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High-Dispersion Spectroscopy and the Interpretation of Stellar Atmospheres

Published online by Cambridge University Press:  25 April 2016

L. H. Aller*
Affiliation:
University of California, Los Angeles

Extract

The atmosphere of a star presents a real challenge to the astronomer or physicist. We can observe but the thinnest skin of the star; yet from the information obtained therefrom we must deduce the star’s temperature, chemical composition, its rotation (if any), the state of agitation in its outer layers, and eventually the surface gravity, total luminosity, mass, and evolutionary stage.

Type
Invited Papers
Copyright
Copyright © Astronomical Society of Australia 1969

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References

1 Some earlier results are described by Aller, L. H. and Ross, J. E., ‘The Magnetic and Related Stars’, p. 339, ed. Cameron, R. C., Mono Book Co., Baltimore 1967. The papers by Mrs.Peters, P., Ross, J. E. and Zimmerman, E. on ι Herculis, ι Cor Bor, and ι Herculis respectively are currently in press in the Astrophyskal Journal.Google Scholar
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5 For a discussion of this topic see Aller, L. H. and Liller, W. in ‘Stars and Stellar SystemsVII Nebulae & Interstellar Matter’, pp. 546–55, ed. Middlehurst, B., Univ. of Chicago Press, Chicago 1968.Google Scholar
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