Astrophysics and Space Science

, Volume 238, Issue 1, pp 59–62 | Cite as

Similarities and differences between the [WC 2] nucleus of NGC 5189 and the WO star Sand 4

  • Vito Francesco Polcaro
  • Corinne Rossi
  • Roberto Viotti
  • Laura Norci


Long slit spectra of the planetary nebula NGC 5189 with its [WC2] type central object and the G2.4+1.4 wind bubble around the evolved Pop. I WO star Sand 4 were obtained in order to investigate the observable effects of different initial masses in stars with otherwise similar spectra. Our preliminary results of a comparative spectroscopic study of these two objects shows that the chemical composition of the two nebuale is completely different, even though their morphology is most probably quite similar. In addition, the PN appears much more chemically homogeneous. These features are clearly associated with the evolutionary paths of the stars.


Spectroscopic Study Initial Mass Observable Effect Evolutionary Path Central Object 
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

© Kluwer Academic Publishers 1996

Authors and Affiliations

  • Vito Francesco Polcaro
    • 1
  • Corinne Rossi
    • 2
  • Roberto Viotti
    • 1
  • Laura Norci
    • 3
  1. 1.Istituto di Astrofisica SpazialeCNRFrascati RMItaly
  2. 2.Istituto Astronomico dell'Università di Roma “La Sapienza”RomaItaly
  3. 3.Dunsink ObservatoryDublin Institute for Advanced StudiesDublinIreland

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