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Chemical Composition of the Peculiar Planetary Nebula YM29

Published online by Cambridge University Press:  18 September 2017

K. B. Kwitter ,
G. H. Jacoby  and
D. G. Lawrie
K. B. Kwitter
Affiliation:
Hopkins Observatory, Williams College
G. H. Jacoby
Affiliation:
Kitt Peak National Observatory
D. G. Lawrie
Affiliation:
Ohio State University

Extract

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YM29 is a nearby, filamentary, low surface brightness nebula whose spectrum exhibits lines of both high and low excitation. Johnson and Rubin (1971, Ap. J. 163, 151) observed YM29 as a weak radio source; despite uncertainties as to the thermal nature of the radio spectrum and their lack of a good optical spectrum, they classified YM29 as a peculiar planetary nebula. Based on photographic spectra, Liebowitz (1975, Ap. J. 196, 191) has reported that in YM29 the (N II) lines at λλ 6548, 6584 are several times the strength of Hα.

Type
Abstracts of Contributed Papers
Information
Symposium - International Astronomical Union , Volume 103: Planetary Nebulae , 1983 , pp. 523 - 524
Copyright
Copyright © Reidel 1983