A general framework for removing point-spread function additive systematics in cosmological weak lensing analysis

• Published in: Monthly notices of the Royal Astronomical Society Vol. 525; no. 2; pp. 2441 - 2471
• Main Authors: Zhang, Tianqing, Li, Xiangchong, Dalal, Roohi, Mandelbaum, Rachel, Strauss, Michael A, Kannawadi, Arun, Miyatake, Hironao, Nicola, Andrina, Malagón, Andrés A Plazas, Shirasaki, Masato, Sugiyama, Sunao, Takada, Masahiro, More, Surhud
• Format: Journal Article
• Language: English
• Published: United States Oxford University Press 01.10.2023
• Subjects: ASTRONOMY AND ASTROPHYSICS; gravitational lensing: weak; methods: data analysis; PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; gravitational lensing: weak; methods: data analysis

ABSTRACT Cosmological weak lensing measurements rely on a precise measurement of the shear two-point correlation function (2PCF) along with a deep understanding of systematics that affect it. In this work, we demonstrate a general framework for detecting and modelling the impact of PSF systematics o...