activity
20112026
most citedWarm dark matter chills out: constraints on the halo mass function and the free-streaming length of dark matter with 8 quadruple-image strong gravitational lenses

273 citations · 2.6k across the 58 of their papers we have counts for

collaborators
Showing 2026Show all

6 papers · 1 filter

astro-ph.CO2026

JWST lensed quasar dark matter survey V: Hints of self-interacting dark matter from 29 quadruply imaged quasars

D. Gilman, A. M. Nierenberg, J. Gurian +21

Theories of self-interacting dark matter (SIDM) predict the eventual core collapse of dark matter halos, a process that transforms these structures into extremely efficient gravita…

astro-ph.CO2026

HST imaging, pipeline modeling, and time-delay predictions of 2 triply-imaged and 15 quadruply-imaged lensed quasars

William Sheu, Tommaso Treu, Adriano Agnello +10

The Hubble tension remains a significant challenge in modern cosmology, exhibiting a discrepancy between early-Universe cosmic microwave background measurements and local distance…

astro-ph.GA2026

First measurement of narrow-line flux ratios for a lensed quasar with JWST/NIRSpec IFS

Hadrien Paugnat, Tommaso Treu, Anna M. Nierenberg +3

Strong gravitational lensing is a powerful probe of dark matter (DM) structure on subgalactic scales: in particular, statistics of flux-ratio anomalies (discrepancies between mass…

astro-ph.CO2026

The free-streaming length of dark matter from JWST observations of 28 strong gravitational lenses

D. Gilman, A. M. Nierenberg, T. Treu +24

The formation of gravitationally bound overdensities of dark matter (DM), or \textit{halos}, is a generic prediction of theories with particle DM. We present a measurement of halo…

astro-ph.CO2026

Measurement of the minimum cold dark matter halo mass with strong gravitational lensing

A. M. Nierenberg, D. Gilman, T. Treu +19

We explore the lowest mass limit that can be placed on the halo mass function in CDM using 28 strong gravitational lenses. For this purpose, we study an extreme model in which the…

astro-ph.CO2026

Improved dark matter measurements with flexible modeling of resolved strongly-lensed quasar narrow-line emission

Maria F. Perez Mendoza, Anna M. Nierenberg, Vardha N. Bennert

The relative brightnesses of strongly lensed quasar images, called flux ratios, respond to perturbations from low-mass dark matter halos, enabling tests of dark matter models. The…