Possible proto-planetary nebulae

Parthasarathy, M

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dc.contributor.author	Parthasarathy, M
dc.date.accessioned	2009-05-19T16:15:12Z
dc.date.available	2009-05-19T16:15:12Z
dc.date.issued	1989
dc.identifier.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,	en
dc.identifier.isbn	0-521-36617-8
dc.identifier.uri	http://hdl.handle.net/2248/4473
dc.description	Restricted Access
dc.description.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.	en
dc.language.iso	en	en
dc.publisher	Cambridge University Press	en
dc.relation.ispartofseries	International Astronomical Union Colloquium; No.106
dc.rights	© Cambridge University Press
dc.subject	F Stars	en
dc.subject	Planetary Nebulae	en
dc.subject	Stellar Evolution	en
dc.subject	Supergiant Stars	en
dc.subject	Asymptotic Giant Branch Stars	en
dc.subject	Emission Spectra	en
dc.subject	G Stars	en
dc.subject	Hertzsprung-Russell Diagram	en
dc.subject	Infrared Astronomy Satellite	en
dc.subject	Stellar Luminosity	en
dc.title	Possible proto-planetary nebulae	en
dc.type	Article	en