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A Far-Ultraviolet Flux Difference Between Hyades and Pleiades Stars

Published online by Cambridge University Press:  07 February 2017

R. E. Schild
R. E. Schild*
Affiliation:
Smithsonian Astrophysical Observatory, Cambridge, Mass. 02138, U.S.A.

Abstract

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Four ultraviolet fluxes measured in U2 (centered at λeff 2300 Å) by the Celescope experiment aboard OAO 2, reveal an important flux difference between Pleiades and Hyades stars. Available blanketed stellar models show that the difference is too large to be understood as a blocking effect for admissible metal overabundance in Hyades stars. Known rotation and presence of Ap and Am stars in the Hyades and Pleiades apparently cannot account for the discrepancy.

Type
Part II: Absolute Magnitudes from Galactic Clusters and Associations
Information
Symposium - International Astronomical Union , Volume 54: Problems of Calibration of Absolute Magnitudes and Temperature of Stars , 1973 , pp. 31 - 35
Copyright
Copyright © Reidel 1973 

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