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Ground Based and Extraterrestrial Observations of Stellar Flux

Published online by Cambridge University Press:  07 February 2017

A. D. Code
A. D. Code*
Affiliation:
Washburn Observatory, University of Wisconsin, Madison, Wis., U.S.A.

Abstract

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The significance of recent improvements made in the absolute monochromatic flux measurements of the Sun and Vega are discussed with a special emphasis on the absolute calibration of the V-magnitude of stars. The difficulties relating to the determination of vacuum ultraviolet fluxes are outlined and the improvements that can be achieved using synchroton radiation as the fundamental laboratory source are presented. Colour indices derived from OAO-2 observation are given for about 80 early type stars and the (1700 – V) colour is discussed in terms of interstellar reddening and sensitivity to effective temperature. Basic problems requiring further investigation are finally outlined.

Type
Part V: Ground Based and Extraterrestrial Observations of Stellar Flux
Information
Symposium - International Astronomical Union , Volume 54: Problems of Calibration of Absolute Magnitudes and Temperature of Stars , 1973 , pp. 131 - 145
Copyright
Copyright © Reidel 1973 

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