Interpretations of cosmological spectral shifts

• Authors: Dag Østvang
• Languages of publication: EN

Abstracts

EN

It is shown that for Robertson-Walker models with flat or closed space sections, all of the cosmological spectral shift can be attributed to the non-flat connection (and thus indirectly to space-time curvature). For Robertson-Walker models with hyperbolic space sections, it is shown that cosmological spectral shifts uniquely split up into “kinematic” and “gravitational” parts provided that distances are small. For large distances no such unique split-up exists in general. A number of common, but incorrect assertions found in the literature regarding interpretations of cosmological spectral shifts, is pointed out.

Keywords

EN

cosmological spectral shifts: interpretations; Robertson-Walker models; cosmological spectral shifts: split-up; popular cosmology: fallacies

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2013
• Volume: 11
• Issue: 3
• Pages: 269-278

Dates

published

1 - 3 - 2013

online

28 - 3 - 2013

Contributors

author

Dag Østvang

• Department of Physics, Norwegian University of Science and Technology, Høgskoleringen 5, N-7491, Trondheim, Norway

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Identifiers

DOI

10.2478/s11534-012-0170-4