Cargando…
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: | , |
|---|---|
| Lenguaje: | eng |
| Publicado: |
2002
|
| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1007/10857580_14 http://cds.cern.ch/record/570982 |
| _version_ | 1780899254766665728 |
|---|---|
| author | Fiorentini, Giovanni Ricci, B |
| author_facet | Fiorentini, Giovanni Ricci, B |
| author_sort | Fiorentini, Giovanni |
| collection | CERN |
| description | 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. |
| id | cern-570982 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2002 |
| record_format | invenio |
| spelling | cern-5709822019-09-30T06:29:59Zdoi:10.1007/10857580_14http://cds.cern.ch/record/570982engFiorentini, GiovanniRicci, BAlpha: A Constant That Is Not a ConstantAstrophysics and AstronomyWe 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.astro-ph/0207390INFN-FE-2002-07oai:cds.cern.ch:5709822002-07-18 |
| spellingShingle | Astrophysics and Astronomy Fiorentini, Giovanni Ricci, B Alpha: A Constant That Is Not a Constant |
| title | Alpha: A Constant That Is Not a Constant |
| title_full | Alpha: A Constant That Is Not a Constant |
| title_fullStr | Alpha: A Constant That Is Not a Constant |
| title_full_unstemmed | Alpha: A Constant That Is Not a Constant |
| title_short | Alpha: A Constant That Is Not a Constant |
| title_sort | alpha: a constant that is not a constant |
| topic | Astrophysics and Astronomy |
| url | https://dx.doi.org/10.1007/10857580_14 http://cds.cern.ch/record/570982 |
| work_keys_str_mv | AT fiorentinigiovanni alphaaconstantthatisnotaconstant AT riccib alphaaconstantthatisnotaconstant |