[PDF] Top 20 Dark energy survey year 1 results: weak lensing shape catalogues

... This work also makes use of the most sophisticated image simulations currently used for lensing noise and model bias calibration, which account for a wide range of systematic effects tha[r] ... See full document

... redshift bin, shown by the differential angular correlations, with and without weights applied, relative to the uncertainty. One can see that the weights make the biggest difference for the 0.7 < z < 0.8 bin, which ... See full document

... the shape catalogs and priors were ...of results from the two shape catalogs with axes and values suppressed was performed to confirm that they produced consistent results after their ... See full document

... The spatial separation between the redMaGiC galaxies used in this work for calibration and those in the main DES cosmology papers theoretically could mean the calibrations are not applica- ble to the DES Y1 papers. ... See full document

... of dark energy with DES rely on an unprecedented survey data set and a comprehensive under- standing of the survey ...of survey coverage, galaxy detection ef ficiency, and the accuracy ... See full document

... As demonstrated by [45] , when testing a large number of maps one expects there to be some amount of covariance between the maps and the true galaxy density field due to chance. Consequently, it is possible to ... See full document

... Finally, we use the likelihood framework described in Krause et al. ( 2017 ) to analyse the clustering of redMaGiC galaxies (Rozo et al. 2016 ; Elvin-Poole et al. 2017 ), the shear profile around red- MaGiC galaxies ... See full document

... CMB lensing maps in position ...CMB lensing map in order to cut off the high level of noise that would otherwise leak from the high multipoles down to larger scales when transforming from harmonic to ... See full document

... galaxy weak lensing shear field, and the cosmic microwave background (CMB) weak lensing convergence ...first year observations of the Dark Energy Survey (DES) and ... See full document

... Both shape measurement methods considered here fit parametric models across square ‘postage-stamps’ of pixels centred on the galaxy being ...the catalogues, as described in Jarvis et ...the results ... See full document

... U.S. Department of Energy Grant No. DE-SC0007901. The Reichardt and Bianchini acknowledge support from the Australian Research Council ’s Future Fellowships scheme (Grant No. FT150100074). P. F. is funded by ... See full document

... 2017 ; Mandelbaum et al. 2018 ), and galaxies associated with the targeted clusters also enter the catalogue if they satisfy those criteria. Ideally cluster galaxies would be excluded (e.g. as in Schrabback et al. 2018 ) ... See full document

... C ur, see Section 2.1). For the largest angular scales (1250–8000 kpc), the reconstruction is so noisy that it fails to provide corrections to the photo-z posteriors, as the MCMC chains fail to converge. The noisier ... See full document

... unconvolved ICL pro file is modeled with the three Sérsic components as described in Section 5.1 , and we convolve it to the extended PSF model derived in Section 4 . We find that the PSF convolution only signi ficantly ... See full document

... The Sloan Digital Sky Survey (SDSS) DR-8 redMaPPer cluster sample (Rykoff et al. 2014 ) has recently been combined with ensemble-average weak-lensing masses (Simet et al. 2017 ) to produce ... See full document

... two shape catalogues derived using NGMIX and IM 3 SHAPE , though the latter shows lower source number densities, because it was applied only to r-band ... See full document

... the Dark Energy Survey (DES) Year 1 redMaGiC galaxy sample to address this ...our lensing measurement ranges between ...mock catalogues and estimate the impact of ... See full document

... mock catalogues used to vali- date the analysis and results (Avila et ...joint results applied to the Y1 data are described in the BAO main paper (Abbott et ... See full document

... of weak lensing mass mapping and cosmic shear (Heavens 2003 ; Castro, Heavens & Kitching 2005 ; Heavens, Kitching & Taylor 2006 ; Kitching et ...curved weak lensing maps con- structed ... See full document

... We perform a joint analysis of intrinsic alignments and cosmology using tomographic weak lensing, galaxy clustering, and galaxy–galaxy lensing measurements from Year 1 Y1 of the Dark Ene[r] ... See full document