Computer Science – Sound
Scientific paper
Mar 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994mnras.267..209b&link_type=abstract
Monthly Notices of the Royal Astronomical Society, vol. 267, p. 209
Computer Science
Sound
75
Helioseismology, Stellar Convection, Acoustic Velocity, Solar Oscillations, Stellar Models, Solar Interior
Scientific paper
The discontinuity in the derivatives of the sound speed at the base of the overshoot layer below the solar convection zone introduces a characteristic oscillatory component in the frequencies of solar p-modes as a function of the radial order n. The amplitude of this oscillatory part is calibrated as a function of the extent of overshoot using a sequence of solar models constructed with varying extent of overshoot. Using this calibration, an attempt is made to measure the extent of overshoot below the solar convection zone using the available frequencies of the p-modes. It is found that the observed frequencies are consistent with a solar model without overshoot. Further, taking account of the errors in observations, it is possible to put a 2-sigma upper limit of 0.1 H(p) on the extent of overshoot.
Antia H. M.
Basu Sarbani
Narasimha D.
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