An Eulerian approach for the computation of oscillation mode visibility

Details An Eulerian approach for the computation of oscillation mode visibility An Eulerian approach for the computation of oscillation mode visibility

Jul 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...287..535g&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 287, no. 2, p. 535-542

Statistics

Computation

3

Computational Astrophysics, Euler Equations Of Motion, Hydrodynamics, Modes, Radiative Transfer, Stellar Oscillations, Stellar Radiation, Visibility, Geometry, Lagrange Coordinates, Numerical Analysis, Perturbation, Stellar Atmospheres, Temperature Effects, Thickness

Scientific paper

We propose a method to compute the visibility of nonradial oscillation modes for a star observed in the continuum. This method, based on the use of Eulerian coordinates, remains valid whenever the geometrical thickness of the emitting layer cannot be neglected. Some numerical tests are performed for comparison with the previous formulation of Dziembowski (1977), based on the use of Lagrangean coordinates.

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