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 journalArticle

20 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 languageEnglish (US)
Pages (from-to)2040-2047
Number of pages8
JournalMonthly Notices of the Royal Astronomical Society
Volume435
Issue number3
DOIs
StatePublished - Nov 2013
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Keywords

  • cosmic background radiation

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