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2024PASP..136d5002B - Publ. Astron. Soc. Pac., 136, part no 4, 5002 (2024/April-0)

Hydrogen Epoch of Reionization Array (HERA) Phase II Deployment and Commissioning.

BERKHOUT L.M., JACOBS D.C., ABDURASHIDOVA Z., ADAMS T., AGUIRRE J.E., ALEXANDER P., ALI Z.S., BAARTMAN R., BALFOUR Y., BEARDSLEY A.P., BERNARDI G., BILLINGS T.S., BOWMAN J.D., BRADLEY R.F., BULL P., BURBA J., BYRNE R., CAREY S., CARILLI C.L., CHEN K.-F., CHENG C., CHOUDHURI S., DEBOER D.R., DE LERA ACEDO E., DEXTER M., DILLON J.S., DYNES S., EKSTEEN N., ELY J., EWALL-WICE A., FAGNONI N., FRITZ R., FURLANETTO S.R., GALE-SIDES K., GARSDEN H., GEHLOT B.K., GHOSH A., GLENDENNING B., GORCE A., GORTHI D., GREIG B., GROBBELAAR J., HALDAY Z., HAZELTON B.J., HEWITT J.N., HICKISH J., HUANG T., JOSAITIS A., JULIUS A., KARISEB M., KERN N.S., KERRIGAN J., KIM H., KITTIWISIT P., KOHN S.A., KOLOPANIS M., LANMAN A., LA PLANTE P., LIU A., LOOTS A., MA Y.-Z., MacMAHON D.H.E., MALAN L., MALGAS C., MALGAS K., MARERO B., MARTINOT Z.E., MESINGER A., MOLEWA M., MORALES M.F., MOSIANE T., MURRAY S.G., NEBEN A.R., NIKOLIC B., NUNHOKEE C.D., NUWEGELD H., PARSONS A.R., PASCUA R., PATRA N., PIETERSE S., QIN Y., RATH E., RAZAVI-GHODS N., RILEY D., ROBNETT J., ROSIE K., SANTOS M.G., SIMS P., SINGH S., STORER D., SWARTS H., TAN J., THYAGARAJAN N., VAN WYNGAARDEN P., WILLIAMS P.K.G., ZHENG H. and XU Z.

Abstract (from CDS):

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.

Abstract Copyright: © 2024. The Author(s). Published by IOP Publishing Ltd on behalf of the Astronomical Society of the Pacific (ASP). All rights reserved

Journal keyword(s): Early universe - Reionization - Radio interferometers - Radio interferometry - Radio telescopes

Simbad objects: 2

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