Lensing simulation and power spectrum estimation for high-resolution CMB polarization maps

Thibaut Louis; Sigurd Næss; Sudeep Das; Joanna Dunkley; Blake Sherwin

doi:10.1093/mnras/stt1421

Lensing simulation and power spectrum estimation for high-resolution CMB polarization maps

Thibaut Louis, Sigurd Næss, Sudeep Das, Joanna Dunkley, Blake Sherwin

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

We present efficient algorithms for cosmic microwave background (CMB) lensing simulation and power spectrum estimation for flat-sky CMB polarization maps. We build a pure B-mode estimator to remedy E to B leakage due to partial sky coverage. We show that our estimators are unbiased, and consistent with the projected errors. We demonstrate our algorithm using simulated observations of small sky patches with realistic noise and weights for upcoming CMB polarization experiments.

Original language	English (US)
Pages (from-to)	2040-2047
Number of pages	8
Journal	Monthly Notices of the Royal Astronomical Society
Volume	435
Issue number	3
DOIs	https://doi.org/10.1093/mnras/stt1421
State	Published - Nov 2013
Externally published	Yes

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Keywords

cosmic background radiation

Access to Document

10.1093/mnras/stt1421

Cite this

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title = "Lensing simulation and power spectrum estimation for high-resolution CMB polarization maps",

abstract = "We present efficient algorithms for cosmic microwave background (CMB) lensing simulation and power spectrum estimation for flat-sky CMB polarization maps. We build a pure B-mode estimator to remedy E to B leakage due to partial sky coverage. We show that our estimators are unbiased, and consistent with the projected errors. We demonstrate our algorithm using simulated observations of small sky patches with realistic noise and weights for upcoming CMB polarization experiments.",

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year = "2013",

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T1 - Lensing simulation and power spectrum estimation for high-resolution CMB polarization maps

AU - Louis, Thibaut

AU - Næss, Sigurd

AU - Das, Sudeep

AU - Dunkley, Joanna

AU - Sherwin, Blake

PY - 2013/11

Y1 - 2013/11

N2 - We present efficient algorithms for cosmic microwave background (CMB) lensing simulation and power spectrum estimation for flat-sky CMB polarization maps. We build a pure B-mode estimator to remedy E to B leakage due to partial sky coverage. We show that our estimators are unbiased, and consistent with the projected errors. We demonstrate our algorithm using simulated observations of small sky patches with realistic noise and weights for upcoming CMB polarization experiments.

AB - We present efficient algorithms for cosmic microwave background (CMB) lensing simulation and power spectrum estimation for flat-sky CMB polarization maps. We build a pure B-mode estimator to remedy E to B leakage due to partial sky coverage. We show that our estimators are unbiased, and consistent with the projected errors. We demonstrate our algorithm using simulated observations of small sky patches with realistic noise and weights for upcoming CMB polarization experiments.

KW - cosmic background radiation

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U2 - 10.1093/mnras/stt1421

DO - 10.1093/mnras/stt1421

M3 - Article

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SP - 2040

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JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 3

ER -

Lensing simulation and power spectrum estimation for high-resolution CMB polarization maps

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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