The P Cygni Profile and Friends

  • Keith Robinson
Part of the Patrick Moore’s Practical Astronomy Series book series (PATRICKMOORE)


If there’s one spectral line profile which most amateur astronomers have heard of it’s the P Cygni profile. P Cygni itself is a class B star lying in the plain of the northern MilkyWay close to the second magnitude star Gamma Cygni. P Cygni profiles are all to do with stellar winds and they come as we shall see in various interesting guises.


Emission Line Absorption Line Accretion Disk Absorption Component Stellar Wind 


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Copyright information

© Springer 2007

Authors and Affiliations

  • Keith Robinson
    • 1
  1. 1.Royal Astronomical Society, UKLancasterUK

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