activity
20082026
most citedThe Sloan Digital Sky Survey Quasar Catalog V. Seventh Data Release

972 citations · 2.9k across the 27 of their papers we have counts for

collaborators

27 papers

astro-ph.CO2026

Harnessing stellar kinematics to constrain dark energy with the double-source-plane gravitational lens SDSS J0946+1006

Daniel J. Ballard, Wolfgang J. R. Enzi, Thomas E. Collett +6

SDSS J0946+1006 is an attractive target for measuring cosmological parameters through lens modelling. It is the best-studied galaxy-scale strong gravitational lens with multiple so…

astro-ph.GA2026

Disentangling the dark and stellar mass through precise lens modelling of the JWST observation of lensed quasar WFI2033--4723

Tian Li, Thomas E. Collett, Coleman M. Krawczyk +2

We use high-resolution JWST/NIRCam imaging and measured time delays to model the quadruply imaged quasar WFI2033--4723 with a composite stellar plus dark-matter mass model. We firs…

astro-ph.IM2026

Gaussian processes on ray-guided transformed uniform grids for fast, flexible, and auto-differentiable adaptive source reconstruction in lens modelling

Wolfgang J. R. Enzi, Coleman M. Krawczyk, Tian Li +1

Strong gravitational lensing constrains cosmology and dark matter, but robust inference requires accurate source reconstruction. The achievable source resolution is highly position…

astro-ph.CO2024★ 3 cited

The overconcentrated dark halo in the strong lens SDSS J0946+1006 is a subhalo: evidence for self interacting dark matter?

Wolfgang J. R. Enzi, Coleman M. Krawczyk, Daniel J. Ballard +1

The nature of dark matter is poorly constrained on subgalactic scales. Alternative models to cold dark matter, such as warm dark matter or self-interacting dark matter, could produ…

astro-ph.IM2024★ 2 cited

Communicating the gravitational-wave discoveries of the LIGO-Virgo-KAGRA Collaboration

Hannah Middleton, Christopher P L Berry, Nicolas Arnaud +34

The LIGO-Virgo-KAGRA (LVK) Collaboration has made breakthrough discoveries in gravitational-wave astronomy, a new field that provides a different means of observing our Universe. G…

astro-ph.GA2024★ 1 cited

How to Break the Mass Sheet Degeneracy with the Lightcurves of Microlensed Type Ia Supernovae

Luke Weisenbach, Thomas Collett, Ana Sainz de Murieta +4

The standardizable nature of gravitationally lensed Type Ia supernovae (glSNe Ia) makes them an attractive target for time delay cosmography, since a source with known luminosity b…