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Detection of Evolution of the Nucleus of NGC 2392

Published online by Cambridge University Press:  07 August 2017

Sara R. Heap
Sara R. Heap*
Affiliation:
Laboratory for Astronomy and Solar Physics, Code 681, Goddard Space Flight Center, Greenbelt MD 20771, U.S.A

Abstract

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Ultraviolet spectra taken with the IUE satellite indicate that the central star of the planetary nebula, NGC 2392, has declined in brightness by 7% per decade. We interpret this fading as a consequence of evolution toward higher temperature. With this interpretation, the rate of optical fading suggests that the stellar mass is 0.73 M ⊙.

Type
V. Planetary Nebulae Connection: Evolution to White Dwarfs
Information
Symposium - International Astronomical Union , Volume 155: Planetary Nebulae , 1993 , pp. 484
Copyright
Copyright © Kluwer 1993 

References

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