Four direct measurements of the fine-structure constant 13 billion years ago
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DOI: 10.1126/sciadv.aay9672
Abstract: Fine-structure constant measurements 13 Ga ago, plus lower redshift data, test space-time variation of a fundamental constant. Observations of the redshift z = 7.085 quasar J1120+0641 are used to search for variations of the fine… read more here.
Keywords: structure constant; billion years; fine structure; four direct ... See more keywords