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Infrared observations of candidate post-AGB transition objects

Published online by Cambridge University Press:  25 May 2016

G.C. Van de Steene  and
P.A.M. Van Hoof
G.C. Van de Steene
Affiliation:
1European Southern Observatory
P.A.M. Van Hoof
Affiliation:
2Kapteyn Institute Groningen

Extract

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In our search for new obscured PN, candidates were selected from the IRAS PSC based on their infrared colors that are typical for PN. These PN candidates were observed in the radio. On average 20 % of the objects were detected (Van de Steene & Pottasch: 1993, A&A 274, 895; 1995, A&A 299, 238). Optical spectroscopy showed that the PN candidates detected in the radio have emission line spectra typical of PN (Van de Steene et al. 1996a A&AS 118, 243; 1996b A&AS in press).

Type
V. From AGB to Planetary Nebulae
Information
Symposium - International Astronomical Union , Volume 180: Planetary Nebulae , 1997 , pp. 372
Copyright
Copyright © Kluwer 1997