FLUCTUATIONS OF THE MICROWAVE BACKGROUND-RADIATION ON LARGE AND INTERMEDIATE ANGULAR SCALES

The microwave background anisotropies are estimated for different types of spectra of initial perturbations. Results are presented for multipoles from l = 2 (the quadrupole) to l = 100. We take into account the Sachs-Wolfe and Doppler effects, but treat the recombination as instantaneous, which is a reasonable approximation for multipoles l < 100 (theta > 2-degrees). Measurements of DELTA-T/T anisotropies on angular scales theta almost-equal-to 2-degrees-3-degrees and larger are necessary for discrimination between different inflationary models, which predict a variety of shapes for the spectrum of initial fluctuations.