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Gravitational imaging through a triple source plane lens: revisiting the CDM-defying dark subhalo in SDSSJ0946+1006
Daniel J. Ballard, Wolfgang J. R. Enzi, Thomas E. Collett +2
The CDM paradigm successfully explains the large-scale structure of the Universe, but is less well constrained on sub-galactic scales. Gravitational lens modelling has been used…
Cosmology from Large Populations of Galaxy-Galaxy Strong Gravitational Lenses
Tian Li, Thomas E. Collett, Coleman M. Krawczyk +1
We present a forecast analysis on the feasibility of measuring the cosmological parameters with a large number of galaxy-galaxy scale strong gravitational lensing systems. Future w…
Lensed type Ia supernovae in light of SN Zwicky and iPTF16geu
Ana Sainz de Murieta, Thomas E. Collett, Mark R. Magee +3
Strong gravitationally lensed supernovae (glSNe) are a powerful probe to obtain a measure of the expansion rate of the Universe, but they are also extremely rare. To date, only two…
A search for gravitationally lensed supernovae within the Zwicky Transient Facility public survey
M. R. Magee, A. Sainz de Murieta, T. E. Collett +1
Strong gravitational lensing of supernovae is exceedingly rare. To date, only a handful of lensed supernovae are known. Despite this, lensed supernovae have emerged as a promising…
Strong gravitational lensing and microlensing of supernovae
Sherry H. Suyu, Ariel Goobar, Thomas Collett +2
Strong gravitational lensing and microlensing of supernovae (SNe) are emerging as a new probe of cosmology and astrophysics in recent years. We provide an overview of this nascent…
The impact of human expert visual inspection on the discovery of strong gravitational lenses
Karina Rojas, Thomas E. Collett, Daniel Ballard +53
We investigate the ability of human 'expert' classifiers to identify strong gravitational lens candidates in Dark Energy Survey like imaging. We recruited a total of 55 people that…