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The (log g, log Teff)-Diagram, a Fundamental HR-Diagram

Published online by Cambridge University Press:  07 February 2017

E. B. Newell
E. B. Newell*
Affiliation:
Yale University Observatory, U.S.A.

Abstract

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Spectroscopic and photometric parallaxes are based on the assumption that to each point in the relevant region of (g, Teff, a)-space there corresponds a unique mass. The implications of a breakdown in this assumption are discussed briefly and an alternative approach to problems that traditionally have required spectroscopic or photometric parallaxes is presented. This alternative approach involves the use of the (log g, log Teff)-diagram as an HR-diagram.

Type
Part III: Calibration of Spectroscopic Parallaxes
Information
Symposium - International Astronomical Union , Volume 54: Problems of Calibration of Absolute Magnitudes and Temperature of Stars , 1973 , pp. 86 - 89
Copyright
Copyright © Reidel 1973 

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