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Gould’s Belt

Published online by Cambridge University Press:  30 March 2016

P. O. Lindblad
P. O. Lindblad*
Affiliation:
Stockholm Observatory, Sweden

Extract

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The zone of bright stars inclined 20° to the galactic plane, pointed out by John Herschel (1847) and by Gould (1874,1879), is generally referred to as Gould’s Belt. This General Assembly is well timed. With the splendour of the centre of the Milky Way in the zenith in the early hours of the night anyone who comes out of the city-lights of Sydney can try to convince himself of the reality of this phenomenon.

Shapley and Cannon (1922, 1924) showed that the concentration towards Gould’s Belt is very pronounced for the brighter B. stars, while the fainter ones are highly concentrated towards the galactic plane. Their results indicated the radius of this local system to be of the order of 500 pc. The motions of the B. stars brighter than a magnitude of about 5m.5 are characterized by the K-effect, which thus seems to be a property of this local Gould Belt system.

Type
Joint Discussions
Information
Highlights of Astronomy , Volume 3: Highlights of Astronomy. As presented at the XVth General Assembly of the IAU, 1973 , 1974 , pp. 381 - 384
Copyright
Copyright © Reidel 1974

References

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