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Article

New Limit on Space-Time Variations in the Proton-to-Electron Mass Ratio from Analysis of Quasar J110325-264515 Spectra

by 1,2
1
Division of Computational Physics, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam
2
Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam
Symmetry 2020, 12(3), 344; https://doi.org/10.3390/sym12030344
Received: 31 January 2020 / Revised: 16 February 2020 / Accepted: 19 February 2020 / Published: 1 March 2020
Astrophysical tests of current values for dimensionless constants known on Earth, such as the fine-structure constant, α , and proton-to-electron mass ratio, μ = m p / m e , are communicated using data from high-resolution quasar spectra in different regions or epochs of the universe. The symmetry wavelengths of [Fe II] lines from redshifted quasar spectra of J110325-264515 and their corresponding values in the laboratory were combined to find a new limit on space-time variations in the proton-to-electron mass ratio, μ / μ = ( 0.096 ± 0.182 ) × 10 7 . The results show how the indicated astrophysical observations can further improve the accuracy and space-time variations of physics constants. View Full-Text
Keywords: varying fundamental constants; ∆μ/μ; Ritz wavelengths; absorption spectra analysis varying fundamental constants; ∆μ/μ; Ritz wavelengths; absorption spectra analysis
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MDPI and ACS Style

Le, T.D. New Limit on Space-Time Variations in the Proton-to-Electron Mass Ratio from Analysis of Quasar J110325-264515 Spectra. Symmetry 2020, 12, 344. https://doi.org/10.3390/sym12030344

AMA Style

Le TD. New Limit on Space-Time Variations in the Proton-to-Electron Mass Ratio from Analysis of Quasar J110325-264515 Spectra. Symmetry. 2020; 12(3):344. https://doi.org/10.3390/sym12030344

Chicago/Turabian Style

Le, T. D. 2020. "New Limit on Space-Time Variations in the Proton-to-Electron Mass Ratio from Analysis of Quasar J110325-264515 Spectra" Symmetry 12, no. 3: 344. https://doi.org/10.3390/sym12030344

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