Computer Science – Sound
Scientific paper
Aug 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...248..263p&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 248, no. 1, Aug. 1991, p. 263-269. Research supported by NASA.
Computer Science
Sound
12
Equations Of State, Solar Atmosphere, Solar Oscillations, Sound Waves, Solar Interior, Stellar Envelopes, Stellar Models
Scientific paper
The frequency dependence of the phase shift, which arises from the reflection of internal acoustic waves (p-modes) at the outer solar layers, can be determined from the accurately measured frequencies of intermediate-degree p-modes. This dependence is sensitive to the complicated structure of the outer solar layers, down to the depth of the second ionization zone of helium. It can be used to calibrate solar envelope models. The results of the direct tests of a variety of solar envelope models using the phase shift inferred from the solar oscillation frequencies are reported.
Dappen Werner
Pamiatnykh A. A.
Vorontsov Sergei V.
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