The absolute magnitudes of Cepheids and the extragalactic distance scale

Details The absolute magnitudes of Cepheids and the extragalactic distance scale The absolute magnitudes of Cepheids and the extragalactic distance scale

Jan 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998mnras.293l..27f&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 293, p. L27, L28

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11

Cepheid Variables, Stellar Magnitude, Distance, Light Curve, Hubble Constant, Metallicity, Interstellar Extinction, Globular Clusters, Stellar Parallax

Scientific paper

It is pointed out that a Cepheid period-luminosity relation with a zero-point from Hipparcos trigonometrical parallaxes and a consistent reddening system zero-point implies that some recent estimates of H0 based on the Cepheid scale should be increased by about 8 percent. This result avoids using the distance to the LMC as an intermediary point but is not significantly different from the result obtained by Feast and Catchpole (1997) via the LMC. A number of other issues, including metallicity effects on Cepheid distances and reddenings, and the age of metal-poor globular clusters, are discussed.

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