-3 and is subdominant to standard 3x2pt analysis.
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