Dark Energy Survey Y3 results: blending shear and redshift biases in image simulations

ABSTRACT As the statistical power of galaxy weak lensing reaches per cent level precision, large, realistic, and robust simulations are required to calibrate observational systematics, especially given the increased importance of object blending as survey depths increase. To capture the coupled effe...

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Published in:	Monthly notices of the Royal Astronomical Society 2022-01, Vol.509 (3), p.3371-3394
Main Authors:	MacCrann, N, Becker, M R, McCullough, J, Amon, A, Gruen, D, Jarvis, M, Choi, A, Troxel, M A, Sheldon, E, Yanny, B, Herner, K, Dodelson, S, Zuntz, J, Eckert, K, Rollins, R P, Varga, T N, Bernstein, G M, Gruendl, R A, Harrison, I, Hartley, W G, Sevilla-Noarbe, I, Pieres, A, Bridle, S L, Myles, J, Alarcon, A, Everett, S, Sánchez, C, Huff, E M, Tarsitano, F, Gatti, M, Secco, L F, Abbott, T M C, Aguena, M, Allam, S, Annis, J, Bacon, D, Bertin, E, Brooks, D, Burke, D L, Carnero Rosell, A, Carrasco Kind, M, Carretero, J, Costanzi, M, Crocce, M, Pereira, M E S, De Vicente, J, Desai, S, Diehl, H T, Dietrich, J P, Doel, P, Eifler, T F, Ferrero, I, Ferté, A, Flaugher, B, Fosalba, P, Frieman, J, García-Bellido, J, Gaztanaga, E, Gerdes, D W, Giannantonio, T, Gschwend, J, Gutierrez, G, Hinton, S R, Hollowood, D L, Honscheid, K, James, D J, Lahav, O, Lima, M, Maia, M A G, March, M, Marshall, J L, Martini, P, Melchior, P, Menanteau, F, Miquel, R, Mohr, J J, Morgan, R, Muir, J, Ogando, R L C, Palmese, A, Paz-Chinchón, F, Plazas, A A, Rodriguez-Monroy, M, Roodman, A, Samuroff, S, Sanchez, E, Scarpine, V, Serrano, S, Smith, M, Soares-Santos, M, Suchyta, E, Swanson, M E C, Tarle, G, Thomas, D, To, C, Wilkinson, R D
Format:	Article
Language:	English
Subjects:	Astrophysics large-scale structure of Universe Physics weak gravitational lensing
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