13 citations · 27 across the 6 of their papers we have counts for
5 papers · 1 filter
The isotropy of Hubble expansion in the early and late Universe
Alan Junzhe Zhou, Scott Dodelson, Daniel Scolnic
We test the isotropy of Hubble expansion by combining several probes for the first time, constructing full-sky maps of expansion rate variation using Type Ia supernovae, fundamenta…
Map-level baryonification: unified treatment of weak lensing two-point and higher-order statistics
Alan Junzhe Zhou, Marco Gatti, Dhayaa Anbajagane +3
Precision cosmology benefits from extracting maximal information from cosmic structures, motivating the use of higher-order statistics (HOS) at small spatial scales. However, predi…
A Hamiltonian, post-Born, three-dimensional, on-the-fly ray tracing algorithm for gravitational lensing
Alan Junzhe Zhou, Yin Li, Scott Dodelson +4
The analyses of the next generation cosmological surveys demand an accurate, efficient, and differentiable method for simulating the universe and its observables across cosmologica…
Accurate field-level weak lensing inference for precision cosmology
Alan Junzhe Zhou, Xiangchong Li, Scott Dodelson +1
We present , a catalog-to-cosmology pipeline for general flat-sky field-level inference, which provides access to cosmological information beyond the two-point stati…
Field-level multiprobe analysis of the CMB, integrated Sachs-Wolfe effect, and the galaxy density maps
Alan Junzhe Zhou, Scott Dodelson
Extracting information from cosmic surveys is often done in a two-step process, construction of maps and then summary statistics such as two-point functions. We use simulations to…