  A series of Cerium based heavy fermion materials is studied using a
combination of local density functional theory and many-body Gutzwiller
approximation. Computed orbial dependent electronic mass enhancements
parameters are compared with available data extracted from measured values of
the Sommerfeld coefficient. The Gutzwiller density functional theory is shown
to remarkably follow the trends across a variety of Ce compounds, and to give
important insights on orbital selective mass renormalizations that allows a
better understanding of wide spread of data.
