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Echelle Studies on the Symmetrical Stratified Planetary Nebula NGC 3918
Published online by Cambridge University Press: 22 September 2016
Extract
Coudé échelle studies of the symmetrical planetary southern nebula NGC 3918 at a resolution of 20 km/sec have shown a high degree of stratification of velocity of expansion with ionisation. The greatest velocity of expansion, 28 km/sec is observed in the [Mgl] line at 4751 Å
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- Session III: Physical Processes
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- Copyright © Reidel 1978
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