Broadband polarimetry with the square kilometre array: A unique astrophysical probe

B. M. Gaensler; Iván Agudo; Takuya Akahori; Julie Banfield; Rainer Beck; Ettore Carretti; Jamie Farnes; Marijke Haverkorn; George Heald; David Jones; Thomas Landecker; Sui Ann Mao; Ray Norris; Shane O'sullivan; Lawrence Rudnick; Dominic Schnitzeler; Nicholas Seymour; Xiaohui Sun

Broadband polarimetry with the square kilometre array: A unique astrophysical probe

B. M. Gaensler, Iván Agudo, Takuya Akahori, Julie Banfield, Rainer Beck, Ettore Carretti, Jamie Farnes, Marijke Haverkorn, George Heald, David Jones, Thomas Landecker, Sui Ann Mao, Ray Norris, Shane O'sullivan, Lawrence Rudnick, Dominic Schnitzeler, Nicholas Seymour, Xiaohui Sun

Research output: Contribution to journal › Conference article › peer-review

3 Scopus citations

Abstract

Faraday rotation of polarised background sources is a unique probe of astrophysical magnetic fields in a diverse range of foreground objects. However, to understand the properties of the polarised sources themselves and of depolarising phenomena along the line of sight, we need to complement Faraday rotation data with polarisation observations over very broad bandwidths. Just as it is impossible to properly image a complex source with limited u-v coverage, we can only meaningfully understand the magneto-ionic properties of polarised sources if we have excellent coverage in l2-space. We here propose a set of broadband polarisation surveys with both SKA1 and SKA2, which will provide a singular set of scientific insights on the ways in which galaxies and their environments have evolved over cosmic time.

Original language	English (US)
Article number	103
Journal	Proceedings of Science
Volume	9-13-June-2014
State	Published - 2014
Event	Advancing Astrophysics with the Square Kilometre Array, AASKA 2014 - Giardini Naxos, Italy Duration: Jun 9 2014 → Jun 13 2014

Bibliographical note

Funding Information:
B.M.G. acknowledges the support of the Australian Research Council (ARC) through an Australian Laureate Fellowship (FL100100114), and through the ARC Centre of Excellence for All-sky Astrophysics (CE110001020). We thank the referee for a constructive review of the original manuscript.

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Gaensler, B. M., Agudo, I., Akahori, T., Banfield, J., Beck, R., Carretti, E., Farnes, J., Haverkorn, M., Heald, G., Jones, D., Landecker, T., Mao, S. A., Norris, R., O'sullivan, S., Rudnick, L., Schnitzeler, D., Seymour, N., & Sun, X. (2014). Broadband polarimetry with the square kilometre array: A unique astrophysical probe. Proceedings of Science, 9-13-June-2014, Article 103.

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title = "Broadband polarimetry with the square kilometre array: A unique astrophysical probe",

abstract = "Faraday rotation of polarised background sources is a unique probe of astrophysical magnetic fields in a diverse range of foreground objects. However, to understand the properties of the polarised sources themselves and of depolarising phenomena along the line of sight, we need to complement Faraday rotation data with polarisation observations over very broad bandwidths. Just as it is impossible to properly image a complex source with limited u-v coverage, we can only meaningfully understand the magneto-ionic properties of polarised sources if we have excellent coverage in l2-space. We here propose a set of broadband polarisation surveys with both SKA1 and SKA2, which will provide a singular set of scientific insights on the ways in which galaxies and their environments have evolved over cosmic time.",

author = "Gaensler, {B. M.} and Iv{\'a}n Agudo and Takuya Akahori and Julie Banfield and Rainer Beck and Ettore Carretti and Jamie Farnes and Marijke Haverkorn and George Heald and David Jones and Thomas Landecker and Mao, {Sui Ann} and Ray Norris and Shane O'sullivan and Lawrence Rudnick and Dominic Schnitzeler and Nicholas Seymour and Xiaohui Sun",

note = "Funding Information: B.M.G. acknowledges the support of the Australian Research Council (ARC) through an Australian Laureate Fellowship (FL100100114), and through the ARC Centre of Excellence for All-sky Astrophysics (CE110001020). We thank the referee for a constructive review of the original manuscript.; Advancing Astrophysics with the Square Kilometre Array, AASKA 2014 ; Conference date: 09-06-2014 Through 13-06-2014",

year = "2014",

language = "English (US)",

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journal = "Proceedings of Science",

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TY - JOUR

T1 - Broadband polarimetry with the square kilometre array

T2 - Advancing Astrophysics with the Square Kilometre Array, AASKA 2014

AU - Gaensler, B. M.

AU - Agudo, Iván

AU - Akahori, Takuya

AU - Banfield, Julie

AU - Beck, Rainer

AU - Carretti, Ettore

AU - Farnes, Jamie

AU - Haverkorn, Marijke

AU - Heald, George

AU - Jones, David

AU - Landecker, Thomas

AU - Mao, Sui Ann

AU - Norris, Ray

AU - O'sullivan, Shane

AU - Rudnick, Lawrence

AU - Schnitzeler, Dominic

AU - Seymour, Nicholas

AU - Sun, Xiaohui

N1 - Funding Information: B.M.G. acknowledges the support of the Australian Research Council (ARC) through an Australian Laureate Fellowship (FL100100114), and through the ARC Centre of Excellence for All-sky Astrophysics (CE110001020). We thank the referee for a constructive review of the original manuscript.

PY - 2014

Y1 - 2014

N2 - Faraday rotation of polarised background sources is a unique probe of astrophysical magnetic fields in a diverse range of foreground objects. However, to understand the properties of the polarised sources themselves and of depolarising phenomena along the line of sight, we need to complement Faraday rotation data with polarisation observations over very broad bandwidths. Just as it is impossible to properly image a complex source with limited u-v coverage, we can only meaningfully understand the magneto-ionic properties of polarised sources if we have excellent coverage in l2-space. We here propose a set of broadband polarisation surveys with both SKA1 and SKA2, which will provide a singular set of scientific insights on the ways in which galaxies and their environments have evolved over cosmic time.

AB - Faraday rotation of polarised background sources is a unique probe of astrophysical magnetic fields in a diverse range of foreground objects. However, to understand the properties of the polarised sources themselves and of depolarising phenomena along the line of sight, we need to complement Faraday rotation data with polarisation observations over very broad bandwidths. Just as it is impossible to properly image a complex source with limited u-v coverage, we can only meaningfully understand the magneto-ionic properties of polarised sources if we have excellent coverage in l2-space. We here propose a set of broadband polarisation surveys with both SKA1 and SKA2, which will provide a singular set of scientific insights on the ways in which galaxies and their environments have evolved over cosmic time.

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M3 - Conference article

AN - SCOPUS:84979066375

SN - 1824-8039

VL - 9-13-June-2014

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 103

Y2 - 9 June 2014 through 13 June 2014

ER -

Broadband polarimetry with the square kilometre array: A unique astrophysical probe

Abstract

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