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dc.contributor.authorLiu, Adrian Chi-Yan
dc.contributor.authorTegmark, Max Erik
dc.contributor.authorMorrison, Scott D.
dc.contributor.authorLutomirski, Andrew Michael
dc.contributor.authorZaldarriaga, Matias, 1971-
dc.date.accessioned2014-08-05T13:36:02Z
dc.date.available2014-08-05T13:36:02Z
dc.date.issued2010-10
dc.date.submitted2010-06
dc.identifier.issn00358711
dc.identifier.urihttp://hdl.handle.net/1721.1/88532
dc.description.abstractGrowing interest in 21-cm tomography has led to the design and construction of broad-band radio interferometers with low noise, moderate angular resolution, high spectral resolution and wide fields of view. With characteristics somewhat different from traditional radio instruments, these interferometers may require new calibration techniques in order to reach their design sensitivities. Self-calibration or redundant calibration techniques that allow an instrument to be calibrated off complicated sky emission structures are ideal. In particular, the large number of redundant baselines possessed by these new instruments makes redundant calibration an especially attractive option. In this paper, we explore the errors and biases in existing redundant calibration schemes through simulations, and show how statistical biases can be eliminated. We also develop a general calibration formalism that includes both redundant baseline methods and basic point source calibration methods as special cases, and show how slight deviations from perfect redundancy and coplanarity can be taken into account.en_US
dc.description.sponsorshipNational Science Foundation (U.S.) (NSF grant AST-0506556)en_US
dc.description.sponsorshipNational Science Foundation (U.S.) (NSF grant AST-0907969)en_US
dc.description.sponsorshipNational Science Foundation (U.S.) (NSF grant AST-0708534)en_US
dc.description.sponsorshipNational Science Foundation (U.S.) (NSF grant AST-6920223)en_US
dc.description.sponsorshipNational Science Foundation (U.S.) (NSF grant PHY-0855425)en_US
dc.description.sponsorshipUnited States. National Aeronautics and Space Administration (NASA NN-6056J406)en_US
dc.description.sponsorshipDavid & Lucile Packard Foundationen_US
dc.description.sponsorshipResearch Corporationen_US
dc.description.sponsorshipJohn D. and Catherine T. MacArthur Foundationen_US
dc.language.isoen_US
dc.publisherOxford University Press on behalf of The Royal Astronomical Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1111/j.1365-2966.2010.17174.xen_US
dc.rightsCreative Commons Attribution-Noncommercial-Share Alikeen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/en_US
dc.sourcearXiven_US
dc.titlePrecision calibration of radio interferometers using redundant baselinesen_US
dc.typeArticleen_US
dc.identifier.citationLiu, Adrian, Max Tegmark, Scott Morrison, Andrew Lutomirski, and Matias Zaldarriaga. “Precision Calibration of Radio Interferometers Using Redundant Baselines.” Monthly Notices of the Royal Astronomical Society 408, no. 2 (July 21, 2010): 1029–1050.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Physicsen_US
dc.contributor.departmentMIT Kavli Institute for Astrophysics and Space Researchen_US
dc.contributor.mitauthorLiu, Adrian Chi-Yanen_US
dc.contributor.mitauthorTegmark, Max Eriken_US
dc.contributor.mitauthorMorrison, Scott D.en_US
dc.contributor.mitauthorLutomirski, Andrew Michaelen_US
dc.relation.journalMonthly Notices of the Royal Astronomical Societyen_US
dc.eprint.versionOriginal manuscripten_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/NonPeerRevieweden_US
dspace.orderedauthorsLiu, Adrian; Tegmark, Max; Morrison, Scott; Lutomirski, Andrew; Zaldarriaga, Matiasen_US
dc.identifier.orcidhttps://orcid.org/0000-0001-7670-7190
dc.identifier.orcidhttps://orcid.org/0000-0001-6876-0928
dspace.mitauthor.errortrue
mit.licenseOPEN_ACCESS_POLICYen_US


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