100 citations · 455 across the 12 of their papers we have counts for
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astro-ph.CO2013★ 100 cited
Robust Constraint on a Drifting Proton-to-Electron Mass Ratio at z=0.89 from Methanol Observation at Three Radio Telescopes
Julija Bagdonaite, Mario Daprà, Paul Jansen +5
A limit on a possible cosmological variation of the proton-to-electron mass ratio is derived from methanol (CHOH) absorption lines in the benchmark PKS1830211 lensing ga…
astro-ph.CO2011★ 68 cited
First constraint on cosmological variation of the proton-to-electron mass ratio from two independent telescopes
Freek van Weerdenburg, Michael T. Murphy, Adrian L. Malec +2
A high signal-to-noise spectrum covering the largest number of hydrogen lines (90 H2 lines and 6 HD lines) in a high redshift object was analyzed from an observation along the sigh…