W. Ubachs

activity

20112019

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

100 citations · 455 across the 12 of their papers we have counts for

collaborators

Showing 2011Show all

2 papers · 1 filter

physics.atom-ph2011★ 77 cited

QED effects in molecules: test on rotational quantum states of H $_{2}$

E. J. Salumbides, G. D. Dickenson, T. I. Ivanov +1

Quantum electrodynamic effects have been systematically tested in the progression of rotational quantum states in the $X^{1} Σ_{g}^{+}, v = 0$ vibronic ground state of molecular hydr…

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…

QED effects in molecules: test on rotational quantum states of H2​

First constraint on cosmological variation of the proton-to-electron mass ratio from two independent telescopes

QED effects in molecules: test on rotational quantum states of H $_{2}$