7.7k citations · 8.2k across the 8 of their papers we have counts for
10 papers
The Astropy Project: Building an inclusive, open-science project and status of the v2.0 core package
The Astropy Collaboration, A. M. Price-Whelan, B. M. Sipőcz +134
The Astropy project supports and fosters the development of open-source and openly-developed Python packages that provide commonly-needed functionality to the astronomical communit…
A constraint on a varying proton--electron mass ratio 1.5 billion years after the Big Bang
J. Bagdonaite, W. Ubachs, M. T. Murphy +1
A molecular hydrogen absorber at a lookback time of 12.4 billion years, corresponding to 10 of the age of the universe today, is analyzed to put a constraint on a varying proto…
The UVES Large Program for testing fundamental physics - III. Constraints on the fine-structure constant from 3 telescopes
T. M. Evans, M. T. Murphy, J. B. Whitmore +10
Large statistical samples of quasar spectra have previously indicated possible cosmological variations in the fine-structure constant, . A smaller sample of higher signal-to-noi…
Impact of instrumental systematic errors on fine-structure constant measurements with quasar spectra
J. B. Whitmore, M. T. Murphy
We present a new `supercalibration' technique for measuring systematic distortions in the wavelength scales of high resolution spectrographs. By comparing spectra of `solar twin' s…
Fundamental constants and high resolution spectroscopy
P. Bonifacio, H. Rahmani, J. B. Whitmore +14
Absorption-line systems detected in high resolution quasar spectra can be used to compare the value of dimensionless fundamental constants such as the fine-structure constant, alph…
Analysis of Molecular Hydrogen Absorption toward QSO B0642-5038 for a Varying Proton-to-Electron Mass Ratio
Julija Bagdonaite, Wim Ubachs, Michael T. Murphy +1
Rovibronic molecular hydrogen (H) transitions at redshift towards the background quasar B06425038 are examined for a possible cosmological variati…