%0 Generic %1 giblin2020kids1000 %A Giblin, Benjamin %A Heymans, Catherine %A Asgari, Marika %A Hildebrandt, Hendrik %A Hoekstra, Henk %A Joachimi, Benjamin %A Kannawadi, Arun %A Kuijken, Konrad %A Lin, Chieh-An %A Miller, Lance %A Tröster, Tilman %A Busch, Jan Luca van den %A Wright, Angus H. %A Bilicki, Maciej %A Blake, Chris %A de Jong, Jelte %A Dvornik, Andrej %A Erben, Thomas %A Getman, Fedor %A Napolitano, Nicola R. %A Schneider, Peter %A Shan, HuanYuan %D 2020 %K library %T KiDS-1000 catalogue: weak gravitational lensing shear measurements %U http://arxiv.org/abs/2007.01845 %X We present weak lensing shear catalogues from the fourth data release of the Kilo-Degree Survey, KiDS-1000, spanning 1006 square degrees of deep and high-resolution imaging. Our `gold-sample' of galaxies, with well calibrated photometric redshift distributions, consists of 21 million galaxies with an effective number density of $6.2$ galaxies per square arcminute. We quantify the accuracy of the spatial, temporal and flux-dependent point-spread function (PSF) model, verifying that the model meets our requirements to induce less than a $0.1\sigma$ change in the inferred cosmic shear constraints on the clustering cosmological parameter $S_8 = \sigma_8Ømega_m/0.3$. Through a series of two-point null-tests we validate the shear estimates, finding no evidence for significant non-lensing B-mode distortions in the data. PSF residuals are detected in the highest-redshift bins, originating from object selection and/or weight bias. The amplitude is however shown to be sufficiently low and within our stringent requirements. With a shear-ratio null-test we verify the expected redshift scaling of the galaxy-galaxy lensing signal around luminous red galaxies. We conclude that the joint KiDS-1000 shear and photometric redshift calibration is sufficiently robust for combined-probe gravitational lensing and spectroscopic clustering analyses.

@misc{giblin2020kids1000, abstract = {We present weak lensing shear catalogues from the fourth data release of the Kilo-Degree Survey, KiDS-1000, spanning 1006 square degrees of deep and high-resolution imaging. Our `gold-sample' of galaxies, with well calibrated photometric redshift distributions, consists of 21 million galaxies with an effective number density of $\sim 6.2$ galaxies per square arcminute. We quantify the accuracy of the spatial, temporal and flux-dependent point-spread function (PSF) model, verifying that the model meets our requirements to induce less than a $0.1\sigma$ change in the inferred cosmic shear constraints on the clustering cosmological parameter $S_8 = \sigma_8\sqrt{\Omega_{\rm m}/0.3}$. Through a series of two-point null-tests we validate the shear estimates, finding no evidence for significant non-lensing B-mode distortions in the data. PSF residuals are detected in the highest-redshift bins, originating from object selection and/or weight bias. The amplitude is however shown to be sufficiently low and within our stringent requirements. With a shear-ratio null-test we verify the expected redshift scaling of the galaxy-galaxy lensing signal around luminous red galaxies. We conclude that the joint KiDS-1000 shear and photometric redshift calibration is sufficiently robust for combined-probe gravitational lensing and spectroscopic clustering analyses.}, added-at = {2020-07-06T07:41:50.000+0200}, author = {Giblin, Benjamin and Heymans, Catherine and Asgari, Marika and Hildebrandt, Hendrik and Hoekstra, Henk and Joachimi, Benjamin and Kannawadi, Arun and Kuijken, Konrad and Lin, Chieh-An and Miller, Lance and Tröster, Tilman and Busch, Jan Luca van den and Wright, Angus H. and Bilicki, Maciej and Blake, Chris and de Jong, Jelte and Dvornik, Andrej and Erben, Thomas and Getman, Fedor and Napolitano, Nicola R. and Schneider, Peter and Shan, HuanYuan}, biburl = {https://www.bibsonomy.org/bibtex/2736befc021272bd71921e820fe9e33d6/gpkulkarni}, description = {KiDS-1000 catalogue: weak gravitational lensing shear measurements}, interhash = {994abbd11824b401bd48bca9a3228ca7}, intrahash = {736befc021272bd71921e820fe9e33d6}, keywords = {library}, note = {cite arxiv:2007.01845Comment: 24 pages, 11 figures, submitted to A&A. This paper is part of the KiDS-1000 series of papers, accompanying Joachimi et al. appearing on the arxiv today}, timestamp = {2020-07-06T07:41:50.000+0200}, title = {KiDS-1000 catalogue: weak gravitational lensing shear measurements}, url = {http://arxiv.org/abs/2007.01845}, year = 2020 }