activity
20242026
most citedUnveiling a 36 Billion Solar Mass Black Hole at the Centre of the Cosmic Horseshoe Gravitational Lens

8 citations · 13 across the 11 of their papers we have counts for

collaborators

11 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.GA2026

The Stellar IMF and Dark Matter Halo of ESO0286: Constraints from Strong Lensing and Dynamics

Han Wang, Jens Thomas, Mathias Lipka +4

The internal mass structure of elliptical galaxies offers critical insights into galaxy formation, yet disentangling stellar mass from dark matter and determining the stellar initi…

astro-ph.GA2026

A Salpeter IMF and an NFW halo: Disentangling the dark and stellar mass of an elliptical galaxy through precise lens modelling of a double-source-plane system

Tian Li, Thomas E. Collett, Coleman M. Krawczyk +7

We present a strong lensing analysis of the double source plane lens J0946+1006 (colloquially "Jackpot" lens) to measure the inner dark matter density profile, the stellar-to-halo…

astro-ph.CO2025★ 2 cited

CSST Strong Lensing Preparation: Cosmological Constraints Forecast from CSST Galaxy-Scale Strong Lensing

Hengyu Wu, Yun Chen, Tonghua Liu +6

Strong gravitational lensing by galaxies is a powerful tool for studying cosmology and galaxy structure. The China Space Station Telescope (CSST) will revolutionize this field by d…

astro-ph.HE2025

iPTF16geu through the lens of thermonuclear explosion models

Ana Sainz de Murieta, Mark R. Magee, Tian Li +2

The magnification resulting from strong gravitational lensing is a powerful tool to add new constraints to the cosmic evolution of supernova progenitors by enabling the study of di…

astro-ph.IM2025★ 1 cited

CSST Strong Lensing Preparation: Fast Modeling of Galaxy-Galaxy Strong Lenses in the Big Data Era

Xiaoyue Cao, Ran Li, Nan Li +4

Galaxy-galaxy strong lensing provides a powerful probe of galaxy formation, evolution, and the properties of dark matter and dark energy. However, conventional lens-modeling approa…

astro-ph.GA2025★ 8 cited

Unveiling a 36 Billion Solar Mass Black Hole at the Centre of the Cosmic Horseshoe Gravitational Lens

Carlos R. Melo-Carneiro, Thomas E. Collett, Lindsay J. Oldham +4

Supermassive black holes (SMBHs) are found at the centre of every massive galaxy, with their masses tightly connected to their host galaxies through a co-evolution over cosmic time…

astro-ph.CO2025★ 2 cited

Line-of-sight effects on double source plane lenses

Daniel Johnson, Thomas Collett, Tian Li +1

Weak gravitational lensing perturbations have a non-negligible impact on strong lensing observables, and several degeneracies exist between the properties of the main lens, line of…

astro-ph.CO2024

Correcting for Selection Biases in the Determination of the Hubble Constant from Time-Delay Cosmography

Tian Li, Thomas E. Collett, Philip J. Marshall +4

The time delay between multiple images of strongly lensed quasars has been used to infer the Hubble constant. The primary systematic uncertainty for time-delay cosmography is the m…