Astro Space Center, P. N. Lebedev Physical Institute, Profsoyuznaya 84/32, 117810 Moscow, Russia;Astrophysikalisches Institut Potsdam, An der Sternwarte 16, Potsdam D-14482, Germany
Abstract:
We propose a -inflation model that explains a significant part of the COBE signal by primordial cosmic gravitational waves. The primordial density perturbations fulfil both the constraints of large-scale microwave background and galaxy cluster normalization. The model is tested against the galaxy cluster power spectrum and the high-multipole angular cosmic microwave background anisotropy.