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Observation angles, Fermi coordinates, and the Geodesic-Light-Cone gauge
We show that the angular directions locally measured by a static geodesic observer in a generic cosmological background and expressed in the system of Fermi Normal Coordinates always coincide with those expressed in the Geodesic-Light-Cone (GLC) gauge, up to a local transformation which exploits the...
| Autores principales: | , , , |
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| Lenguaje: | eng |
| Publicado: |
2018
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1088/1475-7516/2019/01/004 http://cds.cern.ch/record/2650953 |