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The galactic distribution of OH/IR stars

Published online by Cambridge University Press:  14 August 2015

B. Baud ,
H. J. Habing  and
J. H. Oort
B. Baud
Affiliation:
Sterrewacht Leiden, Netherlands
H. J. Habing
Affiliation:
Sterrewacht Leiden, Netherlands
J. H. Oort
Affiliation:
Sterrewacht Leiden, Netherlands

Extract

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Through systematic surveys (Johansson et al., Caswell and Haynes, Bowers, Baud, Caswell et al.) some 200 OH masers have been detected that are presumably associated with long period variables of very late spectral type (>M5). Tentatively these stars will be called “OH/IR stars”. They are characterized by their strong emission in the 1612 MHz line which shows a double peak due to the expansion of the shell surrounding these stars. The velocity difference ΔV between the peaks is generally between 10 and 50 km s−1.

Type
II. THE DISK COMPONENT
Information
Symposium - International Astronomical Union , Volume 84: The Large-Scale Characteristics of the Galaxy , 1979 , pp. 29 - 34
Copyright
Copyright © Reidel 1979 

References

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