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A New Way to Resolve Cepheid Binaries1

Published online by Cambridge University Press:  12 April 2016

Nancy Remage Evans  and
Derck Massa
Nancy Remage Evans
Affiliation:
Smithsonian Astrophysical Observatory, Cambridge, MA, USA
Derck Massa
Affiliation:
Emergent IT, MD, USA

Abstract

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We have measured the centroid shift of low resolution HST FOC spectra as the dominant star changes from the Cepheid to the hot companion. With this approach we have resolved the AW Per system and marginally resolved the U Aql system.

Type
Part 1.2. Pulsations in Close Binaries
Information
International Astronomical Union Colloquium , Volume 185: Radial and Nonradial Pulsations as Probes of Stellar Physics , 2002 , pp. 106 - 109
Copyright
Copyright © Astronomical Society of the Pacific 2002

Footnotes

1

Based on observations made with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc. under NASA Contract No. NASA-26555

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