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Independent Distance Determinations to Milky Way Cepheids in Open Clusters: A progress report on four stars

Published online by Cambridge University Press:  12 April 2016

Wolfgang P. Giere ,
Jaymie M. Matthews ,
Jean-Claude Mermilliod  and
Douglas Welch
Wolfgang P. Giere
Affiliation:
Pontificia Universidad Católica de Chile, Santiago, Chile
Jaymie M. Matthews
Affiliation:
University of British Columbia, Vancouver, Canada
Jean-Claude Mermilliod
Affiliation:
Universié de Lausanne, Switzerland
Douglas Welch
Affiliation:
McMaster University, Hamilton, Canada

Abstract

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We have undertaken a programme to calibrate the Cepheid PL relation zero-point by obtaining distances of Cepheids in open clusters and associations via the visual surface brightness technique. Results are now available for four stars (SZ Tau, CF Cas, CV Mon and DL Cas) and others are currently under analysis. Preliminary results suggest the ‘ZAMS-fitting’ distances to the host clusters are systematically smaller than those we derive from Cepheid surface brightnesses.

Type
Part 2. Poster Papers
Information
International Astronomical Union Colloquium , Volume 155 , 1995 , pp. 361 - 362
Copyright
Copyright © Astronomical Society of the Pacific 1995

References

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