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The Baade-Wesselink p-factor of Cepheids in the Gaia area

Published online by Cambridge University Press:  07 March 2018

Nicolas Nardetto
Nicolas Nardetto*
Affiliation:
Laboratoire Lagrange, UMR 7293, Université de Nice Sophia-Antipolis, CNRS, Observatoire de la Côte d'Azur, France email: [email protected]
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Abstract

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With the next Gaia release (expected in April 2018), the distance of about 300 Galactic Cepheids will be derived with a precision of better than 3%. These distances will be used first to constrain the Cepheid period-luminosity relation, but they will also bring strong constrains on the physics of Cepheids, through the projection factor, a physical quantity used in the inverse Baade-Wesselink (BW) method.

Keywords

Cepheidsprojection factorGaiadistances
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S330: Astrometry and Astrophysics in the Gaia sky , April 2017 , pp. 335 - 336
Copyright
Copyright © International Astronomical Union 2018 

References

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