Dark energy survey year 3 results: weak lensing shape catalogue

Gatti, M.; Sheldon, E.; Amon, A.; Becker, M.; Troxel, M.; Choi, A.; Doux, C.; MacCrann, N.; Navarro-Alsina, A.; Harrison, I.; Gruen, D.; Bernstein, G.; Jarvis, M.; Secco, L. F.; Ferté, A.; Shin, T.; McCullough, J.; Rollins, R. P.; Chen, R.; Chang, C.; Pandey, S.; Tutusaus, I.; Prat, J.; Elvin-Poole, J.; Sanchez, C.; Plazas, A. A.; Roodman, A.; Zuntz, J.; Abbott, T. M. C.; Aguena, M.; Allam, S.; Annis, J.; Avila, S.; Bacon, D.; Bertin, E.; Bhargava, S.; Brooks, D.; Burke, D. L.; Carnero Rosell, A.; Carrasco Kind, M.; Carretero, J.; Castander, F. J.; Conselice, C.; Costanzi, M.; Crocce, M.; da Costa, L. N.; Davis, T. M.; De Vicente, J.; Desai, S.; Diehl, H. T.; Dietrich, J. P.; Doel, P.; Drlica-Wagner, A.; Eckert, K.; Everett, S.; Ferrero, I.; Frieman, J.; García-Bellido, J.; Gerdes, D. W.; Giannantonio, T.; Gruendl, R. A.; Gschwend, J.; Gutierrez, G.; Hartley, W. G.; Hinton, S. R.; Hollowood, D. L.; Honscheid, K.; Hoyle, B.; Huff, E. M.; Huterer, D.; Jain, B.; James, D. J.; Jeltema, T.; Krause, E.; Kron, R.; Kuropatkin, N.; Lima, M.; Maia, M. A. G.; Marshall, J. L.; Miquel, R.; Morgan, R.; Myles, J.; Palmese, A.; Paz-Chinchón, F.; Rykoff, E. S.; Samuroff, S.; Sanchez, E.; Scarpine, V.; Schubnell, M.; Serrano, S.; Sevilla-Noarbe, I.; Smith, M.; Soares-Santos, M.; Suchyta, E.; Swanson, M. E. C.; Tarle, G.; Thomas, D.; To, C.; Tucker, D. L.; Varga, T. N. et al.
Bibliographical reference

Monthly Notices of the Royal Astronomical Society

Advertised on:
7
2021
Number of authors
104
IAC number of authors
1
Citations
113
Refereed citations
88
Description
We present and characterize the galaxy shape catalogue from the first 3 yr of Dark Energy Survey (DES) observations, over an effective area of 4143 deg2 of the southern sky. We describe our data analysis process and our self-calibrating shear measurement pipeline metacalibration, which builds and improves upon the pipeline used in the DES Year 1 analysis in several aspects. The DES Year 3 weak-lensing shape catalogue consists of 100 204 026 galaxies, measured in the riz bands, resulting in a weighted source number density of neff = 5.59 gal arcmin-2 and corresponding shape noise σe = 0.261. We perform a battery of internal null tests on the catalogue, including tests on systematics related to the point spread function (PSF) modelling, spurious catalogue B-mode signals, catalogue contamination, and galaxy properties.
Related projects
Galaxy proto-cluster
Molecular Gas and Dust in Galaxies Across Cosmic Time
Two of the most fundamental questions in astrophysics are the conversion of molecular gas into stars and how this physical process is a function of environments on all scales, ranging from planetary systems, stellar clusters, galaxies to galaxy clusters. The main goal of this internal project is to get insight into the formation and evolution of
Helmut
Dannerbauer