New evolved planetary nebulae in the southern hemisphere

¹ Institut für Astronomie der Leopold-Franzens-Universität Innsbruck, Technikerstraße 25, A–6020 Innsbruck, Austria
² Las Campanas Observatory, Carnegie Institution of Washington, Casilla 601, Chile
³ Instituto de Astrofisica de Canarias, E-38200, La Laguna (Tenerife), Spain

Send offprint request to: F. Kerber

Received: 20 October 1997
Accepted: 30 January 1998

Abstract

The major purpose of this paper is to investigate the nature of planetary nebulae (PNe) candidates in the southern hemisphere, taken from an internal list. We present spectroscopic observations and imaging of six PNe identified for the first time. Another candidate turned out to be a galaxy. All observed PNe represent evolved stages, their angular diameter ranging from 15″ to 120″, and exhibit very low surface brightnesses. For three PNe indications of interaction with the interstellar medium (ISM) has been discovered.