Super-large-scale structures in the distribution of infrared galaxies

Typical scales in the distribution of IRAS galaxies with the unnormalized p air count method. Samples are those provided by QDOT redshift survey and so rted out from the IRAS faint sources catalog. Analysis is concentrated an t he structures at super-large scales. The results show that statistically si gnificant typical scales do exist in the distribution of all these samples from both 2-dimensional and 3-dimensional analyses. These scales are consis tent with those found from the analyses of galaxies and clusters of galaxie s by Mo et al. and also consistent with those found from analysis of quasar s by Deng et al. The analysis provides additional evidence for the existenc e of typical scales in the large-scale structure of the universe. The exist ence of typical scales challenges all the existing models on the formation of galaxies and structures.