Pith. sign in

REVIEW 1 cited by

BICEP2 / Keck Array VII: Matrix based E/B Separation applied to BICEP2 and the Keck Array

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 1603.05976 v2 pith:ZEFUU5GB submitted 2016-03-18 astro-ph.IM astro-ph.CO

BICEP2 / Keck Array VII: Matrix based E/B Separation applied to BICEP2 and the Keck Array

Keck Array , BICEP2 Collaborations: P. Ade , Z. Ahmed , R. W. Aikin , K. D. Alexander , D. Barkats , S. J. Benton , C. A. Bischoff
show 56 more authors
J. J. Bock R. Bowens-Rubin J. A. Brevik I. Buder E. Bullock V. Buza J. Connors B. P. Crill L. Duband C. Dvorkin J. P. Filippini S. Fliescher J. Grayson M. Halpern S. Harrison S. R. Hildebrandt G. C. Hilton H. Hui K. D. Irwin J. Kang K. S. Karkare E. Karpel J. P. Kaufman B. G. Keating S. Kefeli S. A. Kernasovskiy J. Kovac C. L. Kuo E. M. Leitch M. Lueker K. G. Megerian T. Namikawa C. B. Netterfield H. T. Nguyen R. O'Brient R. W. IV A. Orlando C. Pryke S. Richter R. Schwarz C. D. Sheehy Z. K. Staniszewski B. Steinbach R. V. Sudiwala G. P. Teply K. L. Thompson J. E. Tolan C. Tucker A. D. Turner A. G. Vieregg A. C. Weber D. V. Wiebe J. Willmert C. L. Wong W. L. K. Wu K. W. Yoon
This is my paper
classification astro-ph.IM astro-ph.CO
keywords componentsarrayb-modebicep2keckapplieddecomposede-mode
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
0 comments
read the original abstract

A linear polarization field on the sphere can be uniquely decomposed into an E-mode and a B-mode component. These two components are analytically defined in terms of spin-2 spherical harmonics. Maps that contain filtered modes on a partial sky can also be decomposed into E-mode and B-mode components. However, the lack of full sky information prevents orthogonally separating these components using spherical harmonics. In this paper, we present a technique for decomposing an incomplete map into E and B-mode components using E and B eigenmodes of the pixel covariance in the observed map. This method is found to orthogonally define E and B in the presence of both partial sky coverage and spatial filtering. This method has been applied to the BICEP2 and the Keck Array maps and results in reducing E to B leakage from LCDM E-modes to a level corresponding to a tensor-to-scalar ratio of $r<1\times10^{-4}$.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Detectors for CLASS-W2: The second 90 GHz telescope of the Cosmology Large Angular Scale Surveyor

    astro-ph.IM 2026-06 accept novelty 3.0

    A new 296-detector 90 GHz TES bolometer array for CLASS achieves uniform properties, 16 μK√s NET, 0.37 optical efficiency, and a 41% mapping speed boost after addressing blue-leak radiation.