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Rotation Curve and Metallicity of the Outer Disc from Cepheids

Published online by Cambridge University Press:  12 April 2016

F. Pont ,
D. Queloz ,
M. Mayor  and
P. Bratschi
F. Pont
Affiliation:
Geneva Observatory, Sauverny, Switzerland
D. Queloz
Affiliation:
Geneva Observatory, Sauverny, Switzerland
M. Mayor
Affiliation:
Geneva Observatory, Sauverny, Switzerland
P. Bratschi
Affiliation:
Geneva Observatory, Sauverny, Switzerland

Abstract

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A group of faint, remote Cepheids in the outer disc of the Galaxy has been observed in spectroscopy and photometry. These Cepheids are used as tracers to measure the rotation curve of the disc beyond R=11 kpc, and to study the metallicity gradient in the outer disc.

Type
Part 1. The Scientific Programme
Information
International Astronomical Union Colloquium , Volume 155: Astrophysical Applications of Stellar Pulsation , 1995 , pp. 194 - 195
Copyright
Copyright © Astronomical Society of the Pacific 1995

References

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