{"external_id":{"arxiv":["1503.06214"]},"publication_status":"published","abstract":[{"lang":"eng","text":"Weak gravitational lensing is a powerful cosmological probe, with non--Gaussian features potentially containing the majority of the information. We examine constraints on the parameter triplet (Ωm,w,σ8) from non-Gaussian features of the weak lensing convergence field, including a set of moments (up to 4th order) and Minkowski functionals, using publicly available data from the 154deg2 CFHTLenS survey. We utilize a suite of ray--tracing N-body simulations spanning 91 points in (Ωm,w,σ8) parameter space, replicating the galaxy sky positions, redshifts and shape noise in the CFHTLenS catalogs. We then build an emulator that interpolates the simulated descriptors as a function of (Ωm,w,σ8), and use it to compute the likelihood function and parameter constraints. We employ a principal component analysis to reduce dimensionality and to help stabilize the constraints with respect to the number of bins used to construct each statistic. Using the full set of statistics, we find Σ8≡σ8(Ωm/0.27)^0.55=0.75±0.04 (68% C.L.), in agreement with previous values. We find that constraints on the (Ωm,σ8) doublet from the Minkowski functionals suffer a strong bias. However, high-order moments break the (Ωm,σ8) degeneracy and provide a tight constraint on these parameters with no apparent bias. The main contribution comes from quartic moments of derivatives."}],"intvolume":"        91","article_processing_charge":"No","volume":91,"_id":"17702","extern":"1","title":"Emulating the CFHTLenS weak lensing data: Cosmological constraints from moments and Minkowski functionals","oa":1,"quality_controlled":"1","month":"05","scopus_import":"1","year":"2015","publication":"Physical Review D","publication_identifier":{"issn":["1550-7998","1550-2368"]},"doi":"10.1103/physrevd.91.103511","type":"journal_article","publisher":"American Physical Society","date_updated":"2024-09-25T11:29:05Z","oa_version":"Preprint","article_number":"103511","citation":{"mla":"Petri, Andrea, et al. “Emulating the CFHTLenS Weak Lensing Data: Cosmological Constraints from Moments and Minkowski Functionals.” <i>Physical Review D</i>, vol. 91, no. 10, 103511, American Physical Society, 2015, doi:<a href=\"https://doi.org/10.1103/physrevd.91.103511\">10.1103/physrevd.91.103511</a>.","ista":"Petri A, Liu J, Haiman Z, May M, Hui L, Kratochvil JM. 2015. Emulating the CFHTLenS weak lensing data: Cosmological constraints from moments and Minkowski functionals. Physical Review D. 91(10), 103511.","ieee":"A. Petri, J. Liu, Z. Haiman, M. May, L. Hui, and J. M. Kratochvil, “Emulating the CFHTLenS weak lensing data: Cosmological constraints from moments and Minkowski functionals,” <i>Physical Review D</i>, vol. 91, no. 10. American Physical Society, 2015.","ama":"Petri A, Liu J, Haiman Z, May M, Hui L, Kratochvil JM. Emulating the CFHTLenS weak lensing data: Cosmological constraints from moments and Minkowski functionals. <i>Physical Review D</i>. 2015;91(10). doi:<a href=\"https://doi.org/10.1103/physrevd.91.103511\">10.1103/physrevd.91.103511</a>","chicago":"Petri, Andrea, Jia Liu, Zoltán Haiman, Morgan May, Lam Hui, and Jan M. Kratochvil. “Emulating the CFHTLenS Weak Lensing Data: Cosmological Constraints from Moments and Minkowski Functionals.” <i>Physical Review D</i>. American Physical Society, 2015. <a href=\"https://doi.org/10.1103/physrevd.91.103511\">https://doi.org/10.1103/physrevd.91.103511</a>.","short":"A. Petri, J. Liu, Z. Haiman, M. May, L. Hui, J.M. Kratochvil, Physical Review D 91 (2015).","apa":"Petri, A., Liu, J., Haiman, Z., May, M., Hui, L., &#38; Kratochvil, J. M. (2015). Emulating the CFHTLenS weak lensing data: Cosmological constraints from moments and Minkowski functionals. <i>Physical Review D</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevd.91.103511\">https://doi.org/10.1103/physrevd.91.103511</a>"},"author":[{"first_name":"Andrea","full_name":"Petri, Andrea","last_name":"Petri"},{"full_name":"Liu, Jia","first_name":"Jia","last_name":"Liu"},{"full_name":"Haiman, Zoltán","first_name":"Zoltán","last_name":"Haiman","id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36"},{"full_name":"May, Morgan","first_name":"Morgan","last_name":"May"},{"last_name":"Hui","first_name":"Lam","full_name":"Hui, Lam"},{"last_name":"Kratochvil","full_name":"Kratochvil, Jan M.","first_name":"Jan M."}],"date_created":"2024-09-06T08:48:07Z","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","status":"public","day":"15","main_file_link":[{"open_access":"1","url":" https://doi.org/10.48550/arXiv.1503.06214"}],"article_type":"original","date_published":"2015-05-15T00:00:00Z","issue":"10","language":[{"iso":"eng"}]}