Free Access
Issue
Astron. Astrophys. Suppl. Ser.
Volume 119, Number 3, November I 1996
Page(s) 423 - 430
DOI https://doi.org/10.1051/aas:1996252
Published online 15 November 1996
Spectroscopy and imaging of newly discovered planetary nebulae DOI: 10.1051/aas:1996252

Astronomy and Astrophysics Supplement Series, Vol. 119, November I 1996, 423-430

Spectroscopy and imaging of newly discovered planetary nebulae

F. Kerber, G. Lercher and R. Weinberger
Send offprint requests to: F. Kerber, florian.kerber@uibk.ac.at

Institut für Astronomie der Leopold-Franzens-Universität Innsbruck, Technikerstraße 25, A--6020 Innsbruck, Austria
http://ast7.uibk.ac.at

Received January 3; accepted March 22, 1996

Abstract:

The major purpose of this paper was to prove or disprove the nature of planetary nebula (PN) candidates in the northern hemisphere, taken from an internal list. We present spectroscopic observations and imaging of fifteen PNe, twelve of them identified for the first time. Another two candidates turned out to be an emission--line galaxy and an HII region. All observed PNe represent evolved stages, their angular diameter ranging from 8 to 90, and exhibit very low surface brightnesses. The three largest and faintest nebulae each host a central star of magnitude 18 to 20.

Key words: planetary nebulae: general


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