Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Maximum-Likelihood Analysis of the COBE Angular Correlation Function   We have used maximum-likelihood estimation to determine the quadrupole
amplitude $Q_{\rm rms-PS}$ and the spectral index $n$ of the density
fluctuation power spectrum at recombination from the \cobe\ DMR data. We find a
strong correlation between the two parameters of the form $Q_{\rm
rms-PS}=(15.7\pm 2.6)\exp[0.46(1-n)]\mk$ for fixed $n$. Our result is slightly
smaller than and has a smaller statistical uncertainty than the 1992 estimate
of Smoot et al.

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The categories of this paper are: stat
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The categories of this paper are: alg-geom
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The categories of this paper are: acc-phys
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The categories of this paper are: gr-qc
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The categories of this paper are: bayes-an
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The categories of this paper are: patt-sol
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The categories of this paper are: nlin
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The categories of this paper are: cond-mat
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The categories of this paper are: adap-org
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The categories of this paper are: q-alg
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The categories of this paper are: cs
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The categories of this paper are: hep-th
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The categories of this paper are: q-fin
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The categories of this paper are: atom-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: dg-ga