3 papers
astro-ph.CO2026
Assembly bias and the redshift evolution of intrinsic alignments for LRGs
A. Herle, N. E. Chisari, H. Hoekstra +1
The intrinsic alignment (IA) of galaxies is one of the main contaminants to the weak lensing shear signal. Efforts to model it often assume that the alignment strength depends only…
astro-ph.CO2026
Intrinsic alignments in the FLAMINGO simulations with two-point statistics
A. Herle, N. E. Chisari, H. Hoekstra +3
Intrinsic alignments are a major astrophysical contaminant for next generation large-sky surveys like Euclid and LSST. Large hydrodynamic simulations are crucial for informing the…
astro-ph.CO2025
Unbiased estimates of the shapes of haloes using the positions of satellite galaxies
A. Herle, N. E. Chisari, H. Hoekstra +4
The shapes of dark matter haloes are sensitive to both cosmology and baryon physics, but are difficult to measure observationally. A promising way to constrain them is to use the p…