3 papers
astro-ph.GA2025
Forecasting Dark Matter Subhalo Constraints from Stellar Streams using Implicit Likelihood Inference
Tri Nguyen, Rutong Pei, Zhuofu Li +9
The evidence for dark matter (DM) remains compelling, although attempts to understand its particle nature remain inconclusive. One promising method to study DM is detecting DM subh…
astro-ph.CO2025
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…
astro-ph.CO2025
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…