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A Method of Determination of the Temperature of Nuclei of the Planetary Nebulae

Published online by Cambridge University Press:  14 August 2015

G.S. Khromov
G.S. Khromov*
Affiliation:
Sternberg State Astronomical Institute, Moscow, U.S.S.R.

Extract

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I would like to make a few comments on the problem of the determination of the temperatures of nuclei of planetary nebulae.

It can be shown that in a high-excitation planetary nebula two independent Strömgren zones of heavy elements can be found. The first is a He III zone; the second corresponds to a zone of the luminescence of Ne V forbidden lines and originates due to combined absorption by the heavy ions Ne IV, O V and N V. If so, a relatively independent method of the determination of the color temperature of nuclei can be suggested.

Type
Session V – Central Stars
Information
Symposium - International Astronomical Union , Volume 34: Planetary Nebulae , 1968 , pp. 330 - 331
Copyright
Copyright © Reidel 1968 

References

Aller, L. (1960) Bull. astr. Inst. Netherl., 15, 249.Google Scholar
Gurzadian, G.A. (1962) Planetary Nebulae, Moscow.Google Scholar
Zanstra, H. (1960) Bull. astr. Inst. Netherl., 15, 237.Google Scholar