Hydrogen Epoch of Reionization Array (HERA) Phase II Deployment and Commissioning
Date Issued
2024
Author(s)
Berkhout, Lindsay M.
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Jacobs, Daniel C.
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Abdurashidova, Zuhra
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Adams, Tyrone
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Aguirre, James E.
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Alexander, Paul
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Ali, Zaki S.
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Baartman, Rushelle
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Balfour, Yanga
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Beardsley, Adam P.
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•
Billings, Tashalee S.
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Bowman, Judd D.
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Bradley, Richard F.
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Burba, Jacob
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Byrne, Ruby
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Carey, Steven
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Carilli, Chris L.
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Chen, Kai Feng
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Cheng, Carina
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Choudhuri, Samir
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DeBoer, David R.
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de Lera Acedo, Eloy
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Dexter, Matt
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Dillon, Joshua S.
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Dynes, Scott
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Eksteen, Nico
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Ely, John
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Ewall-Wice, Aaron
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Fagnoni, Nicolas
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Fritz, Randall
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Furlanetto, Steven R.
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Gale-Sides, Kingsley
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Garsden, Hugh
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Gehlot, Bharat Kumar
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Ghosh, Abhik
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Glendenning, Brian
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Gorce, Adelie
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Gorthi, Deepthi
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Greig, Bradley
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Grobbelaar, Jasper
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Halday, Ziyaad
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Hazelton, Bryna J.
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Hewitt, Jacqueline N.
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Hickish, Jack
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Huang, Tian
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Josaitis, Alec
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Julius, Austin
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Kariseb, MacCalvin
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Kern, Nicholas S.
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Kerrigan, Joshua
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Kim, Honggeun
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Kittiwisit, Piyanat
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Kohn, Saul A.
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Kolopanis, Matthew
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Lanman, Adam
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La Plante, Paul
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Liu, Adrian
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Loots, Anita
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Ma, Yin Zhe
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Edward MacMahon, David Harold
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Malan, Lourence
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Malgas, Cresshim
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Malgas, Keith
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Marero, Bradley
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Martinot, Zachary E.
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Molewa, Mathakane
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Morales, Miguel F.
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Mosiane, Tshegofalang
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Murray, Steven G.
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Neben, Abraham R.
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Nikolic, Bojan
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Nunhokee, Chuneeta Devi
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Nuwegeld, Hans
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Parsons, Aaron R.
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Pascua, Robert
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Patra, Nipanjana
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Pieterse, Samantha
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Qin, Yuxiang
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Rath, Eleanor
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Razavi-Ghods, Nima
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Riley, Daniel
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Robnett, James
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Rosie, Kathryn
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Santos, Mario G.
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Sims, Peter
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Singh, Saurabh
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Storer, Dara
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Swarts, Hilton
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Tan, Jianrong
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Thyagarajan, Nithyanandan
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van Wyngaarden, Pieter
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Williams, Peter K.G.
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Zheng, Haoxuan
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Xu, Zhilei
Abstract
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 the phase I array are published as of early 2022, and deployment of the phase II system is nearing completion. We describe the design of the phase II system and discuss progress on commissioning and future upgrades. As HERA is a designated Square Kilometre Array pathfinder instrument, we also show a number of “case studies” that investigate systematics seen while commissioning the phase II system, which may be of use in the design and operation of future arrays. Common pathologies are likely to manifest in similar ways across instruments, and many of these sources of contamination can be mitigated once the source is identified.
Volume
136
Issue
4
Start page
045002
Issn Identifier
0004-6280
Rights
open.access
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