Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: CMB lensing and primordial non-Gaussianity   We study the effects of gravitational lensing on the estimation of
non-Gaussianity from the bispectrum of the cosmic microwave background (CMB)
temperature anisotropies. We find that the effect of lensing on the bispectrum
may qualitatively be described as a smoothing of the acoustic features
analogous to the temperature power spectrum. In contrast to previous results,
for a Planck-like experiment which is cosmic-variance limited to L=2000, we
find that lensing causes no significant degradation of our ability to constrain
the non-Gaussianity amplitude fNL for both local and equilateral
configurations, provided that the biases due to the cross correlation between
the lensing potential and the integrated-Sachs-Wolfe (ISW) contribution to the
CMB temperature are adequately understood. With numerical simulations, we also
verify that low-order Taylor approximations to the lensed bispectrum and
ISW-lensing biases are accurate.

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The categories of this paper are: math-ph
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The categories of this paper are: q-fin
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
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The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
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The categories of this paper are: nucl-th
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The categories of this paper are: funct-an
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The categories of this paper are: q-alg
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The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: supr-con
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The categories of this paper are: solv-int
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The categories of this paper are: patt-sol
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The categories of this paper are: math