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Near Infrared Photometry of Compact Planetary Nebulae

Published online by Cambridge University Press:  19 July 2016

M. Peña  and
S. Torres-Peimbert
M. Peña
Affiliation:
Instituto de Astronomía, Universidad Nacional Autónoma de México, México
S. Torres-Peimbert
Affiliation:
Instituto de Astronomía, Universidad Nacional Autónoma de México, México

Abstract

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The study of young planetary nebulae can provide information about the ejection process of the nebular material as well as on nebular evolution and the enrichment of the interstellar medium. The youngest PN are expected to be compact and very dense, they usually show signs of variability and IR excess due to the presence of warm dust which, in some cases, seems to be mixed with the ionized gas.

Type
I. Observational Data on Nebulae
Information
Symposium - International Astronomical Union , Volume 131: Planetary Nebulae , 1989 , pp. 58
Copyright
Copyright © Kluwer 1989