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Correcting the PL Relation?

Published online by Cambridge University Press:  25 May 2016

C. D. Laney*
Affiliation:
South African Astronomical Observatory, PO Box 9, Observatory, 7935, South Africa

Abstract

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Metal-poor Cepheids do not appear to have smaller radii or cooler temperatures than more metal-rich Cepheids. A correction to the LMC modulus of 0.4 mag, due to metal-poor Cepheids being fainter for their periods, is inconsistent with the data at the 6σ level or greater.

Type
Part 4. Morphology, Kinematics and Dynamics
Copyright
Copyright © Astronomical Society of the Pacific 1999 

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