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Sub-luminous blue stars and white dwarfs
Published online by Cambridge University Press: 14 August 2015
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Sub-luminous stars of high temperature show a wide variety of spectra and physical properties. Vorontsov-Velyaminov has called this region of the HR diagram the “blue-white sequence”. I wish to discuss the fainter members of this class. The growth of knowledge of colors and spectra has been rapid compared to that of the luminosities, and unfortunately only rough location in the HR diagram is yet possible. Figure 1 shows the general location and subdivision of sub-luminous stars. I shall discuss:
(1) Old novae.
(2) Horizontal-branch stars.
(3) Hot subdwarfs.
(4) White dwarfs.
- Type
- I. The Observational Data on the Hertzsprung-Russell Diagram
- Information
- Symposium - International Astronomical Union , Volume 10: The Hertzsprung-Russell Diagram , 1959 , pp. 33 - 37
- Copyright
- Copyright © CNRS 1959
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