Junction conditions across perturbed contact discontinuities

Details Junction conditions across perturbed contact discontinuities Junction conditions across perturbed contact discontinuities

Aug 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980mnras.192..503s&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 192, Aug. 1980, p. 503, 504.

Astronomy and Astrophysics

Astronomy

1

Discontinuity, Perturbation Theory, Pressure Oscillations, Solar Oscillations, Stars, Surface Properties, Continuity, Euler-Lagrange Equation, Junctions

Scientific paper

It is demonstrated that near an oscillating 'contact discontinuity' - a discontinuity which particles do not cross - the appropriate junction condition is that the Lagrangian change in the pressure be continuous. This corrects earlier claims that an inequivalent condition, continuity of the Eulerian pressure change, should be used when the usual linearized equations for the Eulerian perturbation are employed.

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