Optical Classification of IRAS Post-AGB Candidates

Bibcode
1998Ap&SS.263..283S
DOI
10.1023/A:1002155521697
Suárez, O.; Manteiga, M.; Ulla, A.; García-Lario, P.; Manchado, A.
Bibliographical reference

Astrophysics and Space Science, v. 263, Issue 1/4, p. 283-286 (1998).

Advertised on:
6
1998
Journal
Astrophysics and Space Science
Number of authors
5
IAC number of authors
1
Citations
0
Refereed citations
0
Description
We present the first results of a survey carried out on a sample of optically bright post-AGB candidates selected from the IRAS Point Source Catalogue, many of them previously unidentified in the literature. The selection criteria are based on their characteristic far infrared colours. Low resolution spectroscopy of more than 150 sources has been obtained during 6 years. Our preliminary analysis confirms that most of the candidates observed are true post-AGB stars, some of them still strongly reddened. Some young planetary nebulae, a few young stellar objects and active galactic nuclei are also present in the sample. The distribution of post-AGB stars with different spectral types in the IRAS two-colour diagram and its evolutionary implications are briefly discussed.
Type
Non-refereed

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