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

Details Various applications of multicolour photometry and radial velocity data for multimode $δ$ Scuti stars Various applications of multicolour photometry and radial velocity data for multimode $δ$ Scuti stars

2004-11-03

arxiv.org/abs/astro-ph/0411082v1

Astronomy and Astrophysics

Astrophysics

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

Scientific paper

10.1017/S1743921305009877

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.

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