839 citations · 24.6k across the 409 of their papers we have counts for
30 papers · 1 filter
Cosmological Signatures of Dark Sector Physics: The Evolution of Haloes and Spin Alignment
Absem W. Jibrail, Pascal J. Elahi, Geraint F. Lewis
The standard cosmological paradigm currently lacks a detailed account of physics in the dark sector, the dark matter and energy that dominate cosmic evolution. In this paper, we co…
A SkyMapper view of the Large Magellanic Cloud: The dynamics of stellar populations
Zhen Wan, Magda Guglielmo, Geraint F. Lewis +2
We present the first SkyMapper stellar population analysis of the Large Magellanic Cloud (hereafter LMC),including the identification of 3578 candidate Carbon Stars through their e…
A Geometric Probe of Cosmology: I. Gravitational Lensing Time Delays and Quasar Reverberation Mapping
Angela L. H. Ng, Geraint F. Lewis
We present a novel, purely geometric probe of cosmology based on measurements of differential time delays between images of strongly lensed quasars due to finite source effects. Ou…
On the origin of the asymmetric dwarf galaxy distribution around Andromeda
Zhen Wan, William H. Oliver, Geraint F. Lewis +2
The dwarf galaxy distribution surrounding M31 is significantly anisotropic in nature. Of the 30 dwarf galaxies in this distribution, 15 form a disc-like structure and 23 are contai…
Microlensing and Photon Bunching: The impact of decoherence
Geraint F. Lewis, Peter Tuthill
Gravitational microlensing within the Galaxy offers the prospect of probing the details of distant stellar sources, as well as revealing the distribution of compact (and potentiall…
The GALAH Survey: Temporal Chemical Enrichment of the Galactic Disk
Jane Lin, Martin Asplund, Yuan-Sen Ting +22
We present isochrone ages and initial bulk metallicities (, by accounting for diffusion) of 163,722 stars from the GALAH Data Release 2, mainly composed of main…