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Cepheid Distance to the Virgo Cluster

Published online by Cambridge University Press:  12 April 2016

Anwesh Mazumdar  and
D. Narasimha
Anwesh Mazumdar
Affiliation:
Tata Institute of Fundamental Research, Mumbai 400005, India
D. Narasimha
Affiliation:
Tata Institute of Fundamental Research, Mumbai 400005, India

Abstract

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A reanalysis of the HST data on Cepheids in the Virgo cluster spiral M100 is presented, based on our study of the Galactic Cepheids. A distance modulus of 31.49 mag is derived, which is higher than the HST Key Project value of 31.04 mag obtained from the same data earlier (Ferrarese et al. 1996). The increase in the distance is caused by nearly equal contributions from a different calibration of the slope and the zero point of the period–luminosity relation and a correction for the flux-limited incompleteness bias.

Type
Part 3. Cepheids, RR Lyrae Stars, Distance Scales
Information
International Astronomical Union Colloquium , Volume 176: The Impact of Large-Scale Surveys on Pulsating Star Research , 2000 , pp. 229 - 230
Copyright
Copyright © Astronomical Society of the Pacific 2000

References

Ferrarese, L., Freedman, W.L., Hill, R.J., et al. 1996, ApJ, 464, 568 Google Scholar