Performance of the polarization leakage correction in the PILOT data
Bernard J.-P. Bernard A. Roussel H. Choubani I. Alina D. Aumont J. Hughes A. Ristorcelli I. Stever S. Matsumura T. Sugiyama S. Komatsu K. de Gasperis G. Ferrière K. Guillet V. Ysard N. Ade P. de Bernardis P. Bray N. Crane B. Dubois J.-P. Griffin M. Hargrave P. Longval Y. Louvel S. Maffei B. Masi S. Mot B. Montel J. Pajot F. Pérot E. Ponthieu N. Rodriguez L. Sauvage V. Savini G. Tucker C. Vacher F.
August 2023Springer Science and Business Media B.V.
Experimental Astronomy
2023#56Issue 1197 - 222 pp.
The Polarized Instrument for Long-wavelength Observation of the Tenuous interstellar medium (PILOT) is a balloon-borne experiment that aims to measure the polarized emission of thermal dust at a wavelength of 240µm (1.2 THz). The PILOT experiment flew from Timmins, Ontario, Canada in 2015 and 2019 and from Alice Springs, Australia in April 2017. The in-flight performance of the instrument during the second flight was described in [1]. In this paper, we present data processing steps that were not presented in [1] and that we have recently implemented to correct for several remaining instrumental effects. The additional data processing concerns corrections related to detector cross-talk and readout circuit memory effects, and leakage from total intensity to polarization. We illustrate the above effects and the performance of our corrections using data obtained during the third flight of PILOT, but the methods used to assess the impact of these effects on the final science-ready data, and our strategies for correcting them will be applied to all PILOT data. We show that the above corrections, and in particular that for the intensity to polarization leakage, which is most critical for accurate polarization measurements with PILOT, are accurate to better than 0.4% as measured on Jupiter during flight#3.
Far Infrared , Interstellar Dust , PILOT , Polarization , Systematic effects
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Institut de Recherche en Astrophysique et Planétologie (IRAP), Université Paul Sabatier, 9 Av du Colonel Roche, BP 44346, Toulouse cedex 4, 31028, France
Institut d’Astrophysique de Paris, Sorbonne Université, CNRS UMR 7095, Paris, 75014, France
Physics Department, Nazarbayev University, 53 Kabanbay Batyr Avenue, Nur-Sultan city, Kazakhstan
Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU)(WPI) The University of Tokyo Institutes for Advanced Study (UTIAS), The University of Tokyo, 5-1-5 Kashiwa-no-Ha, Chiba, Kashiwa City, 277-8583, Japan
Department, Okayama University, 3-1-1, Tsushimanaka, Kita-ku, Okayama, Okayama City, 700-8530, Japan
Dipartimento di Fisica, Università degli studi di Roma “Tor Vergata”, V.le della Ricerca Scientifica, 1, Roma, 00133, Italy
Institut d’Astrophysique Spatiale, CNRS, Université Paris-Saclay, Bât.121, Orsay cedex, 91405, France
Laboratoire Univers et Particules de Montpellier (CNRS/IN2P3), Université de Montpellier, Place Eugène Bataillon - CC 72, Montpellier, 34095 Cedex 5, France
School of Physics and Astronomy, Cardiff University, Queen’s Building, The Parade, Cardiff, CF24 3AA, United Kingdom
Dipartimento di Fisica, Università degli studi di Roma “La Sapienza”, P.le A. Moro, 2, Roma, 00185, Italy
DSO/BL/NB, Centre Nationale des Etudes Spatiales, 18 Av. E. Belin, Toulouse, 31401, France
Department of Physics and Astrophysics, Cardiff University, PO BOX 913, 5 the Parade, Cardiff, United Kingdom
DSO/BL, Centre Nationale des Etudes Spatiales, 18 Av. E. Belin, Toulouse, 31401, France
DSO/DV/AS, Centre Nationale des Etudes Spatiales, 18 Av. E. Belin, Toulouse, 31401, France
University Grenoble Alpes, CNRS, IPAG, Grenoble, 38000, France
CEA/Saclay, Gif-sur-Yvette, 91191, France
Physics and Astronomy Department, University College London, Gower Street, London, WC1E 6BT, United Kingdom
DAO/BL, Centre Nationale des Etudes Spatiales, 18 Av. E. Belin, Toulouse, 31401, France
Institut de Recherche en Astrophysique et Planétologie (IRAP)
Institut d’Astrophysique de Paris
Physics Department
Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU)(WPI) The University of Tokyo Institutes for Advanced Study (UTIAS)
Department
Dipartimento di Fisica
Institut d’Astrophysique Spatiale
Laboratoire Univers et Particules de Montpellier (CNRS/IN2P3)
School of Physics and Astronomy
Dipartimento di Fisica
DSO/BL/NB
Department of Physics and Astrophysics
DSO/BL
DSO/DV/AS
University Grenoble Alpes
CEA/Saclay
Physics and Astronomy Department
DAO/BL
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