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1. Uniformity Despite Diversity: PN Expansion Velocities in the Local Group.

Author

Richer, Michael G. and López, José Alberto

Subjects
*PLANETARY nebulae, *STARS, *SCINTILLATION of stars, *ASTRONOMICAL photometry, *GALAXIES, *ASTRONOMY
Abstract

The article discusses the results of the survey on the expansion velocities of planetary nebula. For the brightness of the stars, asymmetries in the line profile are clear. The mean expansion velocities are remarkably uniform despite the diversity in planetary nebula progenitors in different galaxies.

Published
2005
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