4 citations · 7 across the 6 of their papers we have counts for
6 papers
Beyond CDM: fundamental constants as cosmological observables
Dinko Milaković, John K. Webb
Recent cosmological tensions pose difficulties for CDM. Forthcoming facilities will be able to check whether these tensions result from systematic effects or indeed with the …
Searching for new physics using high precision absorption spectroscopy; continuum placement uncertainties and the fine structure constant in strong gravity
Chung-Chi Lee, John K. Webb, Darren Dougan +3
Searches for variations of fundamental constants require a comprehensive understanding of measurement errors. This paper examines a source of error that is usually overlooked: the…
Searching for new physics using high precision absorption spectroscopy; continuum placement uncertainties and towards the quasar PHL957
John K. Webb, Chung-Chi Lee, Dinko Milaković +3
Detecting or placing upper limits on spacetime variations of fundamental constants requires quantifying every potential source of uncertainty. We continue our previous study into t…
Isotopic abundance of carbon in the DLA towards QSO B1331+170
Dinko Milaković, John K. Webb, Paolo Molaro +19
Chemical evolution models predict a gradual build-up of C in the universe, based on empirical nuclear reaction rates and assumptions on the properties of stellar populations…
The Mystery of Alpha and the Isotopes
John K. Webb, Chung-Chi Lee, Dinko Milakovic +3
We report unbiased AI measurements of the fine structure constant in two proximate absorption regions in the spectrum of the quasar HE05154414. The data are high resolution,…
Convergence properties of fine structure constant measurements using quasar absorption systems
John K. Webb, Chung-Chi Lee
Searches for spacetime variations of fundamental constants have entered an era of unprecedented precision. New, high quality quasar spectra require increasingly refined analytic me…