Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: New Constraint on Open Cold-Dark-Matter Models   We calculate the large-angle cross-correlation between the
cosmic-microwave-background (CMB) temperature and the x-ray-background (XRB)
intensity expected in an open Universe with cold dark matter (CDM) and a nearly
scale-invariant spectrum of adiabatic density perturbations. Results are
presented as a function of the nonrelativistic-matter density $\Omega_0$ (in
units of the critical density) and the x-ray bias $b_x$ (evaluated at a
redshift $z\simeq1$ in evolving-bias models) for both an open Universe and a
flat cosmological-constant Universe. Recent experimental upper limits to the
amplitude of this cross-correlation provide a new constraint to the
$\Omega_0$-$b_x$ parameter space that open-CDM models (and the open-inflation
models that produce them) must satisfy.

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The categories of this paper are: adap-org
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
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The categories of this paper are: nucl-th
2
The categories of this paper are: math
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The categories of this paper are: hep-ex
9
The categories of this paper are: nlin
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The categories of this paper are: gr-qc
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The categories of this paper are: q-fin
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The categories of this paper are: dg-ga