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A joint model for the emission and absorption properties of damped Lyman alpha absorption systems
Luke A. Barnes, Martin G. Haehnelt
The recently discovered population of ultra-faint extended line emitters can account for the majority of the incidence rate of Damped Lyman Alpha systems (DLAs) at z ~ 3 if the lin…
Cosmological Radar Ranging in an Expanding Universe
Geraint F. Lewis, Matthew J. Francis, Luke A. Barnes +2
While modern cosmology, founded in the language of general relativity, is almost a century old, the meaning of the expansion of space is still being debated. In this paper, the que…
Coordinate Confusion in Conformal Cosmology
Geraint F. Lewis, Matthew J. Francis, Luke A. Barnes +1
A straight-forward interpretation of standard Friedmann-Lemaitre-Robertson-Walker (FLRW) cosmologies is that objects move apart due to the expansion of space, and that sufficiently…
Expanding Space: the Root of all Evil?
Matthew J. Francis, Luke A. Barnes, J. Berian James +1
While it remains the staple of virtually all cosmological teaching, the concept of expanding space in explaining the increasing separation of galaxies has recently come under fire…
Joining the Hubble Flow: Implications for Expanding Space
Luke A. Barnes, Matthew J. Francis, J. Berian James +1
The concept of expanding space has come under fire recently as being inadequate and even misleading in describing the motion of test particles in the universe. Previous investigati…
The Influence of Evolving Dark Energy on Cosmology
Luke Barnes, Matthew J. Francis, Geraint F. Lewis +1
Observational evidence indicating that the expansion of the universe is accelerating has surprised cosmologists in recent years. Cosmological models have sought to explain this acc…