The Galactic Cepheid Period-Luminosity relation from Hipparcos parallaxes and proper motions

Details The Galactic Cepheid Period-Luminosity relation from Hipparcos parallaxes and proper motions The Galactic Cepheid Period-Luminosity relation from Hipparcos parallaxes and proper motions

May 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aspc..310..547h&link_type=abstract

Variable Stars in the Local Group, IAU Colloquium 193, Proceedings of the conference held 6-11 July, 2003 at Christchurch, New Z

Astronomy and Astrophysics

Astronomy

1

Scientific paper

A Bayesian model of Cepheid kinematics has been applied to the Hipparcos parallaxes and proper motions to obtain an independent estimate of the Galactic Cepheid Period-Luminosity relation for visual magnitudes. The resulting estimate includes a slope that differs significantly from those of Magellanic Cloud Cepheids, suggestive of a lack of universality amongst galaxies in Cepheid P-L calibration.

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