Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Foreground Contributions to 0.2-2 Degree CMB Anisotropies   We examine the extent to which galactic and extragalactic foregrounds can
hamper the detection of primordial Cosmic Microwave Background (CMB)
anisotropies. We limit our discussion to intermediate angular scales,
$10^{\prime}\lsim \theta \lsim 2^{\circ}$, since many current as well as future
experiments have been designed to map CMB anisotropies at these angular scales.
In fact, scales of $\gsim 10^{\prime}$ are of crucial importance to test both
the conditions in the early Universe and current theories of the gravitational
collapse.

21
The categories of this paper are: adap-org
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
9
The categories of this paper are: nlin
4
The categories of this paper are: cond-mat
14
The categories of this paper are: math-ph
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
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The categories of this paper are: q-alg
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The categories of this paper are: solv-int
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The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
20
The categories of this paper are: acc-phys