Publications (338)
Algorithmic bottlenecks in evolution: Genetic code, symbolic language, and the Great Filter hypothesis
Mikhail Prokopenko, Nihat Ay, Angelica Breviario +12
Revisiting The Cosmological Time Dilation of Distant Quasars: Influence of Source Properties and Evolution
Brendon J. Brewer, Geraint F. Lewis, Yuan Li
Metallicity distribution of the progenitor of the Giant Stellar Stream in the Andromeda Galaxy
Stanislav MiloÅ¡eviÄ, Miroslav MiÄiÄ, Geraint F. Lewis
The Alcubierre Warp Drive: On the Matter of Matter
Brendan McMonigal, Geraint F. Lewis, Philip O'Byrne
The photometric properties of a vast stellar substructure in the outskirts of M33
Alan W. McConnachie, Annette M. N. Ferguson, Michael J. Irwin +5
The GCE in a New Light: Disentangling the $γ$-ray Sky with Bayesian Graph Convolutional Neural Networks
Florian List, Nicholas L. Rodd, Geraint F. Lewis +1
Multiverse Predictions for Habitability: Stellar and Atmospheric Habitability
McCullen Sandora, Vladimir Airapetian, Luke Barnes +1
Was SN1997ff at z~1.7 magnified by gravitational lensing?
Geraint F. Lewis, Rodrigo A. Ibata
Unveiling M33's Hidden Merger History: A Potential Population of Star Clusters on Retrograde Orbits
Borja Anguiano, Geraint F. Lewis, Steven R. Majewski
Direct detection of the cosmic expansion: the redshift drift and the flux drift
Krzysztof Bolejko, Chengyi Wang, Geraint F. Lewis
The Pristine Inner Galaxy Survey (PIGS) I: Tracing the kinematics of metal-poor stars in the Galactic bulge
Anke Arentsen, Else Starkenburg, Nicolas F. Martin +20
The PAndAS View of the Andromeda Satellite System. III. Dwarf galaxy detection limits
Amandine Doliva-Dolinsky, Nicolas F. Martin, Guillaume F. Thomas +6
No Way Back: Maximizing survival time below the Schwarzschild event horizon
Geraint F. Lewis, Juliana Kwan
The GALAH survey: Improving chemical abundances using star clusters
Janez Kos, Sven Buder, Kevin L. Beeson +18
The Instantaneous Redshift Difference of Gravitationally Lensed Images: Theory and Observational Prospects
Chengyi Wang, Krzysztof Bolejko, Geraint F. Lewis
Streams on FIRE: Populations of Detectable Stellar Streams in the Milky Way and FIRE
Nora Shipp, Nondh Panithanpaisal, Lina Necib +18
Chemical Abundances in the Leiptr Stellar Stream: A Disrupted Ultra-faint Dwarf Galaxy?
Kaia R. Atzberger, Sam A. Usman, Alexander P. Ji +11
PAndAS' cubs: discovery of two new dwarf galaxies in the surroundings of the Andromeda and Triangulum galaxies
Nicolas F. Martin, Alan W. McConnachie, Mike Irwin +10
Halo Mass Functions in Early Dark Energy Cosmologies
Matthew J. Francis, Geraint F. Lewis, Eric V. Linder
Investigating dark matter substructure with pulsar timing: II. Improved limits on small-scale cosmology
Hamish A. Clark, Geraint F. Lewis, Pat Scott
Submillimeter Observations of the Ultraluminous BAL Quasar APM 08279+5255
Geraint F. Lewis, Scott C. Chapman, Rodrigo A. Ibata +2
Big Bang Nucleosynthesis Initial Conditions: Revisiting Wagoner et al. (1967)
Charlie Sharpe, Geraint F. Lewis, Luke A. Barnes
Cosmography with the Double Source Plane Strong Gravitational Lens AGEL150745+052256
Nandini Sahu, Anowar J. Shajib, Kim-Vy Tran +14
Investigating dark matter substructure with pulsar timing: I. Constraints on ultracompact minihalos
Hamish A. Clark, Geraint F. Lewis, Pat Scott
The GALAH survey: Elemental abundances in open clusters using joint effective temperature and surface gravity photometric priors
Kevin L. Beeson, Janez Kos, Richard de Grijs +10
Detection of the Cosmological Time Dilation of High Redshift Quasars
Geraint F. Lewis, Brendon J. Brewer
Microlensing and Photon Bunching: The impact of decoherence
Geraint F. Lewis, Peter Tuthill
Detecting Dark Matter in High Velocity Clouds
Geraint F. Lewis, Joss Bland-Hawthorn, Brad C. Gibson +1
Local environmental dependence on weak-lensing shear statistics
Sonia Akter Ema, Md Rasel Hossen, Krzysztof Bolejko +1
A SkyMapper view of the Large Magellanic Cloud: The dynamics of stellar populations
Zhen Wan, Magda Guglielmo, Geraint F. Lewis +2
Reliable mass calculation in spherical gravitating systems
Foivos I. Diakogiannis, Geraint F. Lewis, Rodrigo A. Ibata +3
Metal Abundances in the Lyman Alpha Forest
Sara L. Ellison, Geraint F. Lewis, Max Pettini +3
The Information Content of Quasar Variability Light Curves: How Well Can we Infer Stochastic Model Parameters?
Brendon J. Brewer, Geraint F. Lewis, Xiang Yu +1
The SAMI Galaxy Survey: Gas velocity dispersions in low-$z$ star-forming galaxies and the drivers of turbulence
Mathew R. Varidel, Scott M. Croom, Geraint F. Lewis +18
Detailed Chemical Abundance Analysis of the Brightest Stars in the Turranburra and Willka Yaku Stellar Streams
Kaitlin B. Webber, Terese T. Hansen, Jennifer L. Marshall +20
Measuring the Mass of the Large Magellanic Cloud with Stellar Streams Observed by ${S}^5$
Nora Shipp, Denis Erkal, Alex Drlica-Wagner +16
Warm Dark Haloes Accretion Histories and their Gravitational Signatures
Pascal J. Elahi, Hareth S. Mahdi, Chris Power +1
Producing the Deuteron in Stars: Anthropic Limits on Fundamental Constants
Luke A. Barnes, Geraint F. Lewis
Probing the Atmospheres of Planets Orbiting Microlensed Stars via Polarization Variability
Geraint F. Lewis, Rodrigo A. Ibata
The Pristine Inner Galaxy Survey (PIGS) VIII: Characterising the orbital properties of the ancient, very metal-poor inner Milky Way
Anke Ardern-Arentsen, Giacomo Monari, Anna B. A. Queiroz +19
Solo dwarfs III: Exploring the orbital origins of isolated Local Group galaxies with Gaia Data Release 2
Alan W. McConnachie, Clare R. Higgs, Guillaume F. Thomas +4
Seeing Star Formation Regions with Gravitational Microlensing
Rodrigo Gil-Merino, Geraint F. Lewis
Trans-Dimensional Bayesian Inference for Gravitational Lens Substructures
Brendon J. Brewer, David Huijser, Geraint F. Lewis
The Hierarchical Structure of Galactic Haloes: Generalised N-Dimensional Clustering with CluSTAR-ND
William H. Oliver, Pascal J. Elahi, Geraint F. Lewis
On the Shoulders of Giants: Properties of the Stellar Halo and the Milky Way Mass Distribution
Prajwal R. Kafle, Sanjib Sharma, Geraint F. Lewis +1
Flipping of the tidal tails of the Ophiuchus stream due to the decelerating Galactic bar
Yong Yang, Geraint F. Lewis, Denis Erkal +16
Probing the independence within the dark sector in the fluid approximation
Lawrence Dam, Krzysztof Bolejko, Geraint F. Lewis
Stochastic Star Formation & Feedback: Mapping Low-Mass Galaxies to Dark Matter Haloes
Chris Power, Graham A. Wynn, Aaron S. G. Robotham +2
The GALAH Survey: Verifying abundance trends in the open cluster M67 using non-LTE spectroscopy
Xudong Gao, Karin Lind, Anish M. Amarsi +28
Halo globular clusters observed with AAOmega: dark matter content, metallicity and tidal heating
Richard R. Lane, László L. Kiss, Geraint F. Lewis +6
The GALAH+ Survey: Third Data Release
Sven Buder, Sanjib Sharma, Janez Kos +44
The GALAH survey: unresolved triple Sun-like stars discovered by the Gaia mission
Klemen Äotar, Tomaž Zwitter, Gregor Traven +16
Hydrodynamical simulations of coupled and uncoupled quintessence models I: Halo properties and the cosmic web
Edoardo Carlesi, Alexander Knebe, Geraint F. Lewis +2
Candidate Periodically Variable Quasars from the Dark Energy Survey and the Sloan Digital Sky Survey
Yu-Ching Chen, Xin Liu, Wei-Ting Liao +62
Submillimetre observations of a sample of broad absorption line quasars
Geraint F. Lewis, Scott C. Chapman, Zdenka Kuncic
The PAndAS Field of Streams: stellar structures in the Milky Way halo toward Andromeda and Triangulum
Nicolas F. Martin, Rodrigo A. Ibata, R. Michael Rich +16
The large-scale structure of the halo of the Andromeda galaxy II. Hierarchical structure in the Pan-Andromeda Archaeological Survey
Alan W. McConnachie, Rodrigo Ibata, Nicolas Martin +29
Boötes III is a Tidally Disrupting Ultra-Faint Dwarf Galaxy on an Eccentric Polar Orbit
Ting S. Li, Denis Erkal, Andrew B. Pace +20
A Keck/DEIMOS Kinematic Study of Andromeda IX: dark matter on the smallest galactic scales
Scott C. Chapman, Rodrigo Ibata, Geraint F. Lewis +4
Anisotropy in the Distribution of Satellite Galaxy Orbits
Alexander Knebe, Stuart P. D. Gill, Brad K. Gibson +3
Combined APOGEE-GALAH stellar catalogues using the Cannon
Govind Nandakumar, Michael R. Hayden, Sanjib Sharma +21
Can Early Dark Energy be Detected in Non-Linear Structure?
Matthew J. Francis, Geraint F. Lewis, Eric V. Linder
Heating of galactic gas by dark matter annihilation in ultracompact minihalos
Hamish A. Clark, Nikolas Iwanus, Pascal J. Elahi +2
Hydrodynamical simulations of coupled and uncoupled quintessence models II: Galaxy clusters
Edoardo Carlesi, Alexander Knebe, Geraint F. Lewis +1
Gravitational Lensing Reveals Cool Gas within 10-20 kpc around a Quiescent Galaxy
Tania M. Barone, Glenn G. Kacprzak, James W. Nightingale +12
Interpreting microlensing signal in QSO 2237+0305: Stars or planets?
Rodrigo Gil-Merino, Geraint F. Lewis
The PAndAS view of the Andromeda satellite system - II. Detailed properties of 23 M31 dwarf spheroidal galaxies
Nicolas F. Martin, Rodrigo A. Ibata, Geraint F. Lewis +15
The GALAH Survey: Stellar streams and how stellar velocity distributions vary with Galactic longitude, hemisphere and metallicity
Alice C. Quillen, Gayandhi De Silva, Sanjib Sharma +30
Gravitational microlensing of quasar broad line regions at large optical depths
Geraint F. Lewis, Rodrigo A. Ibata
Microlensing of Microlensing: Effects of Random Stars on the Double-Source-Plane Gravitational Lens
Nada Salama, Daniel J. Ballard, Huimin Qu +2
The Star Formation History and Dust Content in the Far Outer Disc of M31
Edouard J. Bernard, Annette M. N. Ferguson, Michael K. Barker +7
The Power of High Precision Broadband Photometry: Tracing the Milky Way Density Profile with Blue Horizontal Branch stars in the Dark Energy Survey
Fengqing Yu, Ting S. Li, Joshua S. Speagle +9
Resolved nuclear CO(1-0) emission in APM08279+5255: Gravitational lensing by a naked cusp?
Geraint F. Lewis, Chris Carilli, Padeli Papadopoulos +1
The SAMI Galaxy Survey: Bayesian Inference for Gas Disk Kinematics using a Hierarchical Gaussian Mixture Model
Mathew R. Varidel, Scott M. Croom, Geraint F. Lewis +20
The GALAH survey: The data reduction pipeline
Janez Kos, Jane Lin, Tomaž Zwitter +29
Resolving the mass--anisotropy degeneracy of the spherically symmetric Jeans equation I: theoretical foundation
Foivos I. Diakogiannis, Geraint F. Lewis, Rodrigo A. Ibata
The density distributions of cosmic structures: impact of the local environment on weak-lensing convergence
Sonia Akter Ema, Md Rasel Hossen, Krzysztof Bolejko +1
Qualitative aspects of quasar microlensing with two mass components: magnification patterns and probability distributions
Paul L. Schechter, Joachim Wambsganss, Geraint F. Lewis
Gravitational microlensing of stars with transiting planets
Geraint F. Lewis
The GALAH Survey: Chemical tagging and chrono-chemodynamics of accreted halo stars with GALAH+ DR3 and $Gaia$ eDR3
Sven Buder, Karin Lind, Melissa K. Ness +27
Gravitational Microlensing Time Delays at High Optical Depth: Image Parities and the Temporal Properties of Fast Radio Bursts
Geraint F. Lewis
Comparing the Quenching Times of Faint M31 and Milky Way Satellite Galaxies
Daniel R. Weisz, Nicolas F. Martin, Andrew E. Dolphin +8
Rotational Kinematics in the Globular Cluster System of M31: Insights from Bayesian Inference
Yuan Li, Brendon J. Brewer, Geraint F. Lewis +1
The X-ray Transient 2XMMi J003833.3+402133: A Candidate Magnetar at High Galactic Latitude
Joseph R. Callingham, Sean A. Farrell, Bryan M. Gaensler +2
The GALAH survey: Chemical homogeneity of the Orion complex
Janez Kos, Joss Bland-Hawthorn, Sven Buder +17
Astrophysical Tests of Dark Matter with Maunakea Spectroscopic Explorer
Ting S. Li, Manoj Kaplinghat, Keith Bechtol +27
The GALAH Survey: Stellar parameters and abundances for 800,000 Gaia RVS spectra using GALAH DR4 and The Cannon
Pradosh Barun Das, Daniel B. Zucker, Gayandhi M. De Silva +15
The Influence of Evolving Dark Energy on Cosmology
Luke Barnes, Matthew J. Francis, Geraint F. Lewis +1
Probing the Nature of the G1 Clump Stellar Overdensity in the Outskirts of M31
Daniel Faria, Rachel A. Johnson, Annette M. N. Ferguson +5
Streams and Shells Decoded: A Density-Driven Approach to Stellar Clustering in Galactic Halos with AstroLink
Viraj Ekanayaka, Smrithi Gireesh Babu, William H. Oliver +1
Observational window effects on multi-object Reverberation Mapping
Umang Malik, Rob Sharp, Paul Martini +6
The GALAH+ Survey: A New Library of Observed Stellar Spectra Improves Radial Velocities and Hints at Motions within M67
Tomaž Zwitter, Janez Kos, Sven Buder +25
The Southern Stellar Stream Spectroscopic Survey (S5): Chemical Abundances of Seven Stellar Streams
Alexander P. Ji, Ting S. Li, Terese T. Hansen +16
The PAndAS view of the Andromeda satellite system - I. A Bayesian search for dwarf galaxies using spatial and color-magnitude information
Nicolas F. Martin, Rodrigo A. Ibata, Alan W. McConnachie +5
On Cosmological Low Entropy After the Big Bang: Universal Expansion and Nucleosynthesis
Charlie F. Sharpe, Luke A. Barnes, Geraint F. Lewis
Lyman alpha absorbers in motion: consequences of gravitational lensing for the cosmological redshift drift experiment
Madhura Killedar, Geraint F. Lewis
SCUBA observations of Hawaii 167
Geraint F. Lewis, Scott C. Chapman
Understanding the nature of the optically faint radio sources and their connection to the submillimeter population
Scott C. Chapman, Geraint F. Lewis, Douglas Scott +2
Mapping the tilt of the Milky Way bulge velocity ellipsoids with ARGOS and $Gaia$ DR2
Iulia T. Simion, Juntai Shen, Sergey E. Koposov +4
Hidden from view: Coupled Dark Sector Physics and Small Scales
Pascal J. Elahi, Geraint F. Lewis, Chris Power +2