On the Theoretical Period-Radius Relation of Classical Cepheids
Open Access
- 10 April 1998
- journal article
- research article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 497 (1) , L43-L46
- https://doi.org/10.1086/311270
Abstract
We present the results of a comprehensive theoretical investigation of the period-radius relation of classical Cepheids based on new sequences of full-amplitude, nonlinear, convective models constructed by adopting a wide range of both stellar masses and chemical compositions. In the period range 0.9 ≤ log P ≤ 1.8, very good agreement is found between theoretical predictions and current available data, whereas outside this range, at both shorter and longer periods, nonlinear radii attain intermediate values between empirical relations based on different Baade-Wesselink methods and photometric bandpasses.Keywords
This publication has 22 references indexed in Scilit:
- Cepheids in NGC 1866: a test for pulsational modelsMonthly Notices of the Royal Astronomical Society, 1997
- The Effect of Velocity Gradients on Cepheid Spectra: ModelsThe Astrophysical Journal, 1996
- On the application of the Baade-Wesselink method to RR Lyrae starsThe Astrophysical Journal, 1994
- Pulsation and stability of RR Lyrae stars. 1: Instability stripThe Astrophysical Journal Supplement Series, 1994
- Theoretical models of Cepheid variables and their BVI(c) colors and magnitudesThe Astrophysical Journal Supplement Series, 1993
- On the instability strip of the Cepheid starsThe Astrophysical Journal, 1992
- The evolution through H and He burning of Galactic cluster starsThe Astrophysical Journal Supplement Series, 1992
- The radii and temperatures of classical CepheidsThe Astrophysical Journal, 1978
- Stellar Angular Diameters and Visual Surface Brightness -- I LATE SPECTRAL TYPESMonthly Notices of the Royal Astronomical Society, 1976
- Über eine Möglichkeit, die Pulsationstheorie der δ Cephei‐Veränderlichen zu prüfenAstronomische Nachrichten, 1926