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The Galactic Distribution of O-Rich AGB Stars

Published online by Cambridge University Press:  07 August 2017

B.W. Jiang
Affiliation:
Beijing Observatory, Academia Sinica, Beijing, 100080, China
J.Y. Hu
Affiliation:
Beijing Observatory, Academia Sinica, Beijing, 100080, China

Extract

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In 1976 Georgelin et al.(1976) combined optical and radio observational data of HII regions to study the structure of our Galaxy. The distance of each HII region can be obtained from its radio continuum flux caused by free-free emission and the flux of the Balmer lines with high accuracy. The results clearly show three arms and are used to draw the spiral structure of our Galaxy. It is commonly accepted now.

Type
IV. Planetary Nebulae Connection: Evolution from the AGB
Copyright
Copyright © Kluwer 1993 

References

Georgelin, Y.M., Georgelin, Y.P., Sivan, J.P.,1976,A&A,49,57.Google Scholar
Habing, H.J.,1988, A&A,200,40.Google Scholar
van der Veen, W.E.C.J., Habing, H.J.,1988,A&A, 194,125.Google Scholar