Related papers
Related papers: Developing a Real Time Processing System for HERA
200 papers
As current- and next-generation astronomical instruments come online, they will generate an unprecedented deluge of data. Analyzing these data in real time presents unique conceptual and computational challenges, and their long-term storage…
Instrumentation and Methods for Astrophysics · Physics
2021-10-04
Paul La Plante , Peter K. G. Williams , Matthew Kolopanis , Joshua S. Dillon , Adam P. Beardsley , Nicholas S. Kern , Michael Wilensky , Zaki S. Ali , Zara Abdurashidova , James E. Aguirre , Paul Alexander , Yanga Balfour , Gianni Bernardi , Tashalee S. Billings , Judd D. Bowman , Richard F. Bradley , Phil Bull , Jacob Burba , Steve Carey , Chris L. Carilli , Carina Cheng , David R. DeBoer , Matt Dexter , Eloy de Lera Acedo , John Ely , Aaron Ewall-Wice , Nicolas Fagnoni , Randall Fritz , Steven R. Furlanetto , Kingsley Gale-Sides , Brian Glendenning , Deepthi Gorthi , Bradley Greig , Jaspar Grobbelaar , Ziyaad Halday , Bryna J. Hazelton , Jacqueline N. Hewitt , Jack Hickish , Daniel C. Jacobs , Austin Julius , Joshua Kerrigan , Piyanat Kittiwisit , Saul A. Kohn , Adam Lanman , 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 Murray , Abraham R. Neben , Bojan Nikolic , Aaron R. Parsons , Robert Pascua , Nipanjana Patra , Samantha Pieterse , Jonathan C. Pober , Nima Razavi-Ghods , Jon Ringuette , James Robnett , Kathryn Rosie , Mario G. Santos , Peter Sims , Craig Smith , Angelo Syce , Nithyanandan Thyagarajan , Haoxuan Zheng
The Hydrogen Epoch of Reionization Array (HERA) is a staged experiment to measure 21 cm emission from the primordial intergalactic medium (IGM) throughout cosmic reionization ($z=6-12$), and to explore earlier epochs of our Cosmic Dawn…
Instrumentation and Methods for Astrophysics · Physics
2017-03-08
David R. DeBoer , Aaron R. Parsons , James E. Aguirre , Paul Alexander , Zaki S. Ali , Adam P. Beardsley , Gianni Bernardi , Judd D. Bowman , Richard F. Bradley , Chris L. Carilli , Carina Cheng , Eloy de Lera Acedo , Joshua S. Dillon , Aaron Ewall-Wice , Gcobisa Fadana , Nicolas Fagnoni , Randall Fritz , Steve R. Furlanetto , Brian Glendenning , Bradley Greig , Jasper Grobbelaar , Bryna J. Hazelton , Jacqueline N. Hewitt , Jack Hickish , Daniel C. Jacobs , Austin Julius , MacCalvin Kariseb , Saul A. Kohn , Telalo Lekalake , Adrian Liu , Anita Loots , David MacMahon , Lourence Malan , Cresshim Malgas , Matthys Maree , Nathan Mathison , Eunice Matsetela , Andrei Mesinger , Miguel F. Morales , Abraham R. Neben , Nipanjana Patra , Samantha Pieterse , Jonathan C. Pober , 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
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
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
In 21 cm cosmology, precision calibration is key to the separation of the neutral hydrogen signal from very bright but spectrally-smooth astrophysical foregrounds. The Hydrogen Epoch of Reionization Array (HERA), an interferometer…
Instrumentation and Methods for Astrophysics · Physics
2020-11-05
Joshua S. Dillon , Max Lee , Zaki S. Ali , Aaron R. Parsons , Naomi Orosz , Chuneeta Devi Nunhokee , Paul La Plante , Adam P. Beardsley , Nicholas S. Kern , Zara Abdurashidova , James E. Aguirre , Paul Alexander , Yanga Balfour , Gianni Bernardi , Tashalee S. Billings , Judd D. Bowman , Richard F. Bradley , Phil Bull , Jacob Burba , Steve Carey , Chris L. Carilli , Carina Cheng , David R. DeBoer , Matt Dexter , Eloy de Lera Acedo , 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 , Joshua Kerrigan , Piyanat Kittiwisit , Saul A. Kohn , Matthew Kolopanis , Adam Lanman , Telalo Lekalake , David Lewis , Adrian Liu , Yin-Zhe Ma , David MacMahon , Lourence Malan , Cresshim Malgas , Matthys Maree , Zachary E. Martinot , Eunice Matsetela , Andrei Mesinger , Mathakane Molewa , Miguel F. Morales , Tshegofalang Mosiane , Steven Murray , Abraham R. Neben , Bojan Nikolic , Robert Pascua , Nipanjana Patra , Samantha Pieterse , Jonathan C. Pober , Nima Razavi-Ghods , Jon Ringuette , James Robnett , Kathryn Rosie , Mario G. Santos , Peter Sims , Craig Smith , Angelo Syce , Max Tegmark , Nithyanandan Thyagarajan , Peter K. G. Williams , Haoxuan Zheng
This paper presents the design and deployment of the Hydrogen Epoch of Reionization Array (HERA) phase II system. HERA is designed as a staged experiment targeting 21 cm emission measurements of the Epoch of Reionization. First results from…
Instrumentation and Methods for Astrophysics · Physics
2024-04-25
Lindsay M. Berkhout , Daniel C. Jacobs , Zuhra Abdurashidova , Tyrone Adams , James E. Aguirre , Paul Alexander , Zaki S. Ali , Rushelle Baartman , Yanga Balfour , Adam P. Beardsley , Gianni Bernardi , Tashalee S. Billings , Judd D. Bowman , Richard F. Bradley , Philip Bull , Jacob Burba , Steven Carey , Chris L. Carilli , Kai-Feng Chen , Carina Cheng , Samir Choudhuri , David R. DeBoer , Eloy de Lera Acedo , Matt Dexter , Joshua S. Dillon , Scott Dynes , Nico Eksteen , John Ely , Aaron Ewall-Wice , Nicolas Fagnoni , Randall Fritz , Steven R. Furlanetto , Kingsley Gale-Sides , Hugh Garsden , Bharat Kumar Gehlot , Abhik Ghosh , Brian Glendenning , Adelie Gorce , Deepthi Gorthi , Bradley Greig , Jasper Grobbelaar , Ziyaad Halday , Bryna J. Hazelton , Jacqueline N. Hewitt , Jack Hickish , Tian Huang , Alec Josaitis , Austin Julius , MacCalvin Kariseb , Nicholas S. Kern , Joshua Kerrigan , Honggeun Kim , 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 , Miguel F. Morales , Tshegofalang Mosiane , Steven G. Murray , Abraham R. Neben , Bojan Nikolic , Chuneeta Devi Nunhokee , Hans Nuwegeld , Aaron R. Parsons , Robert Pascua , Nipanjana Patra , Samantha Pieterse , Yuxiang Qin , Eleanor Rath , Nima Razavi-Ghods , Daniel Riley , James Robnett , Kathryn Rosie , Mario G. Santos , Peter Sims , Saurabh Singh , Dara Storer , Hilton Swarts , Jianrong Tan , Nithyanandan Thyagarajan , Pieter van Wyngaarden , Peter K. G. Williams , Haoxuan Zheng , Zhilei Xu
The Hydrogen Epoch of Reionization Array (HERA) is a radio interferometer aiming to detect the power spectrum of 21 cm fluctuations from neutral hydrogen from the Epoch of Reionization (EOR). Drawing on lessons from the Murchison Widefield…
Instrumentation and Methods for Astrophysics · Physics
2016-12-08
Abraham R. Neben , Richard F. Bradley , Jacqueline N. Hewitt , David R. DeBoer , Aaron R. Parsons , James E. Aguirre , Zaki S. Ali , Carina Cheng , Aaron Ewall-Wice , Nipanjana Patra , Nithyanandan Thyagarajan , Judd Bowman , Roger Dickenson , Joshua S. Dillon , Phillip Doolittle , Dennis Egan , Mike Hedrick , Daniel C. Jacobs , Saul A. Kohn , Patricia J. Klima , Kavilan Moodley , Benjamin R. B. Saliwanchik , Patrick Schaffner , John Shelton , H. A. Taylor , Rusty Taylor , Max Tegmark , Butch Wirt , Haoxuan Zheng
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
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
The Hydrogen Intensity and Real-time Analysis eXperiment (HIRAX) is a radio interferometer array currently in development, with an initial 256-element array to be deployed at the South African Radio Astronomy Observatory (SARAO) Square…
Instrumentation and Methods for Astrophysics · Physics
2022-01-19
Devin Crichton , Moumita Aich , Adam Amara , Kevin Bandura , Bruce A. Bassett , Carlos Bengaly , Pascale Berner , Shruti Bhatporia , Martin Bucher , Tzu-Ching Chang , H. Cynthia Chiang , Jean-Francois Cliche , Carolyn Crichton , Romeel Dave , Dirk I. L. de Villiers , Matt A. Dobbs , Aaron M. Ewall-Wice , Scott Eyono , Christopher Finlay , Sindhu Gaddam , Ken Ganga , Kevin G. Gayley , Kit Gerodias , Tim Gibbon , Austin Gumba , Neeraj Gupta , Maile Harris , Heiko Heilgendorf , Matt Hilton , Adam D. Hincks , Pascal Hitz , Mona Jalilvand , Roufurd Julie , Zahra Kader , Joseph Kania , Dionysios Karagiannis , Aris Karastergiou , Kabelo Kesebonye , Piyanat Kittiwisit , Jean-Paul Kneib , Kenda Knowles , Emily R. Kuhn , Martin Kunz , Roy Maartens , Vincent MacKay , Stuart MacPherson , Christian Monstein , Kavilan Moodley , V. Mugundhan , Warren Naidoo , Arun Naidu , Laura B. Newburgh , Viraj Nistane , Amanda Di Nitto , Deniz Ölçek , Xinyu Pan , Sourabh Paul , Jeffrey B. Peterson , Elizabeth Pieters , Carla Pieterse , Aritha Pillay , Anna R. Polish , Liantsoa Randrianjanahary , Alexandre Refregier , Andre Renard , Edwin Retana-Montenegro , Ian H. Rout , Cyndie Russeeawon , Alireza Vafaei Sadr , Benjamin R. B. Saliwanchik , Ajith Sampath , Pranav Sanghavi , Mario G. Santos , Onkabetse Sengate , J. Richard Shaw , Jonathan L. Sievers , Oleg M. Smirnov , Kendrick M. Smith , Ulrich Armel Mbou Sob , Raghunathan Srianand , Pieter Stronkhorst , Dhaneshwar D. Sunder , Simon Tartakovsky , Russ Taylor , Peter Timbie , Emma E. Tolley , Junaid Townsend , Will Tyndall , Cornelius Ungerer , Jacques van Dyk , Gary van Vuuren , Keith Vanderlinde , Thierry Viant , Anthony Walters , Jingying Wang , Amanda Weltman , Patrick Woudt , Dallas Wulf , Anatoly Zavyalov , Zheng Zhang
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
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}
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
Realizing the potential of 21 cm tomography to statistically probe the intergalactic medium before and during the Epoch of Reionization requires large telescopes and precise control of systematics. Next-generation telescopes are now being…
Instrumentation and Methods for Astrophysics · Physics
2016-08-17
Joshua S. Dillon , Aaron R. Parsons
We present a baseline sensitivity analysis of the Hydrogen Epoch of Reionization Array (HERA) and its build-out stages to one-point statistics (variance, skewness, and kurtosis) of redshifted 21 cm intensity fluctuation from the Epoch of…
Cosmology and Nongalactic Astrophysics · Physics
2018-04-26
Piyanat Kittiwisit , Judd D. Bowman , Daniel C. Jacobs , Adam P. Beardsley , Nithyanandan Thyagarajan
Construction was completed during summer 2013 on the Telescope Array RAdar (TARA) bi-static radar observatory for Ultra-High Energy Cosmic Rays (UHECR). TARA is co-located with the Telescope Array, the largest "conventional" cosmic ray…
Instrumentation and Methods for Astrophysics · Physics
2014-09-15
R. Abbasi , M. Abou Bakr Othman , C. Allen , L. Beard , J. Belz , D. Besson , M. Byrne , B. Farhang-Boroujeny , A. Gardner , W. H. Gillman , W. Hanlon , J. Hanson , C. Jayanthmurthy , S. Kunwar , S. L. Larson , I. Myers , S. Prohyra , K. Ratzlaff , P. Sokolsky , H. Takai , G. B. Thomson , D. Von Maluski
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
Motivated by the desire for wide-field images with well-defined statistical properties for 21cm cosmology, we implement an optimal mapping pipeline that computes a maximum likelihood estimator for the sky using the interferometric…
Cosmology and Nongalactic Astrophysics · Physics
2022-10-28
Zhilei Xu , Jacqueline N. Hewitt , Kai-Feng Chen , Honggeun Kim , Joshua S. Dillon , Nicholas S. Kern , Miguel F. Morales , Bryna J. Hazelton , Ruby Byrne , Nicolas Fagnoni , Eloy de Lera Acedo , Zara Abdurashidova , Tyrone Adams , James E. Aguirre , Paul Alexander , Zaki S. Ali , Rushelle Baartman , Yanga Balfour , Adam P. Beardsley , Gianni Bernardi , Tashalee S. Billings , Judd D. Bowman , Richard F. Bradley , Philip Bull , Jacob Burba , Steven Carey , Chris L. Carilli , Carina Cheng , David R. DeBoer , Matt Dexter , Nico Eksteen , John Ely , Aaron Ewall-Wice , Randall Fritz , Steven R. Furlanetto , Kingsley Gale-Sides , Brian Glendenning , Deepthi Gorthi , Bradley Greig , Jasper Grobbelaar , Ziyaad Halday , Jack Hickish , Daniel C. Jacobs , 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 , Bojan Nikolic , Hans Nuwegeld , Aaron R. Parsons , Nipanjana Patra , Samantha Pieterse , Jonathan C. Pober , Nima Razavi-Ghods , James Robnett , Kathryn Rosie , Peter Sims , Craig Smith , Hilton Swarts , Nithyanandan Thyagarajan , Pieter Van Van Wyngaarden , Peter K. G. Williams , Haoxuan Zheng
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
Observations with radio arrays that target the 21-cm signal originating from the early Universe suffer from a variety of systematic effects. An important class of these are reflections and spurious couplings between antennas. We apply a…
Instrumentation and Methods for Astrophysics · Physics
2025-03-06
Geoff G. Murphy , Philip Bull , Mario G. Santos , Zara Abdurashidova , Tyrone Adams , James E. Aguirre , Paul Alexander , Zaki S. Ali , Rushelle Baartman , Yanga Balfour , Adam P. Beardsley , Gianni Bernardi , Tashalee Billings , Judd D. Bowman , Richard F. Bradley , Jacob Burba , Christopher Cain , Steven Carey , Chris L. Carilli , Carina Cheng , David R. DeBoer , Eloy de Lera Acedo , Matt Dexter , Joshua S. Dillon , 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 , Bryna J. Hazelton , Jacqueline N. Hewitt , Jack Hickish , Daniel C. Jacobs , Austin Julius , MacCalvin Kariseb , Nicholas S. Kern , Joshua Kerrigan , Piyanat Kittiwisit , Saul A. Kohn , Matthew Kolopanis , Adam Lanman , Paul La Plante , Adrian Liu , Anita Loots , David Harold Edward MacMahon , Lourence Malan , Cresshim Malgas , Keith Malgas , Bradley Marero , Zachary E. Martinot , Andrei Mesinger , Mathakane Molewa , Miguel F. Morales , Tshegofalang Mosiane , Steven G. Murray , Abraham R. Neben , Bojan Nikolic , Hans Nuwegeld , Aaron R. Parsons , Nipanjana Patra , Samantha Pieterse , Nima Razavi-Ghods , James Robnett , Kathryn Rosie , Peter Sims , Jackson Sipple , Craig Smith , Hilton Swarts , Nithyanandan Thyagarajan , Pieter van Wyngaarden , Peter K. G. Williams , Haoxuan Zheng