Physics
Scientific paper
Jun 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996phrvd..53.6796v&link_type=abstract
Physical Review D (Particles, Fields, Gravitation, and Cosmology), Volume 53, Issue 12, 15 June 1996, pp.6796-6804
Physics
Background Radiations, Origin And Formation Of The Universe, Particle-Theory And Field-Theory Models Of The Early Universe
Scientific paper
Important information about the early universe can be obtained from a study of the cosmic background radiation (CBR) in the microwave range. We study high-order correlation and structure functions of temperature fluctuations collected from the first two years of Differential Microwave Radiometer (DMR) observations from the Cosmic Background Explorer (COBE) satellite. The intent is to determine whether the radiation data possess significant deviations from Gaussianity. The most difficult problem in drawing meaningful conclusions is the presence of instrumental noise, which is quite strong even after a two-year averaging has been performed. We have taken into account the noise in various ways. Within the limitations imposed by the noise, our study shows that the fluctuations are quite likely to be Gaussian-like. The results can, therefore, be said to favor the inflation scenario of the universe.
Malagoli Andrea
Sreenivasan Katepalli R.
Vainshtein Samuel I.
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