Sensitivity of Low Frequency Oscillations to Updated Solar Models

Details Sensitivity of Low Frequency Oscillations to Updated Solar Models Sensitivity of Low Frequency Oscillations to Updated Solar Models

May 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998ssrv...85..117p&link_type=abstract

Space Science Reviews, v. 85, Issue 1/2, p. 117-124 (1998).

Physics

2

Scientific paper

A large number of acoustic frequencies have already been detected, leading to a "seismic" model of the Sun rather close to the actual standard solar models. The core however is not yet well constrained by these observations and frequencies of low degree, low frequency modes which penetrate deeply into the solar core are needed. We present here a study on the sensitivity of low degree low frequency (50 - 900 µHz) modes to the structure of the solar interior, in order to help their detection and identification in the low frequency spectrum observed by SoHO experiments like VIRGO and GOLF. The frequencies of p and g modes have been computed for a set of solar models with updated physics (Morel et al., 1997). We analyze their sensitivity to solar parameters like age and metallicity, and to various physical processes, like convective core overshoot and mass loss during the beginning of solar evolution.

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