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

Astronomy and Astrophysics – Astrophysics

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Uv Spectroscopy, Stellar Winds, Magellanic Clouds, Planetary Nebula Nuclei

Scientific paper

Narrow-band [O III] 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 He II 468.6 nm and C IV 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.

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