Wavelengths of [Fe II] from quasar J110325-264515 for a study of space-time variations in the fine-structure constant

We report a new stringent limit relating to the space-time variation in the fine-structure constant α=e24πε0ℏc from an analysis of quasar J110325-264515 towards zabs=1.8389. We find Δα/α=(1.56±1.78)×10-6 from a comparison of laboratory wavelengths of [Fe II] with those found in quasar spectra. The o...

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Bibliographic Details
Main Author: T.D. Le
Format: Article
Language:English
Published: Elsevier 2019-03-01
Series:Results in Physics
Online Access:http://www.sciencedirect.com/science/article/pii/S2211379718328213