Astrophysics and Space Science

, Volume 43, Issue 1, pp 83–89 | Cite as

The radio sources and their exciting stars in Cygnus X

  • C. Goudis


Physical parameters (density, mass of the ionized gas, emission measure, excitation parameter) of various thermal sources of the Cygnus X complex were derived by adopting a simple spherical model. The limitations of the excitation parameter-spectral class relationship are discussed and because of them no reliable conclusion can be drawn about the nature of their exciting stars. Physical characteristics of two non-thermal sources were also derived on the assumption they are SNR.


Physical Characteristic Physical Parameter Radio Source Spherical Model Emission Measure 
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

© D. Reidel Publishing Company 1976

Authors and Affiliations

  • C. Goudis
    • 1
  1. 1.Department of AstronomyUniversity of ManchesterEngland

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