839 citations · 24.6k across the 409 of their papers we have counts for
36 papers · 1 filter
The One-Way Speed of Light and the Milne Universe
Geraint F. Lewis, Luke A. Barnes
In Einstein's Special Theory of Relativity, all observers measure the speed of light, , to be the same. However, this refers to the round trip speed, where a clock at the origin…
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
We measure systemic proper motions for distant dwarf galaxies in the Local Group and investigate if these isolated galaxies have ever had an interaction with the Milky Way or M31.…
The Dark Energy Survey Supernova Program: Modelling selection efficiency and observed core collapse supernova contamination
M. Vincenzi, M. Sullivan, O. Graur +79
The analysis of current and future cosmological surveys of type Ia supernovae (SNe Ia) at high-redshift depends on the accurate photometric classification of the SN events detected…
The Hierarchical Structure of Galactic Haloes: Classification and characterisation with Halo-OPTICS
William H. Oliver, Pascal J. Elahi, Geraint F. Lewis +1
We build upon Ordering Points To Identify Clustering Structure (OPTICS), a hierarchical clustering algorithm well-known to be a robust data-miner, in order to produce Halo-OPTICS,…
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
GALAH+ is a magnitude-limited survey of high resolution stellar spectra obtained by the HERMES spectrograph at the Australian Astronomical Observatory. Its third data release provi…
Under an Iron Sky: On the Entropy at the Start of the Universe
Luke A. Barnes, Geraint F. Lewis
Curiously, our Universe was born in a low entropy state, with abundant free energy to power stars and life. The form that this free energy takes is usually thought to be gravitatio…