3 papers
astro-ph.CO2026
Euclid preparation. Galaxy power spectrum and bispectrum modelling
Euclid Collaboration, K. Pardede, A. Eggemeier +306
Higher-order correlation functions of the large-scale galaxy distribution offer access to information beyond that contained in standard 2-point statistics such as the power spectru…
astro-ph.CO2025
The Bispectrum of Intrinsic Alignments: II. Precision Comparison Against Dark Matter Simulations
Thomas Bakx, Toshiki Kurita, Alexander Eggemeier +2
We measure three-dimensional bispectra of halo intrinsic alignments (IA) and dark matter overdensities in real space from N-body simulations for halos of mass $10^{12}-10^{12.5} M_…
astro-ph.CO2025
The Bispectrum of Intrinsic Alignments: Theory Modelling and Forecasts for Stage IV Galaxy Surveys
Thomas Bakx, Alexander Eggemeier, Toshiki Kurita +2
We present a complete treatment of the bispectrum of intrinsic alignments, both in three spatial dimensions and in projection in the flat-sky approximation. Since intrinsic alignme…