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Title: Possible proto-planetary nebulae
Authors: Parthasarathy, M
Keywords: F Stars;Planetary Nebulae;Stellar Evolution;Supergiant Stars;Asymptotic Giant Branch Stars;Emission Spectra;G Stars;Hertzsprung-Russell Diagram;Infrared Astronomy Satellite;Stellar Luminosity
Issue Date: 1989
Publisher: Cambridge University Press
Citation: Johnson, H R and Zuckerman, B., eds., Evolution of peculiar red giant stars., Proceedings of the 106th Colloquium of the International Astronomical Union held in Bloomington, Indiana U.S.A. 27 - 29 July 1988,
Series/Report no.: International Astronomical Union Colloquium; No.106
Abstract: IRAS data for high-galactic-latitude F supergiants, a few luminous F-G stars, and a few peculiar (forbidden) emission-line stars reveal they have dust shells with characteristics similar to those observed in planetary nebulas. The objects appear to have experienced severe mass loss in the recent past on the AGB. These stars are most likely post-AGB stars or evolving from the tip of AGB towards the left in the H-R diagram and may be described as possible protoplanetary nebulas. From the IRAS data, ten additional possible protoplanetary nebulas are identified.
Description: Restricted Access
ISBN: 0-521-36617-8
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Appears in Collections:IIAP Publications

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