activity
19922025
most citedSterile neutrinos, dark matter, and the pulsar velocities in models with a Higgs singlet

365 citations · 1.7k across the 36 of their papers we have counts for

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18 papers · 1 filter

astro-ph.CO2025

JWST Lensed Quasar Dark Matter Survey III: Dark Matter Sensitive Flux Ratios and Warm Dark Matter Constraint from the Full Sample

R. E. Keeley, A. M. Nierenberg, D. Gilman +24

We present the full sample of measurements of the warm dust emission of 31 strongly-lensed, multiply imaged quasars, observed with JWST MIRI multiband imaging, which we use to cons…

astro-ph.CO2025

JWST lensed quasar dark matter survey IV: Stringent warm dark matter constraints from the joint reconstruction of extended lensed arcs and quasar flux ratios

D. Gilman, A. M. Nierenberg, T. Treu +23

We present a measurement of the free-streaming length of dark matter (DM) and subhalo abundance around 28 quadruple image strong lenses using observations from JWST MIRI presented…

astro-ph.CO20242 cited

JWST Lensed quasar dark matter survey II: Strongest gravitational lensing limit on the dark matter free streaming length to date

Ryan E. Keeley, Anna M. Nierenberg, Daniel Gilman +20

This is the second in a series of papers in which we use JWST MIRI multiband imaging to measure the warm dust emission in a sample of 31 multiply imaged quasars, to be used as a pr…

astro-ph.CO2023

JWST lensed quasar dark matter survey I: Description and First Results

A. M. Nierenberg, R. E. Keeley, D. Sluse +18

The flux ratios of gravitationally lensed quasars provide a powerful probe of the nature of dark matter. Importantly, these ratios are sensitive to small-scale structure, irrespect…

astro-ph.CO20237 cited

Objects and primordial black holes

Marcos M. Flores, Alexander Kusenko, Andrea M. Ghez +1

We suggest that " objects" recently discovered in the Galactic Center may be clouds of gas bound by the gravitational field of stellar-mass black holes produced in the interacti…

astro-ph.CO2023

Structure Formation after Reheating: Supermassive Primordial Black Holes and Fermi Ball Dark Matter

Marcos M. Flores, Yifan Lu, Alexander Kusenko

In the presence of (relatively) long-range forces, structures can form even during the radiation dominated era, leading to compact objects, such as Fermi balls or primordial black…