Proceedings of the

It is the * S*calar and * T*ensor modes of Gaussian metric perturbations
that are standardly produced in any cosmological inflation with
one fundamental scalar field . The contributions of both modes due to
the Sachs--Wolfe effect in the CMB temperature anisotropy convolved with the
COBE DMR antenna, are commonly presented in terms of * S* and * T* parts:

Available observational data cannot yet discriminate the ratio * T/S*, thus,
the latter currently remains a pure theoretical tool in the analysis.

Wed Jul 23 11:53:34 BST 1997