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Photometric Observations of the Central Stars of Planetary Nebulae

Published online by Cambridge University Press:  14 August 2015

William Liller  and
Cheng-Yuan Shao
William Liller
Affiliation:
Harvard College Observatory, Cambridge, Mass., U.S.A.
Cheng-Yuan Shao
Affiliation:
Harvard College Observatory, Cambridge, Mass., U.S.A.

Extract

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Currently at Harvard, we are engaged in a program for measuring multi-color magnitudes of the central stars of planetary nebulae. We plan to determine magnitudes of all favourable planetaries having central stars brighter than 16th photographic magnitude. The results, when completed, will give us improved information on (1) the amount of interstellar extinction for the individual objects, (2) the luminosities and colors of the central stars, (3) interstellar reddening corrections for spectrophotometric studies, and (4) the existence of variability among the central stars.

Type
Session V – Central Stars
Information
Symposium - International Astronomical Union , Volume 34: Planetary Nebulae , 1968 , pp. 320 - 323
Copyright
Copyright © Reidel 1968 

References

Abell, G.O. (1966) Astrophys. J., 144, 259.CrossRefGoogle Scholar
Kohoutek, L. (1964) Bull. astr. Inst. Csl., 15, 161.Google Scholar
Kohoutek, L. (1966) Bull. astr. Inst. Csl., 18, 103.Google Scholar
Perek, L., Kohoutek, L. (1967) Catalogue of Galactic Planetary Nebulae, Academia, Prague.Google Scholar