activity
20092026
most citedThe Low-Luminosity End of the Radius-Luminosity Relationship for Active Galactic Nuclei

846 citations · 6.3k across the 84 of their papers we have counts for

collaborators

87 papers

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.GA2026

Precision near-IR spectroscopy for understanding AGN physics and shed light on the H0 tension -- SHARP Science Book

M. Signorini, V. N. Bennert, E. Dalla Bontà +3

The persistent tension between early- and late-Universe measurements of the Hubble constant (H0) remains on of the most significant challenges in modern cosmology. The Spectroastro…

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.GA2026

Can BLR line profile shape improve single-epoch black hole mass estimates?

Lizvette Villafaña, Tommaso Treu, Shu Wang +7

The virial coefficient (), which is meant to encapsulate broad-line region (BLR) geometry and kinematics, remains one of the largest sources of systematic uncertainty in black h…

astro-ph.HE2026

A large population of over-massive black hole quasars at z=0.3-0.8 revealed by eROSITA

Johannes Buchner, Isabelle Gauger, Qiaoya Wu +14

In most galaxies, the central black hole accounts for no more than a percent of the total mass in stars. Recently, however, extremely over-massive black holes with ratios of 10% ha…

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…