Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tests for Non-Gaussian Statistics in the DMR Four-Year Sky Maps   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.

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The categories of this paper are: q-bio
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The categories of this paper are: q-alg
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The categories of this paper are: cmp-lg
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The categories of this paper are: mtrl-th
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The categories of this paper are: nucl-th
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The categories of this paper are: nucl-ex
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The categories of this paper are: hep-ph
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The categories of this paper are: math
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The categories of this paper are: adap-org
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The categories of this paper are: cs
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The categories of this paper are: physics
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The categories of this paper are: gr-qc
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The categories of this paper are: hep-lat
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The categories of this paper are: patt-sol
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The categories of this paper are: dg-ga
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The categories of this paper are: solv-int