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Publications by S. M. Viegas

Gas Temperature and Excitation Classes in Planetary Nebulae

Astronomy and Astrophysics
AstrophysicsAstronomyPlanetary ScienceSpace
2002English

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Electron Excitation of Heavy Elements in Planetary Nebulae

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Atomic Processes in Planetary Nebulae

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34. Interstellar Matter and Planetary Nebulae

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Collimated Outflows in Planetary Nebulae

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New Candidate Planetary Nebulae in the IPHAS Survey: The Case of Planetary Nebulae With ISM Interaction

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