Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Point-Source Power in 3 Year Wilkinson Microwave Anisotropy Probe Data   Using a set of multifrequency cross spectra computed from the 3 year WMAP sky
maps, we fit for the unresolved point-source contribution. For a white-noise
power spectrum, we find a Q-band amplitude of A=0.011 +/- 0.001 muK^2 sr
(antenna temperature), significantly smaller than the value of 0.017 +/- 0.002
muK^2 sr used to correct the spectra in the WMAP release. Modifying the
point-source correction in this way largely resolves the discrepancy that
Eriksen et al. found between the WMAP V- and W-band power spectra. Correcting
the co-added WMAP spectrum for both the low-l power excess due to a suboptimal
likelihood approximation--also reported by Eriksen et al.--and the high-l power
deficit due to oversubtracted point sources--presented in this Letter--we find
that the net effect in terms of cosmological parameters is an \~0.7 sigma shift
in n_s to larger values. For the combination of WMAP, BOOMERANG, and ACBAR
data, we find n_s=0.969 +/- 0.016, lowering the significance of n_s not equal
to 1 from ~2.7 sigma to ~2.0 sigma.

4
The categories of this paper are: cond-mat
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
0
The categories of this paper are: hep-ph
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph