International Ultraviolet Explorer (IUE) observations of planetary nebulae: Nebular continuum and mass loss from central stars

Astronomy and Astrophysics – Astronomy

Scientific paper

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Iue, Planetary Nebulae, Stellar Mass Ejection, Stellar Winds, Atomic Spectra, Continuous Spectra, Emission Spectra, Interstellar Gas, Interstellar Matter, Stellar Envelopes, Ultraviolet Astronomy

Scientific paper

International Ultraviolet Explorer low resolution spectra of eight planetary nebulae from low to fairly high excitation were taken. A nebular continuum was measured in NGC 7662 and shown to be essentially of atomic origin. A significant stellar wind from the nuclei of most of the planetaries was detected with velocities around 1000 - 3000 km/sec. A crude estimate of the associated mass loss is given.

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