Euclid preparation: VI. Verifying the Performance of Cosmic Shear Experiments
Abstract
Our aim is to quantify the impact of systematic effects on the inference of cosmological parameters from cosmic shear. We present an end-to-end approach that introduces sources of bias in a modelled weak lensing survey on a galaxy-by-galaxy level. Residual biases are propagated through a pipeline from galaxy properties (one end) through to cosmic shear power spectra and cosmological parameter estimates (the other end), to quantify how imperfect knowledge of the pipeline changes the maximum likelihood values of dark energy parameters. We quantify the impact of an imperfect correction for charge transfer inefficiency (CTI) and modelling uncertainties of the point spread function (PSF) for Euclid, and find that the biases introduced can be corrected to acceptable levels.
Keywords
Cite
@article{arxiv.1910.10521,
title = {Euclid preparation: VI. Verifying the Performance of Cosmic Shear Experiments},
author = {Euclid Collaboration and P. Paykari and T. D. Kitching and H. Hoekstra and R. Azzollini and V. F. Cardone and M. Cropper and C. A. J. Duncan and A. Kannawadi and L. Miller and H. Aussel and I. F. Conti and N. Auricchio and M. Baldi and S. Bardelli and A. Biviano and D. Bonino and E. Borsato and E. Bozzo and E. Branchini and S. Brau-Nogue and M. Brescia and J. Brinchmann and C. Burigana and S. Camera and V. Capobianco and C. Carbone and J. Carretero and F. J. Castander and M. Castellano and S. Cavuoti and Y. Charles and R. Cledassou and C. Colodro-Conde and G. Congedo and C. Conselice and L. Conversi and Y. Copin and J. Coupon and H. M. Courtois and A. Da Silva and X. Dupac and G. Fabbian and S. Farrens and P. G. Ferreira and P. Fosalba and N. Fourmanoit and M. Frailis and M. Fumana and S. Galeotta and B. Garilli and W. Gillard and B. R. Gillis and C. Giocoli and J. Gracia-Carpio and F. Grupp and F. Hormuth and S. Ilic and H. Israel and K. Jahnke and E. Keihanen and S. Kermiche and M. Kilbinger and C. C. Kirkpatrick and B. Kubik and M. Kunz and H. Kurki-Suonio and F. Lacasa and R. Laureijs and D. Le Mignant and S. Ligori and P. B. Lilje and I. Lloro and T. Maciaszek and E. Maiorano and O. Marggraf and M. Martinelli and N. Martinet and F. Marulli R. Massey and N. Mauri and E. Medinaceli and S. Mei and Y. Mellier and M. Meneghetti and R. B. Metcalf and M. Moresco and L. Moscardini and E. Munari and C. Neissner and R. C. Nichol and S. Niemi and T. Nutma and C. Padilla and S. Paltani and F. Pasian and V. Pettorino and S. Pires and G. Polenta and A. Pourtsidou and F. Raison and A. Renzi and J. Rhodes and E. Romelli and M. Roncarelli and E. Rossetti and R. Saglia and A. G. Sánchez and D. Sapone and R. Scaramella and P. Schneider and T. Schrabback and V. Scottez and A. Secroun and S. Serrano and C. Sirignano and G. Sirri and L. Stanco and J. -L. Starck and F. Sureau and P. Tallada-Crespí and A. Taylor and M. Tenti and I. Tereno and R. Toledo-Moreo and F. Torradeflot and I. Tutusaus and L. Valenziano and M. Vannier and T. Vassallo and J. Zoubian and E. Zucca},
journal= {arXiv preprint arXiv:1910.10521},
year = {2020}
}
Comments
18 pages. Submitted to A&A. Comments Welcome