Astrophysics and Space Science

, Volume 15, Issue 3, pp 395–400 | Cite as

On the mass and distance of the Quasi-Stellar Object 3C 273

  • D. F. Falla
  • A. Evans


For the QSO 3C 273 we derive, on the basis of two different theoretical models, expressions for a lower limit to the mass of the QSO, as a function of its distance. We conclude that an appreciable gravitational redshift component is consistent with the observational data only if the QSO mass is at least Galactic in magnitude. The setting of an independent upper limit to the QSO massM≲1010M could indicate that the QSO redshift is predominantly cosmological in nature.


Theoretical Model Lower Limit Observational Data Gravitational Redshift Redshift Component 
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Copyright information

© D. Reidel Publishing Company 1972

Authors and Affiliations

  • D. F. Falla
    • 1
  • A. Evans
    • 1
  1. 1.Dept. of PhysicsThe University College of WalesAberystwythWales

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