Department of Physics and Astronomy: Publications and Other Research
Date of this Version
4-2010
Abstract
A metallicity of [Fe/H] = –0.05 to –0.40 was derived from four spectra of the peculiar beat Cepheid V371 Per. This conflicts with previous estimates ranging from –0.7 to –1.0 based on the period ratio. It is suggested that the discrepancy may be resolved by assuming near solar metallicity but a low mass. This is in accord with a suggestion by Sandage and Tammann that the AHB3 (or BL Her) stars are Population I analogs of short-period type II Cepheids. Further pulsational modeling is needed to clarify the status of this star and to understand the AHB3 stars.
Comments
Published in PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 123:381–383, 2011 April. Copyright © 2011 The Astronomical Society of the Pacific; published by University of Chicago Press. Used by permission.