Bibcode
Eff-Darwich, A.; Perez Hernandez, F.
Referencia bibliográfica
A & A Supplement series, Vol. 125, October II 1997, 391-398.
Fecha de publicación:
10
1997
Número de citas
18
Número de citas referidas
12
Descripción
Helioseismic inversion techniques have been revealed as powerful tools
for inferring the internal structure and dynamics of the Sun. One of the
most popular techniques is Regularized Least Squares. When it is used,
it is necessary to define an inversion mesh and a penalty function,
without an a priori knowledge of the behaviour of the solution. In
addition, this penalty function is weighted by a trade-off parameter
that must be fixed in order to obtain the solution. We present here a
new technique, developed in order to find the optimal mesh and smoothing
function by means of a deep analysis of the basis functions of the
inversion problem. We have found that the method is suitable in
particular for obtaining the sound speed and density profiles
simultaneously, without any reference to the equation of state.