The Cepheid Distance Scale: Recent Progress In Fundamental Techniques
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Date
2009-09
Authors
Barnes, T. G.
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Abstract
This review examines progress on the Pop I, fundamental-mode Cepheid distance scale with emphasis on recent developments in geometric and quasi-geometric techniques for Cepheid distance determination. Specifically I examine the surface brightness method, interferometric pulsation method, and trigonometric measurements. The three techniques are found to be in excellent agreement for distance measures in the Galaxy. The velocity p-factor is of crucial importance in the first two of these methods. A comparison of recent determinations of the p-factor for Cepheids demonstrates that observational measures of p and theoretical predictions agree within their uncertainties for Galactic Cepheids.
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cepheids, stars: distances, period-luminosity relations, base-line interferometry, prototype optical, interferometer, near-infrared interferometry, high-resolution, spectroscopy, visual surface brightness, stellar angular diameters, hubble-space-telescope, baade-wesselink method, classical cepheids, astronomy & astrophysics
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Citation
Thomas G. Barnes III. AIP Conference Proceedings 1170, 3 (Sep., 2009); doi: 10.1063/1.3246527