Search Results - "weak gravitational lensing"
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H-ATLAS/GAMA: magnification bias tomography. Astrophysical constraints above ∼1 arcmin
Published 2017Subjects: Get full text
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HerMES: Detection of cosmic magnification of submillimetre galaxies using angular cross-correlation
Published 2011“…Cosmic magnification is due to the weak gravitational lensing of sources in the distant Universe by foreground large-scale structure leading to coherent changes in the observed number density of the background sources. …”
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Herschel-ATLAS/GAMA: SDSS cross-correlation induced by weak lensing
Published 2014“…Extensive, realistic simulations of clustered sub-mm galaxies amplified by foreground structures confirm that the cross-correlation can be explained by weak gravitational lensing (μ < 2). The simulations also show that the measured amplitude and range of angular scales of the signal are larger than can be accounted for by galaxy–galaxy weak lensing. …”
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The Dark Energy Survey: more than dark energy – an overview
Published 2016“…The main goals of DES are to characterize dark energy and dark matter, and to test alternative models of gravity; these goals will be pursued by studying large-scale structure, cluster counts, weak gravitational lensing and Type Ia supernovae. However, DES also provides a rich data set which allows us to study many other aspects of astrophysics. …”
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Planck 2015 results. XIV. Dark energy and modified gravity
Published 2016“…We further show the impact of measurements of the cosmological perturbations, such as redshift-space distortions and weak gravitational lensing. These additional probes are important tools for testing MG models and for breaking degeneracies that are still present in the combination of Planck and background data sets. …”
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Planck 2015 results. XIII. Cosmological parameters
Published 2016“…However, as in the 2013 analysis, the amplitude of the fluctuation spectrum is found to be higher than inferred from some analyses of rich cluster counts and weak gravitational lensing. We show that these tensions cannot easily be resolved with simple modifications of the base ΛCDM cosmology. …”
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