most citedRobust Constraint on a Drifting Proton-to-Electron Mass Ratio at z=0.89 from Methanol Observation at Three Radio Telescopes

100 citations · 158 across the 2 of their papers we have counts for

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astro-ph.CO2014★ 58 cited

Constraints on changes in the proton-electron mass ratio using methanol lines

N. Kanekar, W. Ubachs, K. M. Menten +6

We report Karl G. Jansky Very Large Array (VLA) absorption spectroscopy in four methanol (CHOH) lines in the gravitational lens towards PKS1830-211. Three of the…

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…