English

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

Cosmology and Nongalactic Astrophysics 2023-05-23 v1

Abstract

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 that cover a wide range of scales and redshifts is a necessary stepping-stone. Here, we present public high-resolution weak lensing maps on the light cone, generated using the NN-body simulation suite AbacusSummit in the Born approximation, and accompanying weak lensing mock catalogues, tuned via fits to the Early Data Release small-scale clustering measurements of the Dark Energy Spectroscopic Instrument (DESI). Available in this release are maps of the cosmic shear, deflection angle and convergence fields at source redshifts ranging from z=0.15z = 0.15 to 2.45 with Δz=0.05\Delta z = 0.05 as well as CMB convergence maps (z1090z \approx 1090) for each of the 25 base{\tt base}-resolution simulations (Lbox=2000h1MpcL_{\rm box} = 2000\,h^{-1}{\rm Mpc}, Npart=69123N_{\rm part} = 6912^3) as well as for the two huge{\tt huge} simulations (Lbox=7500h1MpcL_{\rm box} = 7500\,h^{-1}{\rm Mpc}, Npart=86403N_{\rm part} = 8640^3) at the fiducial AbacusSummit cosmology (PlanckPlanck 2018). The pixel resolution of each map is 0.21 arcmin, corresponding to a HEALPiX NsideN_{\rm side} of 16384. The sky coverage of the base{\tt base} simulations is an octant until z0.8z \approx 0.8 (decreasing to about 1800 deg2^2 at z2.4z \approx 2.4), whereas the huge{\tt huge} simulations offer full-sky coverage until z2.2z \approx 2.2. Mock lensing source catalogues are sampled matching the ensemble properties of the Kilo-Degree Survey, Dark Energy Survey, and Hyper-Suprime Cam weak lensing datasets. The produced mock catalogues are validated against theoretical predictions for various clustering and lensing statistics such as galaxy clustering multipoles, galaxy-shear and shear-shear, showing excellent agreement.

Keywords

Cite

@article{arxiv.2305.11935,
  title  = {Synthetic light cone catalogues of modern redshift and weak lensing surveys with AbacusSummit},
  author = {Boryana Hadzhiyska and Sihan Yuan and Chris Blake and Daniel J. Eisenstein and Jessica Nicole Aguilar and Steven Ahlen and David Brooks and Todd Claybaugh and Axel de la Macorra and Peter Doel and Ni Putu Audita Emas and Jaime E. Forero-Romero and Cristhian Garcia-Quintero and Mustapha Ishak and Shahab Joudaki and Eric Jullo and Robert Kehoe and Theodore Kisner and Anthony Kremin and Alex Krolewski and Martin Landriau and Johannes Ulf Lange and Marc Manera and Ramon Miquel and Jundan Nie and Claire Poppett and Anna Porredon and Graziano Rossi and Rossana Ruggeri and Christopher Saulder and Michael Schubnell and Gregory Tarlé and Benjamin Alan Weaver and Enia Xhakaj and Zhimin Zhou},
  journal= {arXiv preprint arXiv:2305.11935},
  year   = {2023}
}

Comments

21 pages, 13 figures, data available at https://app.globus.org/file-manager?origin_id=3dd6566c-eed2-11ed-ba43-09d6a6f08166&path=%2F