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Selective dynamical imaging of interferometric data

dc.contributor.authorFarah, Joseph
dc.contributor.authorGalison, Peter
dc.contributor.authorAkiyama3, Kazunori
dc.contributor.authorBouman3, Katherine L.
dc.contributor.authorBower, Geoffrey C.
dc.contributor.authorChael, Andrew
dc.contributor.authorFuentes, Antonio
dc.contributor.authorGomez, José L.
dc.contributor.authorHonma, Mareki
dc.contributor.authorJohnson, Michael D.
dc.contributor.authorKofuj, Yutaro
dc.contributor.authorMarrone, Daniel P.
dc.contributor.authorMoriyama, Kotaro
dc.contributor.authorNarayan, Ramesh
dc.contributor.authorPesce, Dominic W.
dc.contributor.authorAlberdi, Antxon
dc.contributor.authorAlef, Walter
dc.contributor.authorAlgaba, Juan Carlos
dc.contributor.authorAnantua, Richard
dc.contributor.authorAsada, Keiichi
dc.contributor.authorAzulay, Rebecca
dc.contributor.authorBaczko, Anne-Kathrin
dc.contributor.authorBall, David
dc.contributor.authorBalokovic, Mislav
dc.contributor.authorBarret, John
dc.contributor.authorBenson, Bradford A.
dc.contributor.authorBintley, Dan
dc.contributor.authorBlackburn, Lindy
dc.contributor.authorBlundell, Raymond
dc.contributor.authorBoland, Wilfred
dc.contributor.authorBoyce, Hope
dc.contributor.authorBremer, Michael
dc.contributor.authorBrinkerink, Christiaan D.
dc.contributor.authorBrissenden, Roger
dc.contributor.authorBritzen, Silke
dc.contributor.authorBroderick, Avery E.
dc.contributor.authorBroguiere, Dominique
dc.contributor.authorBronzwae, Thomas
dc.contributor.authorBustamente, Sandra
dc.contributor.authorByun, Do-Young
dc.contributor.authorCarlstrom, John E.
dc.contributor.authorChan, Chi-kwan
dc.contributor.authorChatterjee, Koushik
dc.contributor.authorChatterjee, Shami
dc.contributor.authorChen, Ming-Tang
dc.contributor.authorChen, Yongjun
dc.contributor.authorCho, Ilje
dc.contributor.authorChristian, Pierre
dc.contributor.authorConway, John E.
dc.contributor.authorCordes, James M.
dc.contributor.authorCrawford, Thomas M.
dc.contributor.authorCrew, Geoffrey B.
dc.contributor.authorCruz-Osorio, Alejandro
dc.contributor.authorCui, Yuzhu
dc.contributor.authorDavelaar, Jordy
dc.contributor.authorDe Laurentis, Mariafelicia
dc.contributor.authorDeane, Roger
dc.contributor.authorDempsey, Jessica
dc.contributor.authorDesvignes, Gregory
dc.contributor.authorDoeleman, Sheperd S.
dc.contributor.authorEatough, Ralph P.
dc.contributor.authorFalcke, Heino
dc.contributor.authorFish, Vincent L.
dc.contributor.authorFomalont, Ed
dc.contributor.authorFord, H. Alyson
dc.contributor.authorFraga-Encinas, Raquel
dc.contributor.authorFriberg, Per
dc.contributor.authorFromm, Christian M.
dc.contributor.authorGammie, Charles F.
dc.contributor.authorGarc’a, Roberto
dc.contributor.authorGentaz, Olivier
dc.contributor.authorGoddi, Ciriaco
dc.contributor.authorGold, Roman
dc.contributor.authorGomez-Ruiz, Arturo I.
dc.contributor.authorGu, Minfeng
dc.contributor.authorGurwell, Mark
dc.contributor.authorHada, Kazuhiro
dc.contributor.authorHaggard, Daryl
dc.contributor.authorHecht, Michael H.
dc.contributor.authorHesper, Ronald
dc.contributor.authorHo, Luis C.
dc.contributor.authorHo, Paul
dc.contributor.authorHuang, Chih-Wei L.
dc.contributor.authorHuang, Lei
dc.contributor.authorHughes, David H.
dc.contributor.authorIkeda, Shiro
dc.contributor.authorInoue, Makoto
dc.contributor.authorIssaoun, Sara
dc.contributor.authorJames, David J.
dc.contributor.authorJannuzi, Buell T.
dc.contributor.authorJanssen, Michael
dc.contributor.authorJeter, Britton
dc.contributor.authorJiang, Wu
dc.contributor.authorJimenez-Rosales, Alejandra
dc.contributor.authorJorstad, Svetlana
dc.contributor.authorJung, Taehyun
dc.contributor.authorKarami, Mansour
dc.contributor.authorKaruppusamy, Ramesh
dc.contributor.authorKawashima, Tomohisa
dc.contributor.authorKeating, Garrett K.
dc.contributor.authorKettenis, Mark
dc.contributor.authorKim, Dong-Jin
dc.contributor.authorKim, Jae-Young
dc.contributor.authorKim, Jongsoo
dc.contributor.authorKim, Junhan
dc.contributor.authorKino, Motoki
dc.contributor.authorKoay, Jun Yi
dc.contributor.authorKoch, Patrick M.
dc.contributor.authorKoyama, Shoko
dc.contributor.authorKramer, Carsten
dc.contributor.authorKramer, Michael
dc.contributor.authorKrichbaum, Thomas P.
dc.contributor.authorKuo, Cheng-Yu
dc.contributor.authorLauer, Tod R.
dc.contributor.authorLee, Sang-Sung
dc.contributor.authorLevis, Aviad
dc.contributor.authorLi, Yan-Rong
dc.contributor.authorLi, Zhiyuan
dc.contributor.authorLico, Rocco
dc.contributor.authorLindahl, Greg
dc.contributor.authorLindqvist, Michael
dc.contributor.authorLiu, Jun
dc.contributor.authorLiu, Kuo
dc.contributor.authorLiuzzo, Elisabetta
dc.contributor.authorLo, Wen-Ping
dc.contributor.authorLobanov, Andrei P.
dc.contributor.authorLoinard, Laurent
dc.contributor.authorLonsdale, Colin
dc.contributor.authorLu, Ru-Sen
dc.contributor.authorMacDonald, Nicholas R.
dc.contributor.authorMao, Jirong
dc.contributor.authorMarchili, Nicola
dc.contributor.authorMarkoff, Sera
dc.contributor.authorMarscher, Alan P.
dc.contributor.authorMartí-Vidal, Iván
dc.contributor.authorMatsushita, Satoki
dc.contributor.authorMatthews, Lynn D.
dc.contributor.authorMedeiros, Lia
dc.contributor.authorMenten, Karl M.
dc.contributor.authorMizuno, Izumi
dc.contributor.authorMizuno, Yosuke
dc.contributor.authorMoran, James M.
dc.contributor.authorMoscibrodzka, Monika
dc.contributor.authorMuller, Cornelia
dc.contributor.authorMejas, Alejandro Mus
dc.contributor.authorMusoke, Gibwa
dc.contributor.authorNagai, Hiroshi
dc.contributor.authorNagar, Neil M.
dc.contributor.authorNakamura, Masanori
dc.contributor.authorNarayanan, Gopal
dc.contributor.authorNatarajan, Iniyan
dc.contributor.authorNathanail, Antonios
dc.contributor.authorNeilsen, Joey
dc.contributor.authorNeri, Roberto
dc.contributor.authorNi, Chunchong
dc.contributor.authorNoutsos, Aristeidis
dc.contributor.authorNowak, Michael A.
dc.contributor.authorOkino, Hiroki
dc.contributor.authorOlivares, Hector
dc.contributor.authorOrtiz-Leon, Gisela N.
dc.contributor.authorOyama, Tomoaki
dc.contributor.authorZel, Feryal
dc.contributor.authorPalumbo, Daniel C. M.
dc.contributor.authorPark, Jongho
dc.contributor.authorPatel, Nimesh
dc.contributor.authorPen, Ue-Li
dc.contributor.authorPiétu, Vincent
dc.contributor.authorPlambeck, Richard
dc.contributor.authorPopStefanija, Aleksandar
dc.contributor.authorPorth, Oliver
dc.contributor.authorPötzl, Felix M.
dc.contributor.authorPrather, Ben
dc.contributor.authorPreciado-Lopez, Jorge A.
dc.contributor.authorPsaltis, Dimitrios
dc.contributor.authorPu, Hung-Yi
dc.contributor.authorRamakrishnan, Venkatessh
dc.contributor.authorRao, Ramprasad
dc.contributor.authorRawlings, Mark G.
dc.contributor.authorRaymond, Alexander W.
dc.contributor.authorRezzolla, Luciano
dc.contributor.authorRipperda, Bart
dc.contributor.authorRoelofs, Freek
dc.contributor.authorRogers, Alan
dc.contributor.authorRos, Eduardo
dc.contributor.authorRose, Mel
dc.contributor.authorRoshaninesha, Arash
dc.contributor.authorRottmann, Helge
dc.contributor.authorRoy, Alan L.
dc.contributor.authorRuszczyk, Chet
dc.contributor.authorRygl, Kazi L. J.
dc.contributor.authorSanchez, Salvador
dc.contributor.authorSanchez-Arguelles, David
dc.contributor.authorSasada, Mahito
dc.contributor.authorSavolainen, Tuomas
dc.contributor.authorSchloerb, F. Peter
dc.contributor.authorSchuster, Karl-Friedrich
dc.contributor.authorShao, Lijing
dc.contributor.authorShen, Zhiqiang
dc.contributor.authorSmal, Des
dc.contributor.authorSohn, Bong Won
dc.contributor.authorSooHoo, Jason
dc.contributor.authorSun, He
dc.contributor.authorTazaki, Fumie
dc.contributor.authorTetarenko, Alexandra J.
dc.contributor.authorTilanus, Remo P. J.
dc.contributor.authorTitus, Michael
dc.contributor.authorToma, Kenji
dc.contributor.authorTorne, Pablo
dc.contributor.authorTraianou, Efthalia
dc.contributor.authorTrent, Tyler
dc.contributor.authorTrippe, Sascha
dc.contributor.authorBemmel, Ilse van
dc.contributor.authorVan Langevelde, Huib Jan
dc.contributor.authorVan Rossum, Daniel R.
dc.contributor.authorWagner, Jan
dc.contributor.authorWard-Thompson, Derek
dc.contributor.authorWardle, John
dc.contributor.authorWeintroub, Jonathan
dc.contributor.authorWex, Norbert
dc.contributor.authorWharton, Robert
dc.contributor.authorWiik, Kaj
dc.contributor.authorWong, George N.
dc.contributor.authorWu, Qingwen
dc.contributor.authorYoon, Doosoo
dc.contributor.authorYoung, André
dc.contributor.authorYoung, Ken
dc.contributor.authorYouns, Ziri
dc.contributor.authorYuan, Feng
dc.contributor.authorYuan, Ye-Fei
dc.contributor.authorZensus, J. Anton
dc.contributor.authorZhao, Shan-Shan
dc.date.accessioned2022-07-25T10:02:57Z
dc.date.available2022-07-25T10:02:57Z
dc.date.issued2022-05
dc.description.abstractRecent developments in very long baseline interferometry (VLBI) have made it possible for the Event Horizon Telescope (EHT) to resolve the innermost accretion flows of the largest supermassive black holes on the sky. The sparse nature of the EHT’s (u, v)-coverage presents a challenge when attempting to resolve highly time-variable sources. We demonstrate that the changing (u, v)-coverage of the EHT can contain regions of time over the course of a single observation that facilitate dynamical imaging. These optimal time regions typically have projected baseline distributions that are approximately angularly isotropic and radially homogeneous. We derive a metric of coverage quality based on baseline isotropy and density that is capable of ranking array configurations by their ability to produce accurate dynamical reconstructions. We compare this metric to existing metrics in the literature and investigate their utility by performing dynamical reconstructions on synthetic data from simulated EHT observations of sources with simple orbital variability. We then use these results to make recommendations for imaging the 2017 EHT Sgr A* data seten_US
dc.description.departmentPhysicsen_US
dc.description.urihttp://iopscience.iop.org/2041-8205en_US
dc.identifier.citationFarah, J., Galison, P., Akiyama, K. et al. 2022, 'Selective Dynamical Imaging of Interferometric Data', The Astrophysical Journal Letters, vol. 930, no. 2, art. L18, pp. 1-21, doi : 10.3847/2041-8213/ac6615.en_US
dc.identifier.issn2041-8205 (print)
dc.identifier.issn2041-8213 (online)
dc.identifier.issn10.3847/2041-8213/ac6615
dc.identifier.urihttps://repository.up.ac.za/handle/2263/86428
dc.language.isoenen_US
dc.publisherIOP Publishingen_US
dc.rights© 2022. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence.en_US
dc.subjectEvent Horizon Telescope (EHT)en_US
dc.subjectSelective Dynamical Imagingen_US
dc.subjectVery long baseline interferometry (VLBI)en_US
dc.subjectSelective dynamical imagingen_US
dc.subjectAstrophysical black holesen_US
dc.subjectAperture synthesisen_US
dc.subjectInterferometryen_US
dc.titleSelective dynamical imaging of interferometric dataen_US
dc.typeArticleen_US

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