SENSITIVITY OF THE PREDICTED FREQUENCIES OF l = 1 GRAVITY MODES TO KNOWN PHYSICAL PROCESSES

摘要

We computed several solar models with various physical inputs already discussed in previous studies and we calculated the related gravity mode frequencies for each of them in order to check the influence of the corresponding physical processes on the predicted gravity mode frequencies for l = 1, n= 1 to 25. This study shows that the choice of the different physical processes, used in our solar models or other published models, leading to different sound speed profiles in the radiative zone has a significant impact on the gravity mode frequencies in the higher part of the spectrum. We then express the values in term of period to study the g-mode asymptotic properties. We notice that the periodic space between the modes changes only slightly from one model to the other in the asymptotic regime and ΔP{sub}1 varies only between 24 and 25 minutes, this translates a real improvement in comparison with the situation before the SoHO launch.