PMO OpenIR
First M87 Event Horizon Telescope Results. II. Array and Instrumentation
Akiyama, Kazunori1,2,3,4; Alberdi, Antxon5; Alef, Walter6; Asada, Keiichi7; Azulay, Rebecca6,8,9; Baczko, Anne-Kathrin6; Ball, David10,11; Balokovic, Mislav4,12; Barrett, John2; Bintley, Dan13; Blackburn, Lindy4,12; Boland, Wilfred14; Bouman, Katherine L.4,12,15; Bower, Geoffrey C.16; Bremer, Michael17; Brinkerink, Christiaan D.18; Brissenden, Roger4,12; Britzen, Silke6; Broderick, Avery E.19,20,21; Broguiere, Dominique17; Bronzwaer, Thomas18; Byun, Do-Young22,23; Carlstrom, John E.24,25,26,27; Chael, Andrew4,12; Chan, Chi-Kwan10,11,28; Chatterjee, Shami29; Chatterjee, Koushik30; Chen, Ming-Tang16; Chen, Yongjun31,32; Cho, Ilje22,23; Christian, Pierre10,11,12; Conway, John E.33; Cordes, James M.29; Crew, Geoffrey B.2; Cui, Yuzhu34,35; Davelaar, Jordy18; De Laurentis, Mariafelicia36,37,38; Deane, Roger39,40; Dempsey, Jessica13; Desvignes, Gregory6; Dexter, Jason41; Doeleman, Sheperd S.4,12; Eatough, Ralph P.6; Falcke, Heino18; Fish, Vincent L.2; Fomalont, Ed1; Fraga-Encinas, Raquel18; Friberg, Per13; Fromm, Christian M.37; Gomez, Jose L.5; Galison, Peter4,42,43; Gammie, Charles F.44,45; Garcia, Roberto17; Gentaz, Olivier17; Georgiev, Boris20,21; Goddi, Ciriaco18,46; Gold, Roman37; Gu, Minfeng31,47; Gurwell, Mark12; Hada, Kazuhiro34,35; Hecht, Michael H.2; Hesper, Ronald48; Ho, Luis C.49,50; Ho, Paul7; Honma, Mareki34,35; Huang, Chih-Wei L.7; Huang, Lei31,47; Hughes, David H.51; Ikeda, Shiro3,52,53,54; Inoue, Makoto7; Issaoun, Sara18; James, David J.4,12; Jannuzi, Buell T.10,11; Janssen, Michael18; Jeter, Britton20,21; Jiang, Wu31; Johnson, Michael D.4,12; Jorstad, Svetlana55,56; Jung, Taehyun22,23; Karami, Mansour19,20; Karuppusamy, Ramesh6; Kawashima, Tomohisa3; Keating, Garrett K.12; Kettenis, Mark57; Kim, Jae-Young6; Kim, Junhan10,11; Kim, Jongsoo22; Kino, Motoki3,58; Koay, Jun Yi7; Koch, Patrick M.7; Koyama, Shoko7; Kramer, Michael6; Kramer, Carsten17; Krichbaum, Thomas P.6; Kuo, Cheng-Yu59; Lauer, Tod R.60; Lee, Sang-Sung22; Li, Yan-Rong61; Li, Zhiyuan62,63; Lindqvist, Michael33; Liu, Kuo6; Liuzzo, Elisabetta64; Lo, Wen-Ping7,65; Lobanov, Andrei P.6; Loinard, Laurent66,67; Lonsdale, Colin2; Lu, Ru-Sen6,31; MacDonald, Nicholas R.6; Mao, Jirong68,69,70; Markoff, Sera30,71; Marrone, Daniel P.10,11; Marscher, Alan P.55; Marti-Vidal, Ivan33,72; Matsushita, Satoki7; Matthews, Lynn D.2; Medeiros, Lia10,11,73; Menten, Karl M.6; Mizuno, Yosuke37; Mizuno, Izumi13; Moran, James M.4,12; Moriyama, Kotaro2,34; Moscibrodzka, Monika18; Mueller, Cornelia6,18; Nagai, Hiroshi3,35; Nagar, Neil M.74; Nakamura, Masanori7; Narayan, Ramesh4,12; Narayanan, Gopal75; Natarajan, Iniyan40; Neri, Roberto17; Ni, Chunchong20,21; Noutsos, Aristeidis6; Okino, Hiroki34,76; Olivares, Hector37; Ortiz-Leon, Gisela N.6; Oyama, Tomoaki34; Ozel, Feryal10,11; Palumbo, Daniel C. M.4,12; Patel, Nimesh12; Pen, Ue-Li19,77,78,79; Pesce, Dominic W.4,12; Pietu, Vincent17; Plambeck, Richard80; PopStefanija, Aleksandar75; Porth, Oliver30,37; Ben Prather44; Preciado-Lopez, Jorge A.19; Psaltis, Dimitrios10,11; Pu, Hung-Yi19; Ramakrishnan, Venkatessh74; Rao, Ramprasad16; Rawlings, Mark G.13; Raymond, Alexander W.4,12; Rezzolla, Luciano37; Ripperda, Bart37; Roelofs, Freek18; Rogers, Alan2; Ros, Eduardo6; Rose, Mel10,11; Roshanineshat, Arash10,11; Rottmann, Helge6; Roy, Alan L.6; Ruszczyk, Chet2; Ryan, Benjamin R.81,82; Rygl, Kazi L. J.64; Sanchez, Salvador83; Sanchez-Arguelles, David51,84; Sasada, Mahito34,85; Savolainen, Tuomas6,86,87; Schloerb, F. Peter75; Schuster, Karl-Friedrich17; Shao, Lijing6,50; Shen, Zhiqiang31,32; Small, Des57; Sohn, Bong Won22,23,88; SooHoo, Jason2; Tazaki, Fumie34; Tiede, Paul20,21; Tilanus, Remo P. 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K.12; Srinivasan, Ranjani16; Stahm, William13; Stark, Antony A.12; Story, Kyle132; Timmer, Sjoerd T.18; Vertatschitsch, Laura12,127; Walther, Craig13; Wei, Ta-Shun7; Whitehorn, Nathan133; Whitney, Alan R.2; Woody, David P.134; Wouterloot, Jan G. A.13; Wright, Melvin135; Yamaguchi, Paul12; Yu, Chen-Yu7; Zeballos, Milagros102,136; Ziurys, Lucy10,11
2019-04-10
Source PublicationASTROPHYSICAL JOURNAL LETTERS
ISSN2041-8205
Volume875Issue:1Pages:28
Corresponding AuthorAkiyama, Kazunori()
AbstractThe Event Horizon Telescope (EHT) is a very long baseline interferometry (VLBI) array that comprises millimeter- and submillimeter-wavelength telescopes separated by distances comparable to the diameter of the Earth. At a nominal operating wavelength of similar to 1.3 mm, EHT angular resolution (lambda/D) is similar to 25 mu as, which is sufficient to resolve nearby supermassive black hole candidates on spatial and temporal scales that correspond to their event horizons. With this capability, the EHT scientific goals are to probe general relativistic effects in the strong-field regime and to study accretion and relativistic jet formation near the black hole boundary. In this Letter we describe the system design of the EHT, detail the technology and instrumentation that enable observations, and provide measures of its performance. Meeting the EHT science objectives has required several key developments that have facilitated the robust extension of the VLBI technique to EHT observing wavelengths and the production of instrumentation that can be deployed on a heterogeneous array of existing telescopes and facilities. To meet sensitivity requirements, high-bandwidth digital systems were developed that process data at rates of 64. gigabit s(-1), exceeding those of currently operating cm-wavelength VLBI arrays by more than an order of magnitude. Associated improvements include the development of phasing systems at array facilities, new receiver installation at several sites, and the deployment of hydrogen maser frequency standards to ensure coherent data capture across the array. These efforts led to the coordination and execution of the first Global EHT observations in 2017 April, and to event-horizon-scale imaging of the supermassive black hole candidate in M87.
Keywordblack hole physics galaxies: individual (M87) Galaxy: center gravitational lensing: strong instrumentation: interferometers techniques: high angular resolution
DOI10.3847/2041-8213/ab0c96
WOS KeywordSGR-A-ASTERISK ; SUPERMASSIVE BLACK-HOLE ; MAGNETIC-FIELD STRUCTURE ; GHZ VLBI OBSERVATIONS ; COHERENCE LIMITS ; INTRINSIC SIZE ; PICO-VELETA ; RADIO ; ACCRETION ; PARAMETERS
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000464210800002
PublisherIOP PUBLISHING LTD
Citation statistics
Cited Times:22[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/24519
Collection中国科学院紫金山天文台
Corresponding AuthorAkiyama, Kazunori
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Recommended Citation
GB/T 7714
Akiyama, Kazunori,Alberdi, Antxon,Alef, Walter,et al. First M87 Event Horizon Telescope Results. II. Array and Instrumentation[J]. ASTROPHYSICAL JOURNAL LETTERS,2019,875(1):28.
APA Akiyama, Kazunori.,Alberdi, Antxon.,Alef, Walter.,Asada, Keiichi.,Azulay, Rebecca.,...&Ziurys, Lucy.(2019).First M87 Event Horizon Telescope Results. II. Array and Instrumentation.ASTROPHYSICAL JOURNAL LETTERS,875(1),28.
MLA Akiyama, Kazunori,et al."First M87 Event Horizon Telescope Results. II. Array and Instrumentation".ASTROPHYSICAL JOURNAL LETTERS 875.1(2019):28.
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