Warm dark matter chills out: constraints on the halo mass function and the free-streaming length of dark matter with eight quadruple-image strong gravitational lenses

D Gilman, S Birrer, A Nierenberg, T Treu… - Monthly Notices of …, 2020 - academic.oup.com
The free-streaming length of dark matter depends on fundamental dark matter physics, and
determines the abundance and concentration of dark matter haloes on sub-galactic scales …

A lensed radio jet at milli-arcsecond resolution–II. Constraints on fuzzy dark matter from an extended gravitational arc

DM Powell, S Vegetti, JP McKean… - Monthly Notices of …, 2023 - academic.oup.com
Using a single gravitational lens system observed at≲ 5 mas resolution with very long
baseline interferometry, we place a lower bound on the mass of the fuzzy dark matter (FDM) …

Joint constraints on thermal relic dark matter from strong gravitational lensing, the Ly α forest, and Milky Way satellites

W Enzi, R Murgia, O Newton, S Vegetti… - Monthly Notices of …, 2021 - academic.oup.com
We derive joint constraints on the warm dark matter (WDM) half-mode scale by combining
the analyses of a selection of astrophysical probes: strong gravitational lensing with …

Strong lensing signatures of self-interacting dark matter in low-mass haloes

D Gilman, J Bovy, T Treu, A Nierenberg… - Monthly Notices of …, 2021 - academic.oup.com
Core formation and runaway core collapse in models with self-interacting dark matter (SIDM)
significantly alter the central density profiles of collapsed haloes. Using a forward modelling …

Probing dark matter structure down to 107 solar masses: flux ratio statistics in gravitational lenses with line-of-sight haloes

D Gilman, S Birrer, T Treu, A Nierenberg… - Monthly Notices of the …, 2019 - academic.oup.com
Strong lensing provides a powerful means of investigating the nature of dark matter as it
probes dark matter structure on sub-galactic scales. We present an extension of a forward …

Low-mass halo perturbations in strong gravitational lenses at redshift z ∼ 0.5 are consistent with CDM

E Ritondale, S Vegetti, G Despali… - Monthly Notices of …, 2019 - academic.oup.com
We use a sample of 17 strong gravitational lens systems from the BELLS GALLERY survey
to quantify the amount of low-mass dark matter haloes within the lensing galaxies and along …

A lensed radio jet at milliarcsecond resolution I: Bayesian comparison of parametric lens models

DM Powell, S Vegetti, JP McKean… - Monthly Notices of …, 2022 - academic.oup.com
We investigate the mass structure of a strong gravitational lens galaxy at z= 0.350, taking
advantage of the milliarcsecond (mas) angular resolution of very long baseline …

Quantum fluctuations masquerade as haloes: bounds on ultra-light dark matter from quadruply imaged quasars

A Laroche, D Gilman, X Li, J Bovy… - Monthly Notices of the …, 2022 - academic.oup.com
Ultra-light dark matter (ULDM) refers to a class of theories, including ultra-light axions, in
which particles with mass comprise a significant fraction of the dark matter. A galactic scale …

Is every strong lens model unhappy in its own way? Uniform modelling of a sample of 13 quadruply+ imaged quasars

AJ Shajib, S Birrer, T Treu, MW Auger… - Monthly Notices of …, 2019 - academic.oup.com
Strong-gravitational lens systems with quadruply imaged quasars (quads) are unique
probes to address several fundamental problems in cosmology and astrophysics. Although …

Constraining sterile neutrino cosmologies with strong gravitational lensing observations at redshift z ∼ 0.2

S Vegetti, G Despali, MR Lovell… - Monthly Notices of the …, 2018 - academic.oup.com
We use the observed amount of subhaloes and line-of-sight dark matter haloes in a sample
of 11 gravitational lens systems from the Sloan Lens ACS Survey to constrain the free …