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Astron. Astrophys. 322, 982-984 (1997)

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Comments on the "analytic theory of p modes" by Dzhalilov and Staude

Y. Zhugzhda 1, 2 and M. Stix 1

1 Kiepenheuer-Institut für Sonnenphysik, Schöneckstr. 6, D-79104 Freiburg, Germany
2 Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation of the Russian Academy of Sciences, Troitsk city, Moscow Region, 142092 Russia

Received 1 March 1996 / Accepted 2 December 1996


Dzhalilov & Staude (1995; hereinafter DS) have proposed a new "analytic theory" of p modes for the atmospheres of the Sun and Sun-like stars, which explains the p-mode spectrum in terms of "resonant transmission" of acoustic waves. It is shown that this result is mistaken because of an incorrect fit of the piecewise analytic solutions at the boundaries between the diverse layers of the atmosphere. Apart from this incorrect treatment of wave propagation, the interpretation in terms of resonant transmission appears to arise from a mix-up of resonance and interference phenomena. There is also some confusion about the concepts of tunnel effect and turning point.

Key words: hydrodynamics – Sun: atmosphere – Sun: oscillations – stars: oscillations

Send offprint requests to: Y. Zhugzhda

© European Southern Observatory (ESO) 1997

Online publication: June 5, 1998