English

Various applications of multicolour photometry and radial velocity data for multimode $\delta$ Scuti stars

Astrophysics 2009-11-10 v1

Abstract

In addition to revealing spherical harmonic degrees, \ell, of excited modes, pulsational amplitudes and phases from multicolour photometry and radial velocity data yield a valuable constraints on stellar atmospheric parameters and on subphotospheric convection. Multiperiodic pulsators are of particular interest because each mode yields independent constraints. We present an analysis of data on twelve modes observed in FG Vir star.

Keywords

Cite

@article{arxiv.astro-ph/0411082,
  title  = {Various applications of multicolour photometry and radial velocity data for multimode $\delta$ Scuti stars},
  author = {J. Daszynska-Daszkiewicz and W. A. Dziembowski and A. A. Pamyatnykh and M. Breger and W. Zima},
  journal= {arXiv preprint arXiv:astro-ph/0411082},
  year   = {2009}
}

Comments

7 pages, 5 figures, in the proceedings of IAU Symposium 224: "The A-star Puzzle", eds. J. Zverko, W. W. Weiss, J. Ziznowsky, S. J. Adelman