General Relativity and Gravitation

, Volume 5, Issue 5, pp 615–620 | Cite as

The possibility of superluminal sources and their Doppler effect

  • R. Mignani
  • E. Recami
Research Articles


From the Special Relativity Theory, the existence of Superluminal reference-frames and faster-than-light objects can be inferred, when its validity is not arbitrarily confined to subluminal velocities.

The ‘Extended Theory of Relativity’ allows in particular extending the Doppler effect formulae to Superluminal sources. This point is here explored, due to its possible astrophysical interest.

Some other questions are briefly considered, regarding the possibility of ‘radio contact’ between subluminal and Superluminal objects.


Doppler Effect Light Cone Radio Signal Astrophysical Interest Radio Contact 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Plenum Publishing Company Limited 1974

Authors and Affiliations

  • R. Mignani
    • 1
    • 2
  • E. Recami
    • 1
    • 2
  1. 1.Istituto di Fisica Teorica dell'UniversitaCataniaItaly
  2. 2.Sezione di Catania; Centro Siciliano di Fisica Nucleare e S.d.M.Istituto Nazionale di Fisica NucleareCataniaItaly

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