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The distribution function for a new sample of OH/IR stars

Published online by Cambridge University Press:  07 August 2017

Peter Te Lintel Hekkert  and
Herwig Dejonghe
Peter Te Lintel Hekkert
Affiliation:
Mt Stromlo and Siding Spring Observatories — Sterrenkundig Observatorium
Herwig Dejonghe
Affiliation:
Mt Stromlo and Siding Spring Observatories — Sterrenkundig Observatorium

Abstract

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The new IRAS database of OH/IR stars (ages between 5 and 10 Gyr) show clearly different population characteristics from those used by Baud (1981) for his sample of OH/IR stars (ages under 1 Gyr) obtained by means of “blind” surveys. For the IRAS group the velocity dispersions are much higher and the z-scaleheight is larger than for Baud's sample.

Thus OH/IR stars span a range of ages and kinematical properties all the way from the youngest to the oldest stellar galactic population.

Type
Poster Papers
Information
Symposium - International Astronomical Union , Volume 149: The Stellar populations of Galaxies , 1992 , pp. 448
Copyright
Copyright © Kluwer 

References

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