Related papers: Bayesian estimation of cross-coupling and reflecti…

Mitigating Internal Instrument Coupling II: A Method Demonstration with the Hydrogen Epoch of Reionization Array

We present a study of internal reflection and cross coupling systematics in Phase I of the Hydrogen Epoch of Reionization Array (HERA). In a companion paper, we outlined the mathematical formalism for such systematics and presented…

Instrumentation and Methods for Astrophysics · Physics 2020-01-15 Nicholas S. Kern , Aaron R. Parsons , Joshua S. Dillon , Adam E. Lanman , Adrian Liu , Philip Bull , Aaron Ewall-Wice , Zara Abdurashidova , James E. Aguirre , Paul Alexander , Zaki S. Ali , Yanga Balfour , Adam P. Beardsley , Gianni Bernardi , Judd D. Bowman , Richard F. Bradley , Jacob Burba , Chris L. Carilli , Carina Cheng , David R. DeBoer , Matt Dexter , Eloy de Lera Acedo , Nicolas Fagnoni , Randall Fritz , Steve R. Furlanetto , Brian Glendenning , Deepthi Gorthi , Bradley Greig , Jasper Grobbelaar , Ziyaad Halday , Bryna J. Hazelton , Jacqueline N. Hewitt , Jack Hickish , Daniel C. Jacobs , Austin Julius , Joshua Kerrigan , Piyanat Kittiwisit , Saul A. Kohn , Matthew Kolopanis , Paul La Plante , Telalo Lekalake , David MacMahon , Lourence Malan , Cresshim Malgas , Matthys Maree , Zachary E. Martinot , Eunice Matsetela , Andrei Mesinger , Mathakane Molewa , Miguel F. Morales , Tshegofalang Mosiane , Steven G. Murray , Abraham R. Neben , Aaron R. Parsons , Nipanjana Patra , Samantha Pieterse , Jonathan C. Pober , Nima Razavi-Ghods , Jon Ringuette , James Robnett , Kathryn Rosie , Peter Sims , Craig Smith , Angelo Syce , Nithyanandan Thyagarajan , Peter K. G. Williams , Haoxuan Zheng

Effects of Antenna Beam Chromaticity on Redshifted 21~cm Power Spectrum and Implications for Hydrogen Epoch of Reionization Array

Unaccounted for systematics from foregrounds and instruments can severely limit the sensitivity of current experiments from detecting redshifted 21~cm signals from the Epoch of Reionization (EoR). Upcoming experiments are faced with a…

Cosmology and Nongalactic Astrophysics · Physics 2016-07-06 Nithyanandan Thyagarajan , Aaron Parsons , David DeBoer , Judd Bowman , Aaron Ewall-Wice , Abraham Neben , Nipanjana Patra

Mitigating calibration errors from mutual coupling with time-domain filtering of 21 cm cosmological radio observations

The 21 cm transition from neutral Hydrogen promises to be the best observational probe of the Epoch of Reionisation (EoR). This has led to the construction of low-frequency radio interferometric arrays, such as the Hydrogen Epoch of…

Instrumentation and Methods for Astrophysics · Physics 2024-07-31 N. Charles , N. S. Kern , R. Pascua , G. Bernardi , L. Bester , O. Smirnov , E. d. L. Acedo , Z. Abdurashidova , T. Adams , J. E. Aguirre , R. Baartman , A. P. Beardsley , L. M. Berkhout , T. S. Billings , J. D. Bowman , P. Bull , J. Burba , R. Byrne , S. Carey , K. Chen , S. Choudhuri , T. Cox , D. R. DeBoer , M. Dexter , J. S. Dillon , S. Dynes , N. Eksteen , J. Ely , A. Ewall-Wice , R. Fritz , S. R. Furlanetto , K. Gale-Sides , H. Garsden , B. K. Gehlot , A. Ghosh , A. Gorce , D. Gorthi , Z. Halday , B. J. Hazelton , J. N. Hewitt , J. Hickish , T. Huang , D. C. Jacobs , A. Josaitis , J. Kerrigan , P. Kittiwisit , M. Kolopanis , A. Lanman , A. Liu , Y. -Z. Ma , D. H. E. MacMahon , L. Malan , K. Malgas , C. Malgas , B. Marero , Z. E. Martinot , L. McBride , A. Mesinger , N. Mohamed-Hinds , M. Molewa , M. F. Morales , S. Murray , B. Nikolic , H. Nuwegeld , A. R. Parsons , N. Patra , P. L. Plante , Y. Qin , E. Rath , N. Razavi-Ghods , D. Riley , J. Robnett , K. Rosie , M. G. Santos , P. Sims , S. Singh , D. Storer , H. Swarts , J. Tan , M. J. Wilensky , P. K. G. Williams , P. v. Wyngaarden , H. Zheng

Mitigating Internal Instrument Coupling for 21 cm Cosmology I: Temporal and Spectral Modeling in Simulations

We study the behavior of internal signal chain reflections and antenna cross coupling as systematics for 21 cm cosmological surveys. We outline the mathematics for how these systematics appear in interferometric visibilities and describe…

Instrumentation and Methods for Astrophysics · Physics 2019-10-28 Nicholas S. Kern , Aaron R. Parsons , Joshua S. Dillon , Adam E. Lanman , Nicolas Fagnoni , Eloy de Lera Acedo

First Results from HERA Phase I: Upper Limits on the Epoch of Reionization 21 cm Power Spectrum

We report upper-limits on the Epoch of Reionization (EoR) 21 cm power spectrum at redshifts 7.9 and 10.4 with 18 nights of data ($\sim36$ hours of integration) from Phase I of the Hydrogen Epoch of Reionization Array (HERA). The Phase I…

Cosmology and Nongalactic Astrophysics · Physics 2022-03-02 The HERA Collaboration , Zara Abdurashidova , James E. Aguirre , Paul Alexander , Zaki S. Ali , Yanga Balfour , Adam P. Beardsley , Gianni Bernardi , Tashalee S. Billings , Judd D. Bowman , Richard F. Bradley , Philip Bull , Jacob Burba , Steve Carey , Chris L. Carilli , Carina Cheng , David R. DeBoer , Matt Dexter , Eloy de Lera Acedo , Taylor Dibblee-Barkman , Joshua S. Dillon , John Ely , Aaron Ewall-Wice , Nicolas Fagnoni , Randall Fritz , Steven R. Furlanetto , Kingsley Gale-Sides , Brian Glendenning , Deepthi Gorthi , Bradley Greig , Jasper Grobbelaar , Ziyaad Halday , Bryna J. Hazelton , Jacqueline N. Hewitt , Jack Hickish , Daniel C. Jacobs , Austin Julius , Nicholas S. Kern , Joshua Kerrigan , Piyanat Kittiwisit , Saul A. Kohn , Matthew Kolopanis , Adam Lanman , Paul La Plante , Telalo Lekalake , David Lewis , Adrian Liu , David MacMahon , Lourence Malan , Cresshim Malgas , Matthys Maree , Zachary E. Martinot , Eunice Matsetela , Andrei Mesinger , Mathakane Molewa , Miguel F. Morales , Tshegofalang Mosiane , Steven G. Murray , Abraham R. Neben , Bojan Nikolic , Chuneeta D. Nunhokee , Aaron R. Parsons , Nipanjana Patra , Robert Pascua , Samantha Pieterse , Jonathan C. Pober , Nima Razavi-Ghods , Jon Ringuette , James Robnett , Kathryn Rosie , Peter Sims , Saurabh Singh , Craig Smith , Angelo Syce , Nithyanandan Thyagarajan , Peter K. G. Williams , Haoxuan Zheng

Understanding the HERA Phase I receiver system with simulations and its impact on the detectability of the EoR delay power spectrum

The detection of the Epoch of Reionization (EoR) delay power spectrum using a "foreground avoidance method" highly depends on the instrument chromaticity. The systematic effects induced by the radio-telescope spread the foreground signal in…

Instrumentation and Methods for Astrophysics · Physics 2020-10-28 Nicolas Fagnoni , Eloy de Lera Acedo , David R. DeBoer , Zara Abdurashidova , James E. Aguirre , Paul Alexander , Zaki S. Ali , Yanga Balfour , Adam P. Beardsley , Gianni Bernardi , Tashalee S. Billings , Judd D. Bowman , Richard F. Bradley , Phil Bull , Jacob Burba , Chris L. Carilli , Carina Cheng , Matt Dexter , Joshua S. Dillon , Aaron Ewall-Wice , Randall Fritz , Steve R. Furlanetto , Kingsley Gale-Sides , Brian Glendenning , Deepthi Gorthi , Bradley Greig , Jasper Grobbelaar , Ziyaad Halday , Bryna J. Hazelton , Jacqueline N. Hewitt , Jack Hickish , Daniel C. Jacobs , Alec Josaitis , Austin Julius , Nicholas S. Kern , Joshua Kerrigan , Honggeun Kim , Piyanat Kittiwisit , Saul A. Kohn , Matthew Kolopanis , Adam Lanman , Paul La Plante , Telalo Lekalake , Adrian Liu , David MacMahon , Lourence Malan , Cresshim Malgas , Matthys Maree , Zachary E. Martinot , Eunice Matsetela , Juan Mena Parra , Andrei Mesinger , Mathakane Molewa , Miguel F. Morales , Tshegofalang Mosiane , Abraham R. Neben , Bojan Nikolic , Aaron R. Parsons , Nipanjana Patra , Samantha Pieterse , Jonathan C. Pober , Nima Razavi-Ghods , James Robnett , Kathryn Rosie , Peter Sims , Craig Smith , Angelo Syce , Nithyanandan Thyagarajan , Peter K. G. Williams , Haoxuan Zheng

Absolute Calibration Strategies for the Hydrogen Epoch of Reionization Array and Their Impact on the 21 cm Power Spectrum

We discuss absolute calibration strategies for Phase I of the Hydrogen Epoch of Reionization Array (HERA), which aims to measure the cosmological 21 cm signal from the Epoch of Reionization (EoR). HERA is a drift-scan array with a 10 degree…

Instrumentation and Methods for Astrophysics · Physics 2020-02-26 Nicholas S. Kern , Joshua S. Dillon , Aaron R. Parsons , Christopher L. Carilli , Gianni Bernardi , Zara Abdurashidova , James E. Aguirre , Paul Alexander , Zaki S. Ali , Yanga Balfour , Adam P. Beardsley , Tashalee S. Billings , Judd D. Bowman , Richard F. Bradley , Philip Bull , Jacob Burba , Steven Carey , Carina Cheng , David R. DeBoer , Matt Dexter , Eloy de Lera Acedo , John Ely , Aaron Ewall-Wice , Nicolas Fagnoni , Randall Fritz , Steve R. Furlanetto , Kingsley Gale-Sides , Brian Glendenning , Deepthi Gorthi , Bradley Greig , Jasper Grobbelaar , Ziyaad Halday , Bryna J. Hazelton , Jacqueline N. Hewitt , Jack Hickish , Daniel C. Jacobs , Austin Julius , Joshua Kerrigan , Piyanat Kittiwisit , Saul A. Kohn , Matthew Kolopanis , Adam Lanman , Paul La Plante , Telalo Lekalake , Adrian Liu , David MacMahon , Lourence Malan , Cresshim Malgas , Matthys Maree , Zachary E. Martinot , Eunice Matsetela , Andrei Mesinger , Mathakane Molewa , Miguel F. Morales , Tshegofalang Mosiane , Steven G. Murray , Abraham R. Neben , Bojan Nikolic , Chuneeta D. Nunhokee , Nipanjana Patra , Samantha Pieterse , Jonathan C. Pober , Nima Razavi-Ghods , Jon Ringuette , James Robnett , Kathryn Rosie , Peter Sims , Craig Smith , Angelo Syce , Nithyanandan Thyagarajan , Peter K. G. Williams , Haoxuan Zheng

The Hydrogen Epoch of Reionization Array Dish III: Measuring Chromaticity of Prototype Element with Reflectometry

The experimental efforts to detect the redshifted 21 cm signal from the Epoch of Reionization (EoR) are limited predominantly by the chromatic instrumental systematic effect. The delay spectrum methodology for 21 cm power spectrum…

Instrumentation and Methods for Astrophysics · Physics 2018-03-21 Nipanjana Patra , Aaron R. Parsons , David R. DeBoer , Nithyanandan Thyagarajan , Aaron Ewall-Wice , Gilbert Hsyu , Tsz Kuk Leung , Cherie K. Day , James E. Aguirre , Paul Alexander , Zaki S. Ali , Adam P. Beardsley , Judd D. Bowman , Richard F. Bradley , Chris L. Carilli , Carina Cheng , Eloy de Lera Acedo , Joshua S. Dillon , Gcobisa Fadana , Nicolas Fagnoni , Randall Fritz , Steve R. Furlanetto , Brian Glendenning , Bradley Greig , Jasper Grobbelaar , Bryna J. Hazelton , Jacqueline N. Hewitt , Daniel C. Jacobs , Austin Julius , MacCalvin Kariseb , Saul A. Kohn , Anna Lebedeva , Telalo Lekalake , Adrian Liu , Anita Loots , David MacMahon , Lourence Malan , Cresshim Malgas , Matthys Maree , Zachary Martinot , Nathan Mathison , Eunice Matsetela , Andrei Mesinger , Miguel F. Morales , Abraham R. Neben , Samantha Pieterse , Jonathan C. Pober , Nima Razavi-Ghods , Jon Ringuette , James Robnett , Kathryn Rosie , Raddwine Sell , Craig Smith , Angelo Syce , Max Tegmark , Peter K. G. Williams , Haoxuan Zheng

Estimating the Feasibility of 21cm-Ly$\alpha$ Synergies using the Hydrogen Epoch of Reionization Array

Cross-correlating 21cm and Ly$\alpha$ intensity maps of the Epoch of Reionization (EoR) promises to be a powerful tool for exploring the properties of the first galaxies. Next-generation intensity mapping experiments such as the Hydrogen…

Cosmology and Nongalactic Astrophysics · Physics 2022-03-02 Tyler A. Cox , Daniel C. Jacobs , Steven G. Murray

Bayesian power spectrum estimation with modelling of systematic effects in delay-fringe rate space

Observing the Epoch of Reionisation using 21cm radio interferometry has proven to be a challenging task. Extraction of the extremely faint redshifted signal is complicated by the presence of bright foregrounds, radio frequency interference…

Cosmology and Nongalactic Astrophysics · Physics 2026-04-30 Sohini Dutta , Philip Bull , Jacob Burba , Michael J. Wilensky , Zheng Zhang , Ainulnabilah Nasirudin

Imaging and Modeling Data from the Hydrogen Epoch of Reionization Array

We analyze data from the Hydrogen Epoch of Reionization Array. This is the third in a series of papers on the closure phase delay-spectrum technique designed to detect the HI 21cm emission from cosmic reionization. We present the details of…

Instrumentation and Methods for Astrophysics · Physics 2022-01-19 C. L. Carilli{1 , 2} , N. Thyagarajan{1} , J. Kent{2} , B. Nikolic{2} , K. Gale-Sides{2} , N. S. Kern{3} , G. Bernardi{4 , 5 , 6} , A. Mesinger{7} , S. Matika{5} , the HERA TEAM {1}{National Radio Astronomy Observatory , P. O. Box 0 , Socorro , NM 87801 , USA , ccarilli@nrao. edu , ORCID , : , 0000-0001-6647-3861} {2}{Astrophysics Group , Cavendish Laboratory , JJ Thomson Avenue , Cambridge CB3 0HE , UK} {3}{Department of Astronomy , University of California , Berkeley , CA} {4}{INAF-Istituto di Radioastronomia , via Gobetti 101 , 40129 , Bologna , Italy} {5}{Department of Physics , Electronics , Rhodes University , PO Box 94 , Grahamstown , 6140 , South Africa} {6}{The South African Radio Astronomy Observatory , 2 Fir Street , Black River Park , Observatory , 7925 , South Africa} {7}{Scuola Normale Superiore , 56126 Pisa , PI , Italy}

Strategy for mitigation of systematics for EoR experiments with the Murchison Widefield Array

Observations of the 21 cm signal face significant challenges due to bright astrophysical foregrounds that are several orders of magnitude higher than the brightness of the hydrogen line, along with various systematics. Successful 21 cm…

Cosmology and Nongalactic Astrophysics · Physics 2024-12-11 Chuneeta D. Nunhokee , Dev Null , Cathryn M. Trott , Christopher H. Jordan , Jack B. Line , Randall Wayth , Nichole Barry

Foreground modelling via Gaussian process regression: an application to HERA data

The key challenge in the observation of the redshifted 21-cm signal from cosmic reionization is its separation from the much brighter foreground emission. Such separation relies on the different spectral properties of the two components,…

Cosmology and Nongalactic Astrophysics · Physics 2020-05-20 Abhik Ghosh , Florent Mertens , Gianni Bernardi , Mário G. Santos , Nicholas S. Kern , Christopher L. Carilli , Trienko L. Grobler , Léon V. E. Koopmans , Daniel C. Jacobs , Adrian Liu , Aaron R. Parsons , Miguel F. Morales , James E. Aguirre , Joshua S. Dillon , Bryna J. Hazelton , Oleg M. Smirnov , Bharat K. Gehlot , Siyanda Matika , Paul Alexander , Zaki S. Ali , Adam P. Beardsley , Roshan K. Benefo , Tashalee S. Billings , Judd D. Bowman , Richard F. Bradley , Carina Cheng , Paul M. Chichura , David R. DeBoer , Eloy de Lera Acedo , Aaron Ewall-Wice , Gcobisa Fadana , Nicolas Fagnoni , Austin F. Fortino , Randall Fritz , Steve R. Furlanetto , Samavarti Gallardo , Brian Glendenning , Deepthi Gorthi , Bradley Greig , Jasper Grobbelaar , Jack Hickish , Alec Josaitis , Austin Julius , Amy S. Igarashi , MacCalvin Kariseb , Saul A. Kohn , Matthew Kolopanis , Telalo Lekalake , Anita Loots , David MacMahon , Lourence Malan , Cresshim Malgas , Matthys Maree , Zachary E. Martinot , Nathan Mathison , Eunice Matsetela , Andrei Mesinger , Abraham R. Neben , Bojan Nikolic , Chuneeta D. Nunhokee , Nipanjana Patra , Samantha Pieterse , Nima Razavi-Ghods , Jon Ringuette , James Robnett , Kathryn Rosie , Raddwine Sell , Craig Smith , Angelo Syce , Max Tegmark , Nithyanandan Thyagarajan , Peter K. G. Williams , Haoxuan Zheng

Fundamental uncertainty levels of 21cm power spectra from a delay analysis

Several experimental efforts are underway to measure the power spectrum of 21cm fluctuations from the Epoch of Reionization (EoR) using low-frequency radio interferometers. Experiments like the Hydrogen Epoch of Reionization Array (HERA)…

Instrumentation and Methods for Astrophysics · Physics 2019-06-19 Adam E. Lanman , Jonathan C. Pober

Implicit inference of the reionization history with higher-order statistics of the 21-cm signal

The Epoch of Reionization (EoR), when the first luminous sources ionised the intergalactic medium, represents a new frontier in cosmology. The Square Kilometre Array Observatory (SKAO) will offer unprecedented insights into this era through…

Cosmology and Nongalactic Astrophysics · Physics 2026-05-20 Nicolas Cerardi , Sambit K. Giri , Michele Bianco , Davide Piras , Emmanuel de Salis , Massimo De Santis , Merve Selcuk-Simsek , Philipp Denzel , Kelley M. Hess , M. Carmen Toribio , Franz Kirsten , Hatem Ghorbel

The Hydrogen Epoch of Reionization Array (HERA). Improvement of the antenna response with a matching network and scientific impacts

The Hydrogen Epoch of Reionization Array (HERA) is a new powerful radio-telescope, dedicated to the study of the early universe. Its main goal is to characterise the period of the universe where the first galaxies and stars started to form,…

Instrumentation and Methods for Astrophysics · Physics 2016-06-29 Nicolas Fagnoni , Eloy de Lera Acedo

Quantifying Density-Ionization Correlations with the 21cm Power Spectrum

The Epoch of Reionization (EoR)---when neutral hydrogen in the intergalactic medium was systematically ionized---is a period in our Universe's history that is currently poorly understood. However, a key prediction of most models is a…

Cosmology and Nongalactic Astrophysics · Physics 2021-05-25 Michael Pagano , Adrian Liu

Investigating Mutual Coupling in the Hydrogen Epoch of Reionization Array and Mitigating its Effects on the 21-cm Power Spectrum

Interferometric experiments designed to detect the highly redshifted 21-cm signal from neutral hydrogen are producing increasingly stringent constraints on the 21-cm power spectrum, but some k-modes remain systematics-dominated. Mutual…

Cosmology and Nongalactic Astrophysics · Physics 2024-06-14 E. Rath , R. Pascua , A. T. Josaitis , A. Ewall-Wice , N. Fagnoni , E. de Lera Acedo , Z. E. Martinot , Z. Abdurashidova , T. Adams , J. E. Aguirre , R. Baartman , A. P. Beardsley , L. M. Berkhout , G. Bernardi , T. S. Billings , J. D. Bowman , P. Bull , J. Burba , R. Byrne , S. Carey , K. -F. Chen , S. Choudhuri , T. Cox , D. R. DeBoer , M. Dexter , J. S. Dillon , S. Dynes , N. Eksteen , J. Ely , R. Fritz , S. R. Furlanetto , K. Gale-Sides , H. Garsden , B. K. Gehlot , A. Ghosh , A. Gorce , D. Gorthi , Z. Halday , B. J. Hazelton , J. N. Hewitt , J. Hickish , T. Huang , D. C. Jacobs , N. S. Kern , J. Kerrigan , P. Kittiwisit , M. Kolopanis , A. Lanman , A. Liu , Y. -Z. Ma , D. H. E. MacMahon , L. Malan , C. Malgas , K. Malgas , B. Marero , L. McBride , A. Mesinger , N. Mohamed-Hinds , M. Molewa , M. F. Morales , S. G. Murray , B. Nikolic , H. Nuwegeld , A. R. Parsons , N. Patra , P. La Plante , Y. Qin , N. Razavi-Ghods , D. Riley , J. Robnett , K. Rosie , M. G. Santos , P. Sims , S. Singh , D. Storer , H. Swarts , J. Tan , M. J. Wilensky , P. K. G. Williams , P. van Wyngaarden , H. Zheng

Search for the Epoch of Reionisation with HERA: Upper Limits on the Closure Phase Delay Power Spectrum

Radio interferometers aiming to measure the power spectrum of the redshifted 21 cm line during the Epoch of Reionisation (EoR) need to achieve an unprecedented dynamic range to separate the weak signal from overwhelming foreground…

Cosmology and Nongalactic Astrophysics · Physics 2023-07-12 Pascal M. Keller , Bojan Nikolic , Nithyanandan Thyagarajan , Chris L. Carilli , Gianni Bernardi , Ntsikelelo Charles , Landman Bester , Oleg M. Smirnov , Nicholas S. Kern , Joshua S. Dillon , Bryna J. Hazelton , Miguel F. Morales , Daniel C. Jacobs , Aaron R. Parsons , Zara Abdurashidova , Tyrone Adams , James E. Aguirre , Paul Alexander , Zaki S. Ali , Rushelle Baartman , Yanga Balfour , Adam P. Beardsley , Tashalee S. Billings , Judd D. Bowman , Richard F. Bradley , Philip Bull , Jacob Burba , Steven Carey , Carina Cheng , David R. DeBoer , Eloy de Lera Acedo , Matt Dexter , Nico Eksteen , John Ely , Aaron Ewall-Wice , Nicolas Fagnoni , Randall Fritz , Steven R. Furlanetto , Kingsley Gale-Sides , Brian Glendenning , Deepthi Gorthi , Bradley Greig , Jasper Grobbelaar , Ziyaad Halday , Jacqueline N. Hewitt , Jack Hickish , Austin Julius , MacCalvin Kariseb , Joshua Kerrigan , Piyanat Kittiwisit , Saul A. Kohn , Matthew Kolopanis , Adam Lanman , Paul La Plante , Adrian Liu , Anita Loots , Yin-Zhe Ma , David Harold Edward MacMahon , Lourence Malan , Cresshim Malgas , Keith Malgas , Bradley Marero , Zachary E. Martinot , Andrei Mesinger , Mathakane Molewa , Tshegofalang Mosiane , Steven G. Murray , Abraham R. Neben , Hans Nuwegeld , Robert Pascua , Nipanjana Patra , Samantha Pieterse , Jonathan C. Pober , Nima Razavi-Ghods , James Robnett , Kathryn Rosie , Mario G. Santos , Peter Sims , Craig Smith , Hilton Swarts , Pieter Van Wyngaarden , Peter K. G. Williams , Haoxuan Zheng

Improving the Epoch of Reionization Power Spectrum Results from Murchison Widefield Array Season 1 Observations

Measurements of 21 cm Epoch of Reionization (EoR) structure are subject to systematics originating from both the analysis and the observation conditions. Using 2013 data from the Murchison Widefield Array (MWA), we show the importance of…

Instrumentation and Methods for Astrophysics · Physics 2019-10-10 N. Barry , M. Wilensky , C. M. Trott , B. Pindor , A. P. Beardsley , B. J. Hazelton , I. S. Sullivan , M. F. Morales , J. C. Pober , J. Line , B. Greig , R. Byrne , A. Lanman , W. Li , C. H. Jordan , R. C. Joseph , B. McKinley , M. Rahimi , S. Yoshiura , J. D. Bowman , B. M. Gaensler , J. N. Hewitt , D. C. Jacobs , D. A. Mitchell , N. Udaya Shankar , S. K. Sethi , R. Subrahmanyan , S. J. Tingay , R. L. Webster , J. S. B. Wyithe