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New and misclassified Planetary Nebulae

Published online by Cambridge University Press:  25 May 2016

L. Kohoutek*
Affiliation:
Hamburg Observatory, 21029 Hamburg, Germany

Extract

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This fifth supplement to the ‘Catalogue of Galactic Planetary Nebulae’ (CGPN - Perek, Kohoutek, 1967) covers the period 1991-1994 and contains four lists. In Table 1 we present 86 new PN, their PK designations, names and equatorial coordinates together with the references of their discovery as PN (!). The summary of the main properties of a PN and of a central star (Paper III) was used. We believe that the mean values given there are still valid, although some ‘limits’ (in parentheses) of the data have to be changed. It concerns mainly PN with very young central stars (stellar temperature down to ≈ 20000 K, gravity down to log g ≈ 3-4, variable spectrum) as well as old PN (diameter of the main nebular body up to ≈ 2.5 pc). Besides, large exp. velocity up to ≈ 300 km/s was measured for the nebular outer structure.

Type
I. Introduction
Copyright
Copyright © Kluwer 1997 

References

Acker, A., Marcout, J., Ochsenbein, F., Stenholm, B., Tylenda, R., Schohn, C., 1992, The Strasbourg-ESO Catalogue of Galactic Planetary Nebulae, European Southern Observatory.(SECGPN).Google Scholar
Kohoutek, L., 1978, IAU Symp. No.76 (ed.Terzian, Y.), p.47. (Paper I).Google Scholar
Kohoutek, L., 1983, IAU Symp. No.103 (ed.Flower, D.R.), p. 17. (Paper II).Google Scholar
Kohoutek, L., 1989, IAU Symp. No.131 (ed.Torres-Peimbert, S.), p.29. (Paper III).Google Scholar
Kohoutek, L., 1993, IAU Symp. No.155 (eds. Weinberger, R., Acker, A.) - poster; Astron. Nachr. 315 (1994), 63. (Paper IV).Google Scholar
Perek, L., Kohoutek, L., 1967, Catalogue of Galactic Planetary Nebulae, Academia Praha.(CGPN).Google Scholar