Bahcall, John N. and Schmidt, Maarten (1967) Does the fine-structure constant vary with cosmic time? Physical Review Letters, 19 (22). pp. 1294-1295. ISSN 0031-9007. doi:10.1103/PhysRevLett.19.1294. https://resolver.caltech.edu/CaltechAUTHORS:BAHprl67
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Abstract
The fine structure constant at red shifts Δλ / λ≈0.2, corresponding to an epoch around two billion years ago, has been determined using the wavelengths of a pair of O III emission lines measured in the spectra of five radio galaxies. We find α(z=0.2) / α(lab)=1.001±0.002 probable error.
| Item Type: | Article | ||||||||
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| Additional Information: | © 1967 The American Physical Society. Received 3 November 1967. The research of one of us (J.N.B.) was supported in part by the National Science Foundation under Grant No. GP-5391, and the U.S. Office of Naval Research under Contract No. Nonr-220(47). [J.N.B. was an] Alfred P. Sloan Fellow. | ||||||||
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| Issue or Number: | 22 | ||||||||
| DOI: | 10.1103/PhysRevLett.19.1294 | ||||||||
| Record Number: | CaltechAUTHORS:BAHprl67 | ||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:BAHprl67 | ||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||
| ID Code: | 12398 | ||||||||
| Collection: | CaltechAUTHORS | ||||||||
| Deposited By: | Tony Diaz | ||||||||
| Deposited On: | 11 Dec 2008 04:34 | ||||||||
| Last Modified: | 08 Nov 2021 22:28 |
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