Application of the Wesselink method to a non-radially oscillating star.
Abstract
The Baade-Wesselink method of determining the radius of a variable star is examined in relation to a nonradially oscillating star. To derive the true radius of the star, the radius derived by the Wesselink method had to be multiplied by a factor which depends upon the l value of the spherical harmonic. For all odd values of l the radius was found to be indeterminate by the method.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- April 1979
- DOI:
- 10.1093/mnras/187.2.217
- Bibcode:
- 1979MNRAS.187..217B
- Keywords:
-
- Astrometry;
- Oscillations;
- Radii;
- Variable Stars;
- Limb Darkening;
- Radial Velocity;
- Spherical Harmonics;
- Stellar Luminosity;
- Astronomy;
- Diameters:Variables