Tests for Non-Gaussian Statistics in the DMR Four-Year Sky Maps

Details Tests for Non-Gaussian Statistics in the DMR Four-Year Sky Maps Tests for Non-Gaussian Statistics in the DMR Four-Year Sky Maps

1996-01-12

arxiv.org/abs/astro-ph/9601062v1

Astronomy and Astrophysics

Astrophysics

15 pages including 4 encapsulated PostScript figures. Submitted to The Astrophysical Journal (Letters)

Scientific paper

10.1086/310078

We search the high-latitude portion of the COBE Differential Microwave Radiometers (DMR) 4-year sky maps for evidence of a non-Gaussian temperature distribution in the cosmic microwave background. The genus, 3-point correlation function, and 2-point correlation function of temperature maxima and minima are all in excellent agreement with the hypothesis that the CMB anisotropy on angular scales of 7 degrees or larger represents a random-phase Gaussian field. A likelihood comparison of the DMR sky maps to a set of random-phase non-Gaussian toy models selects the exact Gaussian model as most likely. Monte Carlo simulations show that the 2-point correlation of the peaks and valleys in the maps provides the greatest discrimination among the class of models tested.

Affiliated with

Also associated with

No associations

Rating

Tests for Non-Gaussian Statistics in the DMR Four-Year Sky 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 Tests for Non-Gaussian Statistics in the DMR Four-Year Sky Maps, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tests for Non-Gaussian Statistics in the DMR Four-Year Sky Maps will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-269590