Röntgenkristallographie von Hydrocerussit

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Hubble Space Telescope observations of magellanic cloud planetary nebulae: Stellar winds

Narrow-band [OIII] 500.7 nm images and ultraviolet spectrophotometry are obtained for 20 planetary nebulae (PNe) in the Magellanic Clouds using the Hubble Space Telescope (HST). Four objects show P Cygni-like features in the ultraviolet HST data, and/or broad emission complexes near the HeII 468.6 nm and CIV 580.6 nm lines in ground-based spectra. All objects are of excitation class four or lower, and all are compact and dense compared to other objects in the sample. The likelihood of detecting ultraviolet P Cygni-like profiles in future HST spectroscopy of other objects is discussed.