Journal article
Validation of the HERA Phase i Epoch of Reionization 21 cm Power Spectrum Software Pipeline
JE Aguirre, SG Murray, R Pascua, ZE Martinot, J Burba, JS Dillon, DC Jacobs, NS Kern, P Kittiwisit, M Kolopanis, A Lanman, A Liu, L Whitler, Z Abdurashidova, P Alexander, ZS Ali, Y Balfour, AP Beardsley, G Bernardi, TS Billings Show all
Astrophysical Journal | Published : 2022
Abstract
We describe the validation of the HERA Phase I software pipeline by a series of modular tests, building up to an end-to-end simulation. The philosophy of this approach is to validate the software and algorithms used in the Phase I upper-limit analysis on wholly synthetic data satisfying the assumptions of that analysis, not addressing whether the actual data meet these assumptions. We discuss the organization of this validation approach, the specific modular tests performed, and the construction of the end-to-end simulations. We explicitly discuss the limitations in scope of the current simulation effort. With mock visibility data generated from a known analytic power spectrum and a wide ran..
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Grants
Awarded by Horizon 2020 Framework Programme
Funding Acknowledgements
This material is based upon work supported by the National Science Foundation under grant Nos. 1636646 and 1836019 and institutional support from the HERA collaboration partners. This research is funded in part by the Gordon and Betty Moore Foundation. HERA is hosted by the South African Radio Astronomy Observatory, which is a facility of the National Research Foundation, an agency of the Department of Science and Innovation. Parts of this research were supported by the Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D), through project number CE170100013. J.E.A. acknowledges funding from NSF CAREER grant AST-1455151. G.B. acknowledges funding from the INAF PRIN-SKA 2017 project 1.05.01.88.04 (FORECaST), support from the Ministero degli Affari Esteri della Cooperazione Internazionale-Direzione Generale per la Promozione del Sistema Paese Progetto di Grande Rilevanza ZA18GR02 and the National Research Foundation of South Africa (grant No. 113121) as part of the ISARP RADIOSKY2020 Joint Research Scheme, from the Royal Society and the Newton Fund under grant NA150184 and from the National Research Foundation of South Africa (grant No. 103424). P.B. acknowledges funding for part of this research from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation program (grant agreement No. 948764) and from STFC grant ST/T000341/1. J.S.D. gratefully acknowledges the support of the NSF AAPF award #1701536. N.K. acknowledges support from the MIT Pappalardo fellowship. A. Liu acknowledges support from the New Frontiers in Research Fund Exploration grant program, the Canadian Institute for Advanced Research (CIFAR) Azrieli Global Scholars program, a Natural Sciences and Engineering Research Council of Canada (NSERC) Discovery Grant and a Discovery Launch Supplement, the Sloan Research Fellowship, and the William Dawson Scholarship at McGill. M.G.S. acknowledges support from the South African Square Kilometre Array Project and National Research Foundation (grant No. 84156).