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Alpha: A Constant That Is Not a Constant
We review the observational information on the constancy of the fine structure constant $\alpha$. We find that small improvements on the measurement of $^{187}Re$ lifetime can provide significant progress in exploring the range of variability suggested by QSO data. We also discuss the effects of a t...
| Autores principales: | , |
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| Lenguaje: | eng |
| Publicado: |
2002
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1007/10857580_14 http://cds.cern.ch/record/570982 |
| Sumario: | We review the observational information on the constancy of the fine structure constant $\alpha$. We find that small improvements on the measurement of $^{187}Re$ lifetime can provide significant progress in exploring the range of variability suggested by QSO data. We also discuss the effects of a time varying $\alpha$ on stellar structure and evolution. We find that radioactive dating of ancient stars can offer a new observational window. |
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