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Planck 2015 results: VI. LFI mapmaking

Authors

T. S. Kisner

K. Kiiveri

R. Keskitalo

H. Kurki-Suonio

M. Kunz

J. Knoche

A. Lasenby

J. M. Lamarre

A.

J. P. Leahy

C. R. Lawrence

M. Lattanzi

R. Leonardi

L. P.L. Colombo

P. A.R. Ade

Planck Collaboration

P. A. R. Ade

N. Aghanim

M. Ashdown

J. Aumont

C. Baccigalupi

A. J. Banday

R. B. Barreiro

N. Bartolo

E. Battaner

K. Benabed

A.

A.

J. P. Bernard

M. Bersanelli

P. Bielewicz

A. Bonaldi

L. Bonavera

J. R. Bond

J. Borrill

F. R. Bouchet

M. Bucher

C. Burigana

R. C. Butler

E. Calabrese

J. F. Cardoso

A. Catalano

A. Chamballu

R. R. Chary

P. R. Christensen

S. Colombi

L. P. L. Colombo

B. P. Crill

A. Curto

F. Cuttaia

L. Danese

R. D. Davies

R. J. Davis

P. De Bernardis

A. De Rosa

G. De Zotti

J. Delabrouille

C. Dickinson

J. M. Diego

H. Dole

S. Donzelli

O.

M. Douspis

A. Ducout

X. Dupac

G. Efstathiou

F. Elsner

T. A.

H. K. Eriksen

J. Fergusson

F. Finelli

O. Forni

M. Frailis

E. Franceschi

A. Frejsel

S. Galeotta

S. Galli

K. Ganga

M. Giard

Y.

E.

J.

K. M.

S. Gratton

A. Gregorio

A. Gruppuso

F. K. Hansen

D. Hanson

D. L. Harrison

S.

D. Herranz

S. R. Hildebrandt

E. Hivon

M. Hobson

W. A. Holmes

A. Hornstrup

W. Hovest

K. M. Huffenberger

G. Hurier

A. H. Jaffe

T. R. Jaffe

M. Juvela

E.

R. Keskitalo

K. Kiiveri

T. S. Kisner

J. Knoche

M. Kunz

H. Kurki-Suonio

A.

J. M. Lamarre

A. Lasenby

M. Lattanzi

C. R. Lawrence

J. P. Leahy

R. Leonardi

J. Lesgourgues

F. Levrier

M. Liguori

P.B. Lilje

M.

V. Lindholm

M.

P.M. Lubin

J.F.

G. Maggio

D. Maino

N. Mandolesi

A. Mangilli

P.G. Martin

E.

S. Masi

S. Matarrese

P. Mazzotta

P. McGehee

P.R. Meinhold

A. Melchiorri

L. Mendes

A. Mennella

M. Migliaccio

S. Mitra

L. Montier

G. Morgante

D. Mortlock

ADAM MOSS Adam.Moss@nottingham.ac.uk
Associate Professor

D. Munshi

J.A. Murphy

P. Naselsky

F. Nati

P. Natoli

C.B. Netterfield

H.U.

D. Novikov

I. Novikov

F. Paci

L. Pagano

D. Paoletti

B. Partridge

F. Pasian

G. Patanchon

T.J. Pearson

O. Perdereau

L. Perotto

F. Perrotta

V. Pettorino

E. Pierpaoli

D. Pietrobon

E. Pointecouteau

G. Polenta

G.W. Pratt

G.

S. Prunet

J.-L. Puget

J.P. Rachen

R. Rebolo

M. Reinecke

M. Remazeilles

A. Renzi

G. Rocha

C. Rosset

M. Rossetti

G. Roudier

J.A.

B. Rusholme

M. Sandri

D. Santos

M. Savelainen

D. Scott

M.D. Seiffert

E.P.S. Shellard

L.D. Spencer

V. Stolyarov

R. Stompor

D. Sutton

A.-S. Suur-Uski

J.-F. Sygnet

J.A. Tauber

L. Terenzi

L. Toffolatti

M. Tomasi

M. Tristram

M. Tucci

J. Tuovinen

L. Valenziano

J. Valiviita

B. Van Tent

T. Vassallo

P. Vielva

F. Villa

L.A. Wade

B.D. Wandelt

R. Watson

I.K. Wehus

D. Yvon

A. Zacchei

A. Zonca



Abstract

© ESO, 2016. This paper describes the mapmaking procedure applied to Planck Low Frequency Instrument (LFI) data. The mapmaking step takes as input the calibrated timelines and pointing information. The main products are sky maps of I, Q, and U Stokes components. For the first time, we present polarization maps at LFI frequencies. The mapmaking algorithm is based on a destriping technique, which is enhanced with a noise prior. The Galactic region is masked to reduce errors arising from bandpass mismatch and high signal gradients. We apply horn-uniform radiometer weights to reduce the effects of beam-shape mismatch. The algorithm is the same as used for the 2013 release, apart from small changes in parameter settings. We validate the procedure through simulations. Special emphasis is put on the control of systematics, which is particularly important for accurate polarization analysis. We also produce low-resolution versions of the maps and corresponding noise covariance matrices. These serve as input in later analysis steps and parameter estimation. The noise covariance matrices are validated through noise Monte Carlo simulations. The residual noise in the map products is characterized through analysis of half-ring maps, noise covariance matrices, and simulations.

Citation

Kisner, T. S., Kiiveri, K., Keskitalo, R., Kurki-Suonio, H., Kunz, M., Knoche, J., …Zonca, A. (2016). Planck 2015 results: VI. LFI mapmaking. Astronomy and Astrophysics, 594, A6. https://doi.org/10.1051/0004-6361/201525813

Journal Article Type Article
Acceptance Date Feb 1, 2016
Online Publication Date Sep 20, 2016
Publication Date 2016-10
Deposit Date May 2, 2017
Publicly Available Date May 2, 2017
Journal Astronomy and Astrophysics
Electronic ISSN 1432-0746
Publisher EDP Open
Peer Reviewed Peer Reviewed
Volume 594
Article Number A6
Pages A6
DOI https://doi.org/10.1051/0004-6361/201525813
Keywords cosmic background radiation; methods: data analysis
Public URL https://nottingham-repository.worktribe.com/output/816269
Publisher URL http://www.aanda.org/articles/aa/abs/2016/10/aa25813-15/aa25813-15.html
Additional Information © ESO, 2016

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





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