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A new interpretation of the galactic structure from H II regions

Published online by Cambridge University Press:  14 August 2015

Y.P. G. Courtès
Affiliation:
Observatoire de Marseille, Laboratoire d'Astronomie Spatiale, Marseille, France
Y.M. Georgelin
Affiliation:
Observatoire de Marseille, Laboratoire d'Astronomie Spatiale, Marseille, France
G. Monnet
Affiliation:
Observatoire de Marseille, Laboratoire d'Astronomie Spatiale, Marseille, France

Abstract

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From 6000 optical radial velocities of H II regions a new spiral structure (4 arms of pitch angle 20°) is found. The radial velocities of the observed H II regions are the same with the velocities of the H I regions. The kinematics of H II regions is similar to that of Cepheids and B stars.

Type
Part II/Observations of Spiral Structure in Our Galaxy
Copyright
Copyright © Reidel 1970 

References

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