Precise limits on cosmological variability of the fine-structure constant with zinc and chromium quasar absorption lines von Murphy, Michael T., Malec, Adrian L., Prochaska, J. Xavier

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Erratum: Precise limits on cosmological variability of the fine-structure constant with zinc and chromium quasar absorption lines von Murphy, Michael T., Malec, Adrian L., Prochaska, J. Xavier

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Precise limits on cosmological variability of the fine-structure constant with zinc and chromium quasar absorption lines von Murphy, Michael T, Malec, Adrian L, Prochaska, J Xavier

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First constraint on cosmological variation of the proton-to-electron mass ratio from two independent telescopes von Freek van Weerdenburg, Murphy, Michael T, Malec, Adrian L, Kaper, Lex, Ubachs, Wim

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New limit on a varying proton-to-electron mass ratio from high-resolution optical quasar spectra von Malec, Adrian L, Buning, Ruth, Murphy, Michael T, Milutinovic, Nikola, Ellison, S L, Prochaska, J Xavier, Kaper, Lex, Tumlinson, Jason, Carswell, Robert F, Ubachs, Wim

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Keck telescope constraint on cosmological variation of the proton-to-electron mass ratio von Malec, Adrian L, Buning, Ruth, Murphy, Michael T, Milutinovic, Nikola, Ellison, S L, Prochaska, J Xavier, Kaper, Lex, Tumlinson, Jason, Carswell, Robert F, Ubachs, Wim

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