First Season MWA Phase II Epoch of Reionization Power Spectrum Results at Redshift 7

Simple item page
dc.contributor.authorLi, W.en
dc.contributor.authorPober, J. C.en
dc.contributor.authorBarry, N.en
dc.contributor.authorHazelton, B. J.en
dc.contributor.authorMorales, M. F.en
dc.contributor.authorTrott, C. M.en
dc.contributor.authorLanman, A.en
dc.contributor.authorWilensky, M.en
dc.contributor.authorSullivan, I.en
dc.contributor.authorBeardsley, A. P.en
dc.contributor.authorBooler, T.en
dc.contributor.authorBowman, J. D.en
dc.contributor.authorByrne, R.en
dc.contributor.authorCrosse, B.en
dc.contributor.authorEmrich, D.en
dc.contributor.authorFranzen, T. M.O.en
dc.contributor.authorHasegawa, K.en
dc.contributor.authorHorsley, L.en
dc.contributor.authorJohnston-Hollitt, M.en
dc.contributor.authorJacobs, D. C.en
dc.contributor.authorJordan, C. H.en
dc.contributor.authorJoseph, R. C.en
dc.contributor.authorKaneuji, T.en
dc.contributor.authorKaplan, D. L.en
dc.contributor.authorKenney, D.en
dc.contributor.authorKubota, K.en
dc.contributor.authorLine, J.en
dc.contributor.authorLynch, C.en
dc.contributor.authorMcKinley, B.en
dc.contributor.authorMitchell, D. A.en
dc.contributor.authorMurray, S.en
dc.contributor.authorPallot, D.en
dc.contributor.authorPindor, B.en
dc.contributor.authorRahimi, M.en
dc.contributor.authorRiding, J.en
dc.contributor.authorSleap, G.en
dc.contributor.authorSteele, K.en
dc.contributor.authorTakahashi, K.en
dc.contributor.authorTingay, S. J.en
dc.contributor.authorWalker, M.en
dc.contributor.authorWayth, R. B.en
dc.contributor.authorWebster, R. L.en
dc.contributor.authorWilliams, A.en
dc.contributor.authorWu, C.en
dc.contributor.authorWyithe, J. S.B.en
dc.contributor.authorYoshiura, S.en
dc.contributor.authorZheng, Q.en
dc.date.accessioned2025-12-23T13:40:22Z
dc.date.available2025-12-23T13:40:22Z
dc.date.issued2019-12-20en
dc.description.abstractThe compact configuration of Phase II of the Murchison Widefield Array (MWA) consists of both a redundant subarray and pseudo-random baselines, offering unique opportunities to perform sky-model and redundant interferometric calibration. The highly redundant hexagonal cores give improved power spectrum sensitivity. In this paper, we present the analysis of nearly 40 hr of data targeting one of the MWA's epoch of reionization (EoR) fields observed in 2016. We use both improved analysis techniques presented in Barry et al. and several additional techniques developed for this work, including data quality control methods and interferometric calibration approaches. We show the EoR power spectrum limits at redshift 6.5, 6.8, and 7.1 based on our deep analysis on this 40 hr data set. These limits span a range in k-space of 0.18 h Mpc-1 < k < 1.6 h Mpc-1, with a lowest measurement of Δ2 ≤ 2.39 × 103 mK2 at k = 0.59 h Mpc-1 and z = 6.5.en
dc.description.sponsorshipW. Li J. C. Pober N. Barry B. J. Hazelton M. F. Morales C. M. Trott A. Lanman M. Wilensky I. Sullivan A. P. Beardsley T. Booler J. D. Bowman R. Byrne B. Crosse D. Emrich T. M. O. Franzen K. Hasegawa L. Horsley M. Johnston-Hollitt D. C. Jacobs C. H. Jordan R. C. Joseph T. Kaneuji D. L. Kaplan D. Kenney K. Kubota J. Line C. Lynch B. McKinley D. A. Mitchell S. Murray D. Pallot B. Pindor M. Rahimi J. Riding G. Sleap K. Steele K. Takahashi S. J. Tingay M. Walker R. B. Wayth R. L. Webster A. Williams C. Wu J. S. B. Wyithe S. Yoshiura Q. Zheng W. Li J. C. Pober N. Barry B. J. Hazelton M. F. Morales C. M. Trott A. Lanman M. Wilensky I. Sullivan A. P. Beardsley T. Booler J. D. Bowman R. Byrne B. Crosse D. Emrich T. M. O. Franzen K. Hasegawa L. Horsley M. Johnston-Hollitt D. C. Jacobs C. H. Jordan R. C. Joseph T. Kaneuji D. L. Kaplan D. Kenney K. Kubota J. Line C. Lynch B. McKinley D. A. Mitchell S. Murray D. Pallot B. Pindor M. Rahimi J. Riding G. Sleap K. Steele K. Takahashi S. J. Tingay M. Walker R. B. Wayth R. L. Webster A. Williams C. Wu J. S. B. Wyithe S. Yoshiura Q. Zheng Department of Physics, Brown University, Providence, RI 02912, USA School of Physics, The University of Melbourne, Parkville, VIC 3010, Australia ARC Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D), Australia Department of Physics, University of Washington, Seattle, WA 98195, USA University of Washington, eScience Institute, Seattle, WA 98195, USA International Centre for Radio Astronomy Research (ICRAR), Curtin University, Bentley, WA 6102, Australia School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287, USA ASTRON, Netherlands Institute for Radio Astronomy, Oude Hoogeveensedijk 4, 7991 PD, Dwingeloo, The Netherlands Kumamoto University, Japan Department of Physics, University of Wisconsin\u2013Milwaukee, Milwaukee, WI 53201, USA CSIRO Astronomy and Space Science (CASS), PO Box 76, Epping, NSW 1710, Australia International Centre for Radio Astronomy Research (ICRAR), University of Western Australia, Crawley, WA 6009, Australia Shanghai Astronomical Observatory, People\u2019s Republic of China W. Li, J. C. Pober, N. Barry, B. J. Hazelton, M. F. Morales, C. M. Trott, A. Lanman, M. Wilensky, I. Sullivan, A. P. Beardsley, T. Booler, J. D. Bowman, R. Byrne, B. Crosse, D. Emrich, T. M. O. Franzen, K. Hasegawa, L. Horsley, M. Johnston-Hollitt, D. C. Jacobs, C. H. Jordan, R. C. Joseph, T. Kaneuji, D. L. Kaplan, D. Kenney, K. Kubota, J. Line, C. Lynch, B. McKinley, D. A. Mitchell, S. Murray, D. Pallot, B. Pindor, M. Rahimi, J. Riding, G. Sleap, K. Steele, K. Takahashi, S. J. Tingay, M. Walker, R. B. Wayth, R. L. Webster, A. Williams, C. Wu, J. S. B. Wyithe, S. Yoshiura and Q. Zheng 2019-12-20 2019-12-17 16:35:18 cgi/release: Article released bin/incoming: New from .zip NSF 1613040 yes The compact configuration of Phase II of the Murchison Widefield Array (MWA) consists of both a redundant subarray and pseudo-random baselines, offering unique opportunities to perform sky-model and redundant interferometric calibration. The highly redundant hexagonal cores give improved power spectrum sensitivity. In this paper, we present the analysis of nearly 40 hr of data targeting one of the MWA\u2019s epoch of reionization (EoR) fields observed in 2016. We use both improved analysis techniques presented in Barry et al. and several additional techniques developed for this work, including data quality control methods and interferometric calibration approaches. We show the EoR power spectrum limits at redshift 6.5, 6.8, and 7.1 based on our deep analysis on this 40 hr data set. These limits span a range in k -space of 0.18 h Mpc \u22121 \uFFFDen
dc.description.statusPeer-revieweden
dc.format.extent20en
dc.identifier.issn0004-637Xen
dc.identifier.otherORCID:/0000-0001-7956-9758/work/195266031en
dc.identifier.scopus85077580203en
dc.identifier.urihttps://hdl.handle.net/1885/733796993
dc.language.isoenen
dc.rightsPublisher Copyright: © 2019. The American Astronomical Society. All rights reserved.en
dc.sourceAstrophysical Journalen
dc.titleFirst Season MWA Phase II Epoch of Reionization Power Spectrum Results at Redshift 7en
dc.typeJournal articleen
dspace.entity.typePublicationen
local.contributor.affiliationLi, W.; Brown Universityen
local.contributor.affiliationPober, J. C.; Brown Universityen
local.contributor.affiliationBarry, N.; University of Melbourneen
local.contributor.affiliationHazelton, B. J.; University of Washingtonen
local.contributor.affiliationMorales, M. F.; ARC Centre of Excellence for All-sky Astrophysicsen
local.contributor.affiliationTrott, C. M.; ARC Centre of Excellence for All-sky Astrophysicsen
local.contributor.affiliationLanman, A.; Brown Universityen
local.contributor.affiliationWilensky, M.; University of Washingtonen
local.contributor.affiliationSullivan, I.; University of Washingtonen
local.contributor.affiliationBeardsley, A. P.; Arizona State Universityen
local.contributor.affiliationBooler, T.; Curtin Universityen
local.contributor.affiliationBowman, J. D.; Arizona State Universityen
local.contributor.affiliationByrne, R.; University of Washingtonen
local.contributor.affiliationCrosse, B.; Curtin Universityen
local.contributor.affiliationEmrich, D.; Curtin Universityen
local.contributor.affiliationFranzen, T. M.O.; Curtin Universityen
local.contributor.affiliationHasegawa, K.; Kumamoto Universityen
local.contributor.affiliationHorsley, L.; Curtin Universityen
local.contributor.affiliationJohnston-Hollitt, M.; Curtin Universityen
local.contributor.affiliationJacobs, D. C.; Arizona State Universityen
local.contributor.affiliationJordan, C. H.; ARC Centre of Excellence for All-sky Astrophysicsen
local.contributor.affiliationJoseph, R. C.; ARC Centre of Excellence for All-sky Astrophysicsen
local.contributor.affiliationKaneuji, T.; Kumamoto Universityen
local.contributor.affiliationKaplan, D. L.; University of Wisconsin-Milwaukeeen
local.contributor.affiliationKenney, D.; Curtin Universityen
local.contributor.affiliationKubota, K.; Kumamoto Universityen
local.contributor.affiliationLine, J.; ARC Centre of Excellence for All-sky Astrophysicsen
local.contributor.affiliationLynch, C.; ARC Centre of Excellence for All-sky Astrophysicsen
local.contributor.affiliationMcKinley, B.; ARC Centre of Excellence for All-sky Astrophysicsen
local.contributor.affiliationMitchell, D. A.; CSIROen
local.contributor.affiliationMurray, S.; ARC Centre of Excellence for All-sky Astrophysicsen
local.contributor.affiliationPallot, D.; University of Western Australiaen
local.contributor.affiliationPindor, B.; University of Melbourneen
local.contributor.affiliationRahimi, M.; University of Melbourneen
local.contributor.affiliationRiding, J.; University of Melbourneen
local.contributor.affiliationSleap, G.; Curtin Universityen
local.contributor.affiliationSteele, K.; Curtin Universityen
local.contributor.affiliationTakahashi, K.; Kumamoto Universityen
local.contributor.affiliationTingay, S. J.; Curtin Universityen
local.contributor.affiliationWalker, M.; Curtin Universityen
local.contributor.affiliationWayth, R. B.; ARC Centre of Excellence for All-sky Astrophysicsen
local.contributor.affiliationWebster, R. L.; University of Melbourneen
local.contributor.affiliationWilliams, A.; Curtin Universityen
local.contributor.affiliationWu, C.; University of Western Australiaen
local.contributor.affiliationWyithe, J. S.B.; University of Melbourneen
local.contributor.affiliationYoshiura, S.; Kumamoto Universityen
local.contributor.affiliationZheng, Q.; CAS - Shanghai Astronomical Observatoryen
local.identifier.citationvolume887en
local.identifier.doi10.3847/1538-4357/ab55e4en
local.identifier.purebb3e1cbc-9827-4d6f-abce-ca4500ca7b03en
local.identifier.urlhttps://www.scopus.com/pages/publications/85077580203en
local.type.statusPublisheden

Downloads

Collections

ANU Research Publications

DSpace software copyright © 2002-2026 LYRASIS