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Is it Possible to Derive the Position of a Star in the HR Diagram from Multicolor Photometry?

Published online by Cambridge University Press:  14 August 2015

M.N. Perrin  and
G. Cayrel de Strobel
M.N. Perrin
Affiliation:
Paris-Meudon Observatory
G. Cayrel de Strobel
Affiliation:
Paris-Meudon Observatory

Extract

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In the preceeding paper of this Symposium by Cayrel and Perrin (1978), HR diagrams have been discussed, in which the [Fe/H] ratio and effective temperatures are derived from model atmosphere analyses and absolute bolometric magnitude from apparent visual magnitude, parallax and bolometric correction. The use of parallaxes imposes a very severe restriction on the number of objects, as parallaxes of at least 0″.050 are needed to have an absolute magnitude good to ±0m.4.

Type
Part VII: Theoretical Papers and Summary
Information
Symposium - International Astronomical Union , Volume 80: The HR Diagram , 1978 , pp. 319 - 322
Copyright
Copyright © Reidel 1978 

References

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