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OH/IR Stars Near the Galactic Centre

Published online by Cambridge University Press:  12 April 2016

B. Baud
B. Baud*
Affiliation:
Sterrewacht, Huygens Laboratorium, Leiden, The Netherlands

Abstract

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Observations at 1612 MHz around the Galactic Centre have revealed the existence of 43 OH/IR stars. Sources within 6° longitude from the Galactic Centre appear to be associated with the central parts of the Galaxy. They have a large velocity dispersion and a mean radial velocity of 0 km s−1, indicating that there is no net rotation around the Centre. Within 2° from the Centre there is a strong relative increase in the number of sources with a velocity separation between the two emission peaks of less than 30 km s−1. This is discussed in terms of a possible interaction between the circumstellar shell and the ambient medium.

Type
Part III: Evolved Stars
Information
International Astronomical Union Colloquium , Volume 42: The Interaction of Variable Stars with their Environment , 1977 , pp. 438 - 445
Copyright
Copyright © Veröff. Der Remeis-Sterwarte 1977

References

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