Synthetic light-cone catalogues of modern redshift and weak lensing surveys with abacussummit

Journal Article · Fri Sep 01 00:00:00 EDT 2023 · Monthly Notices of the Royal Astronomical Society

DOI:https://doi.org/10.1093/mnras/stad2563· OSTI ID:1998811

Hadzhiyska, Boryana ; Yuan, S. ; Blake, C.; Eisenstein, D. J. ; Aguilar, J.; Ahlen, S.; Brooks, D.; Claybaugh, T.; de la Macorra, A.; Doel, P.; Emas, N.; Forero-Romero, J. E.; Garcia-Quintero, C.; Ishak, M.; Joudaki, S.; Jullo, E.; Kehoe, R.; Kisner, T.; Kremin, A.; Krolewski, A. ; Landriau, M.; Lange, J. U.; Manera, M.; Miquel, R.; Nie, Jundan; Poppett, C.; Porredon, A.; Rossi, G.; Ruggeri, R.; Saulder, C.; Schubnell, M.; Tarlé, G.; Weaver, B. A.; Xhakaj, E.; Zhou, Zhimin

The joint analysis of different cosmological probes, such as galaxy clustering and weak lensing, can potentially yield invaluable insights into the nature of the primordial Universe, dark energy, and dark matter. However, the development of high-fidelity theoretical models is a necessary stepping stone. Here, we present public high-resolution weak lensing maps on the light-cone, generated using the N-body simulation suite ABACUSSUMMIT, and accompanying weak lensing mock catalogues, tuned to the Early Data Release small-scale clustering measurements of the Dark Energy Spectroscopic Instrument. Available in this release are maps of the cosmic shear, deflection angle, and convergence fields at source redshifts ranging from z = 0.15 to 2.45 as well as cosmic microwave background convergence maps for each of the 25 base-resolution simulations ($$L_{\rm box} = 2000\, h^{-1}\, {\rm Mpc}$$ and N_part = 6912³) as well as for the two huge simulations ($$L_{\rm box} = 7500\, h^{-1}\, {\rm Mpc}$$ and N_part = 8640³) at the fiducial ABACUSSUMMIT cosmology. The pixel resolution of each map is 0.21 arcmin, corresponding to a HEALPIX N_side of 16 384. The sky coverage of the base simulations is an octant until z ≈ 0.8 (decreasing to about 1800 deg² at z ≈ 2.4), whereas the huge simulations offer full-sky coverage until z ≈ 2.2. Mock lensing source catalogues are sampled matching the ensemble properties of the Kilo-Degree Survey, Dark Energy Survey, and Hyper Suprime-Cam data sets. Furthermore, the mock catalogues are validated against theoretical predictions for various clustering and lensing statistics, such as correlation multipoles, galaxy–shear, and shear–shear, showing excellent agreement. All products can be downloaded via a Globus endpoint (see Data Availability section).

• Research Organization: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); National Science Foundation (NSF)
• Grant/Contract Number: AC02-05CH11231; AST-0950945
• OSTI ID: 1998811
• Alternate ID(s): OSTI ID: 2281223
• Journal Information: Monthly Notices of the Royal Astronomical Society, Journal Name: Monthly Notices of the Royal Astronomical Society Vol. 525 Journal Issue: 3; ISSN 0035-8711
• Publisher: Oxford University Press
• Country of Publication: United Kingdom
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
gravitational lensing: weak
methods: numerical
galaxies: haloes
cosmic background radiation
large-scale structure of Universe