Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Signatures of Voids and the CMBR   We explore the signature of a cold dark matter compensated void in the quasi
non-linear regime. We find that this void is entirely a cold spot on the
microwave background, in contrast to a non-linear void. On the last scattering
surface(LSS), it appears as either a hot or cold spot depending on where this
surface cuts the void. In addition, because the usual cancellations do not
occur, the void's LSS signature can be very large as it is proportional to
$R/H^{-1}$ rather than $(R/H^{-1})^3$. This implies strict limits for voids on
the LSS.

11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
29
The categories of this paper are: funct-an
32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
14
The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph
3
The categories of this paper are: physics
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
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The categories of this paper are: hep-ex
2
The categories of this paper are: math
21
The categories of this paper are: adap-org
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The categories of this paper are: supr-con
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The categories of this paper are: eess
13
The categories of this paper are: quant-ph