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The Symbiotic Star H1-36

Published online by Cambridge University Press:  25 April 2016

David A. Allen
David A. Allen*
Affiliation:
Anglo-Australian Observatory
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Extract

Since its discovery by Haro (1952) the star H1-36 has been catalogued as a planetary nebula despite its extremely high-excitation emission-line spectrum (e.g. [Fe VII], [Ne V]) and its imposing, variable infrared excess. Because its optical spectrum resembled those of many symbiotic stars, I have persistently classified H1-36 as such. A meaningful definition of a symbiotic star would necessarily include both the high-excitation emission-line spectrum and the presence of a cool (usually M-type or Mira) giant.

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Publications of the Astronomical Society of Australia , Volume 5 , Issue 2 , 1983 , pp. 211 - 213
Copyright
Copyright © Astronomical Society of Australia 1983

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