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dc.contributor.authorBeardsley, A.
dc.contributor.authorHazelton, B.
dc.contributor.authorSullivan, I.
dc.contributor.authorCarroll, P.
dc.contributor.authorBarry, N.
dc.contributor.authorRahimi, M.
dc.contributor.authorPindor, B.
dc.contributor.authorTrott, Cathryn
dc.contributor.authorLine, J.
dc.contributor.authorJacobs, D.
dc.contributor.authorMorales, M.
dc.contributor.authorPober, J.
dc.contributor.authorBernardi, G.
dc.contributor.authorBowman, J.
dc.contributor.authorBusch, M.
dc.contributor.authorBriggs, F.
dc.contributor.authorCappallo, R.
dc.contributor.authorCorey, B.
dc.contributor.authorOliveira-Costa, A.
dc.contributor.authorDillon, J.
dc.contributor.authorEmrich, David
dc.contributor.authorEwall-Wice, A.
dc.contributor.authorFeng, L.
dc.contributor.authorGaensler, B.
dc.contributor.authorGoeke, R.
dc.contributor.authorGreenhill, L.
dc.contributor.authorHewitt, J.
dc.contributor.authorHurley-Walker, Natasha
dc.contributor.authorJohnston-Hollitt, M.
dc.contributor.authorKaplan, D.
dc.contributor.authorKasper, J.
dc.contributor.authorKim, H.
dc.contributor.authorKratzenberg, E.
dc.contributor.authorLenc, E.
dc.contributor.authorLoeb, A.
dc.contributor.authorLonsdale, C.
dc.contributor.authorLynch, Mervyn
dc.contributor.authorMcKinley, B.
dc.contributor.authorMcWhirter, S.
dc.contributor.authorMitchell, D.
dc.contributor.authorMorgan, E.
dc.contributor.authorNeben, A.
dc.contributor.authorThyagarajan, N.
dc.contributor.authorOberoi, D.
dc.contributor.authorOffringa, A.
dc.contributor.authorOrd, S.
dc.contributor.authorPaul, S.
dc.contributor.authorPrabu, T.
dc.contributor.authorProcopio, P.
dc.contributor.authorRiding, J.
dc.contributor.authorRogers, A.
dc.contributor.authorRoshi, A.
dc.contributor.authorShankar, N.
dc.contributor.authorSethi, S.
dc.contributor.authorSrivani, K.
dc.contributor.authorSubrahmanyan, R.
dc.contributor.authorTegmark, M.
dc.contributor.authorTingay, Steven
dc.contributor.authorWaterson, M.
dc.contributor.authorWayth, Randall
dc.contributor.authorWebster, R.
dc.contributor.authorWhitney, A.
dc.contributor.authorWilliams, Andrew
dc.contributor.authorWilliams, C.
dc.contributor.authorWu, C.
dc.contributor.authorWyithe, J.
dc.date.accessioned2017-01-30T12:27:18Z
dc.date.available2017-01-30T12:27:18Z
dc.date.created2017-01-04T19:30:19Z
dc.date.issued2016
dc.identifier.citationBeardsley, A. and Hazelton, B. and Sullivan, I. and Carroll, P. and Barry, N. and Rahimi, M. and Pindor, B. et al. 2016. First season MWA EOR power spectrum results at redshift 7. Astrophysical Journal. 833 (1): Article 102.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/21766
dc.identifier.doi10.3847/1538-4357/833/1/102
dc.description.abstract

The Murchison Widefield Array (MWA) has collected hundreds of hours of Epoch of Reionization (EoR) data and now faces the challenge of overcoming foreground and systematic contamination to reduce the data to a cosmological measurement. We introduce several novel analysis techniques, such as cable reflection calibration, hyper-resolution gridding kernels, diffuse foreground model subtraction, and quality control methods. Each change to the analysis pipeline is tested against a two-dimensional power spectrum figure of merit to demonstrate improvement. We incorporate the new techniques into a deep integration of 32 hours of MWA data. This data set is used to place a systematic-limited upper limit on the cosmological power spectrum of ∆2 ≤ 2.7×104 mK2 at k =0.27 h Mpc-1 and z = 7.1, consistent with other published limits, and a modest improvement (factor of 1.4) over previous MWA results. From this deep analysis, we have identified a list of improvements to be made to our EoR data analysis strategies. These improvements will be implemented in the future and detailed in upcoming publications.

dc.publisherInstitute of Physics Publishing
dc.titleFirst season MWA EoR power spectrum results at redshift 7
dc.typeJournal Article
dcterms.source.volume833
dcterms.source.number1
dcterms.source.issn0004-637X
dcterms.source.titleAstrophysical Journal
curtin.note

This is an author-created, un-copy edited version of an article accepted for publication in Astrophysical Journal. The publisher is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at http://doi.org/10.3847/1538-4357/833/1/102

curtin.departmentDepartment of Electrical and Computer Engineering
curtin.accessStatusOpen access


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