Astronomy and Astrophysics – Astrophysics
Scientific paper
2005-11-19
Braz.J.Phys. 35 (2005) 1185-1190
Astronomy and Astrophysics
Astrophysics
6 pages, 11 figures, to appear in Brazilian Journal of Physics (2005)
Scientific paper
Observations show that the Cosmic Microwave Background (CMB) contains tiny variations at the 10^{-5} level around its black-body equilibrium temperature. The detection of these temperature fluctuations provides to modern Cosmology evidence for the existence of primordial density perturbations that seeded all the structures presently observed. The vast majority of the cosmological information is contained in the 2-point temperature function, which measures the angular correlation of these temperature fluctuations distributed on the celestial sphere. Here we study such angular correlations using a recently introduced statistic-geometrical method. Moreover, we use Monte Carlo simulated CMB temperature maps to show the equivalence of this method with the 2-point temperature function (best known as the 2-Point Angular Correlation Function). We also investigate here the robustness of this new method under possible divisions of the original catalog-data in sub-catalogs. Finally, we show some applications of this new method to simple cases.
No associations
LandOfFree
The large-scale angular correlations in CMB temperature maps does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The large-scale angular correlations in CMB temperature maps, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The large-scale angular correlations in CMB temperature maps will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-369496