Fundamental Limitations on the Calibration of Redundant 21 cm Cosmology Instruments and Implications for HERA and the SKA

被引：64

作者：

Byrne, Ruby ^{[1
]}

Morales, Miguel F. ^{[1
]}

Hazelton, Bryna ^{[1
,2
]}

Li, Wenyang ^{[3
]}

Barry, Nichole ^{[4
,5
]}

Beardsley, Adam P. ^{[6
]}

Joseph, Ronniy ^{[5
,7
]}

Pober, Jonathan ^{[3
]}

Sullivan, Ian ^{[8
]}

Trott, Cathryn ^{[5
,7
]}

机构：

[1] Univ Washington, Dept Phys, Seattle, WA 98195 USA

[2] Univ Washington, eSci Inst, Seattle, WA 98195 USA

[3] Brown Univ, Dept Phys, Providence, RI 02912 USA

[4] Univ Melbourne, Sch Phys, Parkville, Vic, Australia

[5] ARC Ctr Excellence All Sky Astrophys 3 Dimens AST, Sydney, NSW, Australia

[6] Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ USA

[7] Curtin Univ, ICRAR, Bentley, WA, Australia

[8] Univ Washington, Dept Astron, Seattle, WA 98195 USA

来源：

ASTROPHYSICAL JOURNAL | 2019年 / 875卷 / 01期

基金：

美国国家科学基金会; 澳大利亚研究理事会;

关键词：

dark ages; reionization; first stars; instrumentation: interferometers; methods: data analysis; techniques: interferometric; RADIO INTERFEROMETRY; REIONIZATION; ARTIFACTS; EPOCH; ARRAY; I;

D O I：

10.3847/1538-4357/ab107d

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Precise instrument calibration is critical to the success of 21 cm cosmology experiments. Unmitigated errors in calibration contaminate the Epoch of Reionization (EoR) signal, precluding a detection. Barry et al. characterized one class of inherent errors that emerge from calibrating to an incomplete sky model; however, it has been unclear if errors in the sky model affect the calibration of redundant arrays. In this paper, we show that redundant calibration is vulnerable to errors from sky model incompleteness even in the limit of perfect antenna positioning and identical beams. These errors are at a level that can overwhelm the EoR signal and prevent a detection in crucial power spectrum modes. Finally, we suggest error mitigation strategies with implications for the Hydrogen Epoch of Reionization Array and the Square Kilometre Array.

引用

页数：11

共 45 条

[1] Spectral performance of SKA Log-periodic Antennas I: mitigating spectral artefacts in SKA1-LOW 21 cm cosmology experiments [J].

Acedo, Eloy de Lera ;

Trott, Cathryn M. ;

Wayth, Randall B. ;

Fagnoni, Nicolas ;

Bernardi, Gianni ;

Wakley, Brett ;

Koopmans, Leon V. E. ;

Faulkner, Andrew J. ;

de Vaate, Jan Geralt bij .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2017, 469 (03) :2662-2671

[2] Calibration requirements for detecting the 21 cm epoch of reionization power spectrum and implications for the SKA [J].

Barry, N. ;

Hazelton, B. ;

Sullivan, I. ;

Morales, M. F. ;

Pober, J. C. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2016, 461 (03) :3135-3144

[3] Holographic Beam Mapping of the CHIME Pathfinder Array [J].

Berger, Philippe ;

Newburgh, Laura B. ;

Amiri, Mandana ;

Bandura, Kevin ;

Cliche, Jean-Francois ;

Connor, Liam ;

Deng, Meiling ;

Denman, Nolan ;

Dobbs, Matt ;

Fandino, Mateus ;

Gilbert, Adam J. ;

Good, Deborah ;

Halpern, Mark ;

Hanna, David ;

Hincks, Adam D. ;

Hinshaw, Gary ;

Hofer, Carolin ;

Johnson, Andre M. ;

Landecker, Tom L. ;

Masui, Kiyoshi W. ;

Parra, Juan Mena ;

Oppermann, Niels ;

Pen, Ue-Li ;

Peterson, Jeffrey B. ;

Recnik, Andre ;

Robishaw, Timothy ;

Shaw, J. Richard ;

Siegel, Seth ;

Sigurdson, Kris ;

Smith, Kendrick ;

Storer, Emilie ;

Tretyakov, Ian ;

Van Gassen, Kwinten ;

Vanderlinde, Keith ;

Wiebe, Donald .

GROUND-BASED AND AIRBORNE TELESCOPES VI, 2016, 9906

[4] A high reliability survey of discrete Epoch of Reionization foreground sources in the MWA EoR0 field [J].

Carroll, P. A. ;

Line, J. ;

Morales, M. F. ;

Barry, N. ;

Beardsley, A. P. ;

Hazelton, B. J. ;

Jacobs, D. C. ;

Pober, J. C. ;

Sullivan, I. S. ;

Webster, R. L. ;

Bernardi, G. ;

Bowman, J. D. ;

Briggs, F. ;

Cappallo, R. J. ;

Corey, B. E. ;

de Oliveira-Costa, A. ;

Dillon, J. S. ;

Emrich, D. ;

Ewall-Wice, A. ;

Feng, L. ;

Gaensler, B. M. ;

Goeke, R. ;

Greenhill, L. J. ;

Hewitt, J. N. ;

Hurley-Walker, N. ;

Johnston-Hollitt, M. ;

Kaplan, D. L. ;

Kasper, J. C. ;

Kim, H. S. ;

Kratzenberg, E. ;

Lenc, E. ;

Loeb, A. ;

Lonsdale, C. J. ;

Lynch, M. J. ;

McKinley, B. ;

McWhirter, S. R. ;

Mitchell, D. A. ;

Morgan, E. ;

Neben, A. R. ;

Oberoi, D. ;

Offringa, A. R. ;

Ord, S. M. ;

Paul, S. ;

Pindor, B. ;

Prabu, T. ;

Procopio, P. ;

Riding, J. ;

Rogers, A. E. E. ;

Roshi, A. ;

Shankar, N. Udaya .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2016, 461 (04) :4151-4175

[5] BRIGHT SOURCE SUBTRACTION REQUIREMENTS FOR REDSHIFTED 21 cm MEASUREMENTS [J].

Datta, A. ;

Bowman, J. D. ;

Carilli, C. L. .

ASTROPHYSICAL JOURNAL, 2010, 724 (01) :526-538

[6]

DeBoer D. R, 2016, PASP, V129

[7] Polarized redundant-baseline calibration for 21 cm cosmology without adding spectral structure [J].

Dillon, Joshua S. ;

Kohn, Saul A. ;

Parsons, Aaron R. ;

Aguirre, James E. ;

Ali, Zaki S. ;

Bernardi, Gianni ;

Kern, Nicholas S. ;

Li, Wenyang ;

Liu, Adrian ;

Nunhokee, Chuneeta D. ;

Pober, Jonathan C. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2018, 477 (04) :5670-5681

[8] REDUNDANT ARRAY CONFIGURATIONS FOR 21 cm COSMOLOGY [J].

Dillon, Joshua S. ;

Parsons, Aaron R. .

ASTROPHYSICAL JOURNAL, 2016, 826 (02)

[9] A fast method for power spectrum and foreground analysis for 21 cm cosmology [J].

Dillon, Joshua S. ;

Liu, Adrian ;

Tegmark, Max .

PHYSICAL REVIEW D, 2013, 87 (04)

[10] The impact of modelling errors on interferometer calibration for 21 cm power spectra [J].

Ewall-Wice, Aaron ;

Dillon, Joshua S. ;

Liu, Adrian ;

Hewitt, Jacqueline .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2017, 470 (02) :1849-1870

← 1 2 3 4 5 →