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Distance Determination with Cepheid Variables

  • Nial R. Tanvir
Chapter
Part of the Astrophysics and Space Science Library book series (ASSL, volume 237)

Abstract

Cepheid variables have long formed the backbone of the extra-galactic distance scale. The HST has greatly increased the range of Cepheid studies, making many more galaxies available for calibrating secondary distance indicators. This makes the calibration of the Cepheid period-luminosity relations, and investigations of systematic uncertainties, of crucial importance. We show that four routes to calibrating the V and I band PL relations (the most relevant for HST studies) give consistent results within their uncertainties. The metallicity sensitivity of Cepheid properties remains an important concern, but recent studies are beginning to provide useful quantitative constraints.

Keywords

Distance Modulus Large MAGELLANIC Cloud Distance Indicator Distance Determination Instability Strip 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media Dordrecht 1999

Authors and Affiliations

  • Nial R. Tanvir
    • 1
  1. 1.Institute of AstronomyUniversity of CambridgeCambridgeEngland

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