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On the Nature of Planetary Nebulae

Published online by Cambridge University Press:  14 August 2015

I. S. Shklovsky*
Affiliation:
Sternberg Astronomical Institute, Moscow, U.S.S.R.

Extract

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The physical state of the planetary nebulae has been investigated sufficiently well, but the main question of their origin and evolution still remains open.

Type
II. Instability in the Hot Stars of Low Luminosity and in the Novae
Copyright
Copyright © Cambridge University Press 1957 

References

Shklovsky, I. S., A.J.U.S.S.R. 33, 222, 315 (1956).Google Scholar