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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 proton--electron mass ratio, $\mu$.
B. Ratra and P. J. E. Peebles, “Cosmological consequences of a rolling homogeneous scalar field,” Phys. Rev. D 37
1988
Earlier work this paper cites.
T. Damour and F. Dyson, “The Oklo bound on the time variation of the fine-structure constant revisited,” Nucl. Phys. B 480
1996
Earlier work this paper cites.
S. M. Carroll, “Quintessence and the rest of the world: Suppressing long-range interactions,” Phys. Rev. Lett. 81
1998
Earlier work this paper cites.
J. D. Bekenstein, “Fine-structure constant variability, equivalence principle, and cosmology,” Phys. Rev. D 66
2002
Earlier work this paper cites.
H. B. Sandvik, J. D. Barrow, and J. Magueijo, “A simple cosmology with a varying fine structure constant,” Phys. Rev. Lett. 88
2002
Earlier work this paper cites.
M. T. Murphy, J. K. Webb, and V. V. Flambaum, “Further evidence for a variable fine-structure constant from Keck/HIRES QSO absorption spectra,” Mon. Not. Roy. Astron. Soc. 345
2003
Earlier work this paper cites.
C. Ledoux, P. Petitjean, and R. Srianand, “Molecular hydrogen in a damped Ly α \alpha system at z abs = 4.224 z_{\textrm{abs}}=4.224 ,” Astroph. J. Lett. 640
2006
Earlier work this paper cites.
W. Ubachs, R. Buning, K. S. E. Eikema, and E. Reinhold, “On a possible variation of the proton-to-electron mass ratio: H 2
2007
Earlier work this paper cites.
T. Rosenband, D. B. Hume, P. O. Schmidt, C. W. Chou, A. Brusch, L. Lorini, W. H. Oskay, R. E. Drullinger, T. M. Fortier, J. E. Stalnaker, S. A. Diddams, W. C. Swann, N. R. Newbury, W. M. Itano, D. J. Wineland, and J. C. Bergquist, “Frequency ratio of Al +
2008
Earlier work this paper cites.
J. A. King, J. K. Webb, M. T. Murphy, and R. F. Carswell, “Stringent null constraint on cosmological evolution of the proton-to-electron mass ratio,” Phys. Rev. Lett. 101
2008
Earlier work this paper cites.
P. Molaro, S. A. Levshakov, S. Monai, M. Centurión, P. Bonifacio, S. D’Odorico, and L. Monaco, “UVES radial velocity accuracy from asteroid observations. I. Implications for fine structure constant variability,” Astron. Astrophys. 481
2008
Earlier work this paper cites.
C. Henkel, K. M. Menten, M. T. Murphy, N. Jethava, V. V. Flambaum, J. A. Braatz, S. Muller, J. Ott, and R. Q. Mao, “The density, the cosmic microwave background, and the proton-to-electron mass ratio in a cloud at redshift 0.9,” Astron. Astrophys. 500
2009
Cited alongside, same era.
A. L. Malec, R. Buning, M. T. Murphy, N. Milutinovic, S. L. Ellison, J. X. Prochaska, L. Kaper, J. Tumlinson, R. F. Carswell, and W. Ubachs, “Keck telescope constraint on cosmological variation of the proton-to-electron mass ratio,” Mon. Not. Roy. Astron. Soc. 403
2010
Cited alongside, same era.
J. B. Whitmore, M. T. Murphy, and K. Griest, “Wavelength calibration of the VLT-UVES spectrograph,” Astrophys. J. 723
2010
Cited alongside, same era.
N. Kanekar, “Constraining changes in the proton-electron mass ratio with inversion and rotational lines,” Astroph. J. Lett. 728
2011
Cited alongside, same era.
S. A. Levshakov, F. Combes, F. Boone, I. I. Agafonova, D. Reimers, and M. G. Kozlov, “An upper limit to the variation in the fundamental constants at redshift z = 5.2 z=5.2
2012
Later among the works it cites.
J. C. Berengut, E. Epelbaum, V. V. Flambaum, C. Hanhart, U.-G. Meißner, J. Nebreda, and J. R. Peláez, “Varying the light quark mass: Impact on the nuclear force and big bang nucleosynthesis,” Phys. Rev. D 87
2013
Later among the works it cites.
J. Bagdonaite, P. Jansen, C. Henkel, H. L. Bethlem, K. M. Menten, and W. Ubachs, “A stringent limit on a drifting proton-to-electron mass ratio from alcohol in the early universe,” Science 339
2013
Later among the works it cites.
D. A. Riechers, C. M. Bradford, D. L. Clements, C. D. Dowell, I. Pérez-Fournon, R. J. Ivison, C. Bridge, A. Conley, H. Fu, J. D. Vieira, et al. , “A dust-obscured massive maximum-starburst galaxy at a redshift of 6.34,” Nature 496
2013
Later among the works it cites.
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F. van Weerdenburg, M. T. Murphy, A. L. Malec, L. Kaper, and W. Ubachs, “First constraint on cosmological variation of the proton-to-electron mass ratio from two independent telescopes,” Phys. Rev. Lett. 106
2011
Cited alongside, same era.
J. A. King, M. T. Murphy, W. Ubachs, and J. K. Webb, “New constraint on cosmological variation of the proton-to-electron mass ratio from Q0528 − - 250,” Mon. Not. Roy. Astron. Soc. 417
2011
Cited alongside, same era.
S. Perlmutter, “Nobel Lecture: Measuring the acceleration of the cosmic expansion using supernovae,” Rev. Mod. Phys. 84
2012
Cited alongside, same era.
B. P. Schmidt, “Nobel Lecture: Accelerating expansion of the Universe through observations of distant supernovae,” Rev. Mod. Phys. 84
2012
Cited alongside, same era.
A. G. Riess, “Nobel Lecture: My path to the accelerating Universe,” Rev. Mod. Phys. 84
2012
Cited alongside, same era.
M. Wendt and P. Molaro, “QSO 0347 − - 383 and the invariance of m p
2012
Cited alongside, same era.
J. Bagdonaite, M. T. Murphy, L. Kaper, and W. Ubachs, “Constraint on a variation of the proton-to-electron mass ratio from H 2
2012
Cited alongside, same era.
M. T. Murphy, V. V. Flambaum, S. Muller, and C. Henkel, “Strong limit on a variable proton-to-electron mass ratio from molecules in the distant universe,” Science 320
Cited in the paper.
H. Rahmani, M. Wendt, R. Srianand, P. Noterdaeme, P. Petitjean, P. Molaro, J. B. Whitmore, M. T. Murphy, M. Centurion, H. Fathivavsari, et al. , “The UVES large program for testing fundamental physics - II. Constraints on a change in μ \mu towards quasar HE 0027 − - 1836,” Mon. Not. Roy. Astron. Soc. 435
2013
Later among the works it cites.
R. I. Thompson, C. J. A. P. Martins, and P. E. Vielzeuf, “Constraining cosmologies with fundamental constants - I. Quintessence and K-essence,” Mon. Not. Roy. Astron. Soc. 428
2013
Later among the works it cites.
P. Jansen, H. L. Bethlem, and W. Ubachs, “Perspective: Tipping the scales: Search for drifting constants from molecular spectra,” J. Chem. Phys. 140
2014
Later among the works it cites.
M. C. Ferreira, O. Frigola, C. J. A. P. Martins, A. M. R. V. L. Monteiro, and J. Solà, “Consistency tests of the stability of fundamental couplings and unification scenarios,” Phys. Rev. D 89
2014
Later among the works it cites.
J. Bagdonaite, W. Ubachs, M. T. Murphy, and J. B. Whitmore, “Analysis of molecular hydrogen absorption toward QSO B0642 − - 5038 for a varying proton-to-electron mass ratio,” Astrophys. J. 782
2014
Later among the works it cites.
P. Brax, “Environmental variation of constants in screened modified theories of gravity,” Phys. Rev. D 90
2014
Later among the works it cites.
J. B. Whitmore and M. T. Murphy, “Impact of instrumental systematic errors on fine-structure constant measurements with quasar spectra,” Mon. Not. Roy. Astron. Soc. 447
2015
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