Constructing a Cepheid Period p-Factor Relation from Static Model Stellar Atmospheres

Hilding R. Neilson; Chow-Choong Ngeow; John B. Lester

Constructing a Cepheid Period p-Factor Relation from Static Model Stellar Atmospheres

Solar and Stellar Astrophysics 2012-01-05 v1

Authors: Hilding R. Neilson , Chow-Choong Ngeow , John B. Lester

Abstract

One of the largest uncertainties for using the Baade-Wesselink method to measure Cepheid distances is the value of the projection factor (p-factor). However, p-factors measured using the IRSB technique and from hydrodynamic models disagree. In this work, we compute spherically-symmetric static model stellar atmospheres and predict a period p-factor relation.

Cite

@article{arxiv.1201.0802,
  title  = {Constructing a Cepheid Period p-Factor Relation from Static Model Stellar Atmospheres},
  author = {Hilding R. Neilson and Chow-Choong Ngeow and John B. Lester},
  journal= {arXiv preprint arXiv:1201.0802},
  year   = {2012}
}

Comments

2 pages, 1 figure, To be published in Astrophysics and Space Science Proceedings series (ASSP). Proceedings of the "20th Stellar Pulsation Conference Series: Impact of new instrumentation and new insights in stellar pulsations", 5-9 September 2011, Granada, Spain

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