YNAO OpenIR  > 南方基地
First M87 Event Horizon Telescope Results. VII. Polarization of the Ring
Akiyama,Kazunori1,2,3; Algaba,Juan Carlos4; Alberdi,Antxon5; Alef,Walter6; Anantua,Richard3,7,8; Asada,Keiichi9; Azulay,Rebecca6,10,11; Baczko,Anne-Kathrin6; Ball,David12; Balokovi?,Mislav13,14; Barrett,John1; Benson,Bradford A.15,16; Bintley,Dan17; Blackburn,Lindy3,7; Blundell,Raymond7; Boland,Wilfred18; Bouman,Katherine L.3,7,19; Bower,Geoffrey C.20; Boyce,Hope21,22; Bremer,Michael23; Brinkerink,Christiaan D.24; Brissenden,Roger3,7; Britzen,Silke6; Broderick,Avery E.25,26,27; Broguiere,Dominique23; Bronzwaer,Thomas24; Byun,Do-Young28,29; Carlstrom,John E.16,30,31,32; Chael,Andrew33; Chan,Chi-kwan12,34; Chatterjee,Shami35; Chatterjee,Koushik36; Chen,Ming-Tang20; Chen,Yongjun37,38; Chesler,Paul M.3; Cho,Ilje28,29; Christian,Pierre39; Conway,John E.40; Cordes,James M.35; Crawford,Thomas M.16,30; Crew,Geoffrey B.1; Cruz-Osorio,Alejandro41; Cui,Yuzhu42,43; Davelaar,Jordy8,24,44; De Laurentis,Mariafelicia41,45,46; Deane,Roger47,48,49; Dempsey,Jessica17; Desvignes,Gregory50; Dexter,Jason51; Doeleman,Sheperd S.3,7; Eatough,Ralph P.6,52; Falcke,Heino24; Farah,Joseph3,7,53; Fish,Vincent L.1; Fomalont,Ed54; Ford,H. Alyson12; Fraga-Encinas,Raquel24; Freeman,William T.55,56; Friberg,Per17; Fromm,Christian M.3,7,41; Fuentes,Antonio5; Galison,Peter3,57,58; Gammie,Charles F.59,60; García,Roberto23; Gentaz,Olivier23; Georgiev,Boris26,27; Goddi,Ciriaco24,61; Gold,Roman25,62; Gómez,José L.5; Gómez-Ruiz,Arturo I.63,64; Gu,Minfeng37,65; Gurwell,Mark7; Hada,Kazuhiro42,43; Haggard,Daryl21,22; Hecht,Michael H.1; Hesper,Ronald66; Ho,Luis C.67,68; Ho,Paul9; Honma,Mareki42,43,69; Huang,Chih-Wei L.9; Huang,Lei37,65; Hughes,David H.63; Ikeda,Shiro2,70,71,72; Inoue,Makoto9; Issaoun,Sara24; James,David J.73; Jannuzi,Buell T.12; Janssen,Michael6; Jeter,Britton26,27; Jiang,Wu37; Jimenez-Rosales,Alejandra24; Johnson,Michael D.3,7; Jorstad,Svetlana74,75; Jung,Taehyun28,29; Karami,Mansour25,26; Karuppusamy,Ramesh6; Kawashima,Tomohisa76; Keating,Garrett K.7; Kettenis,Mark77; Kim,Dong-Jin6; Kim,Jae-Young6,28; Kim,Jongsoo28; Kim,Junhan12,19; Kino,Motoki2,78; Koay,Jun Yi9; Kofuji,Yutaro42,69; Koch,Patrick M.9; Koyama,Shoko9; Kramer,Michael6; Kramer,Carsten23; Krichbaum,Thomas P.6; Kuo,Cheng-Yu9,79; Lauer,Tod R.80; Lee,Sang-Sung28; Levis,Aviad19; Li,Yan-Rong81; Li,Zhiyuan82,83; Lindqvist,Michael40; Lico,Rocco5,6; Lindahl,Greg7; Liu,Jun6; Liu,Kuo6; Liuzzo,Elisabetta84; Lo,Wen-Ping9,85; Lobanov,Andrei P.6; Loinard,Laurent86,87; Lonsdale,Colin1; Lu,Ru-Sen6,37,38; MacDonald,Nicholas R.6; Mao JR(毛基荣)88,89,90; Marchili,Nicola6,84; Markoff,Sera36,91; Marrone,Daniel P.12; Marscher,Alan P.74; Martí-Vidal,Iván10,11; Matsushita,Satoki9; Matthews,Lynn D.1; Medeiros,Lia12,92; Menten,Karl M.6; Mizuno,Izumi17; Mizuno,Yosuke41,93; Moran,James M.3,7; Moriyama,Kotaro1,42; Moscibrodzka,Monika24; Müller,Cornelia6,24; Musoke,Gibwa24,36; Mejías,Alejandro Mus10,11; Michalik,Daniel94,95; Nadolski,Andrew60; Nagai,Hiroshi2,43; Nagar,Neil M.96; Nakamura,Masanori9,97; Narayan,Ramesh3,7; Narayanan,Gopal98; Natarajan,Iniyan47,49,99; Nathanail,Antonios41,100; Neilsen,Joey101; Neri,Roberto23; Ni,Chunchong26,27; Noutsos,Aristeidis6; Nowak,Michael A.102; Okino,Hiroki42,69; Olivares,Héctor24; Ortiz-León,Gisela N.6; Oyama,Tomoaki42; ?zel,Feryal12; Palumbo,Daniel C. M.3,7; Park,Jongho9; Patel,Nimesh7; Pen,Ue-Li25,103,104,105; Pesce,Dominic W.3,7; Piétu,Vincent23; Plambeck,Richard106; PopStefanija,Aleksandar98; Porth,Oliver36,41; P?tzl,Felix M.6; Prather,Ben58; Preciado-López,Jorge A.25; Psaltis,Dimitrios12; Pu,Hung-Yi9,25,107; Ramakrishnan,Venkatessh96; Rao,Ramprasad20; Rawlings,Mark G.17; Raymond,Alexander W.3,7; Rezzolla,Luciano41,108,109; Ricarte,Angelo3,7; Ripperda,Bart8,110; Roelofs,Freek24; Rogers,Alan1; Ros,Eduardo6; Rose,Mel12; Roshanineshat,Arash12; Rottmann,Helge6; Roy,Alan L.6; Ruszczyk,Chet1; Rygl,Kazi L. J.84; Sánchez,Salvador111; Sánchez-Arguelles,David63,64; Sasada,Mahito42,112; Savolainen,Tuomas6,113,114; Schloerb,F. Peter98; Schuster,Karl-Friedrich23; Shao,Lijing6,68; Shen,Zhiqiang37,38; Small,Des77; Sohn,Bong Won28,29,115; SooHoo,Jason1; Sun,He19; Tazaki,Fumie42; Tetarenko,Alexandra J.17; Tiede,Paul26,27; Tilanus,Remo P. J.12,24,61,116; Titus,Michael1; Toma,Kenji117,118; Torne,Pablo6,111; Trent,Tyler12; Traianou,Efthalia6; Trippe,Sascha119; Bemmel,Ilse van77; van Langevelde,Huib Jan77,120; van Rossum,Daniel R.24; Wagner,Jan6; Ward-Thompson,Derek121; Wardle,John122; Weintroub,Jonathan3,7; Wex,Norbert6; Wharton,Robert6; Wielgus,Maciek3,7; Wong,George N.59; Wu,Qingwen123; Yoon,Doosoo36; Young,André24; Young,Ken7; Younsi,Ziri41,124; Yuan,Feng37,65,125; Yuan,Ye-Fei126; Zensus,J. Anton6; Zhao,Guang-Yao5; Zhao,Shan-Shan37
Corresponding AuthorAkiyama, Kazunori()
Source PublicationThe Astrophysical Journal Letters
2021-03-01
Volume910Issue:1Pages:48
DOI10.3847/2041-8213/abe71d
Contribution Rank第88完成单位
Indexed BySCI
KeywordPolarimetry Radio interferometry Very long baseline interferometry Supermassive black holes Active galactic nuclei Low-luminosity active galactic nuclei Astronomy data modeling Galaxy accretion disks Galaxies: individual: M87
Abstract

In 2017 April, the Event Horizon Telescope (EHT) observed the near-horizon region around the supermassive black hole at the core of the M87 galaxy. These 1.3 mm wavelength observations revealed a compact asymmetric ring-like source morphology. This structure originates from synchrotron emission produced by relativistic plasma located in the immediate vicinity of the black hole. Here we present the corresponding linear-polarimetric EHT images of the center of M87. We find that only a part of the ring is significantly polarized. The resolved fractional linear polarization has a maximum located in the southwest part of the ring, where it rises to the level of ~15%. The polarization position angles are arranged in a nearly azimuthal pattern. We perform quantitative measurements of relevant polarimetric properties of the compact emission and find evidence for the temporal evolution of the polarized source structure over one week of EHT observations. The details of the polarimetric data reduction and calibration methodology are provided. We carry out the data analysis using multiple independent imaging and modeling techniques, each of which is validated against a suite of synthetic data sets. The gross polarimetric structure and its apparent evolution with time are insensitive to the method used to reconstruct the image. These polarimetric images carry information about the structure of the magnetic fields responsible for the synchrotron emission. Their physical interpretation is discussed in an accompanying publication.

Funding ProjectAcademy of Finland[274477] ; Academy of Finland[284495] ; Academy of Finland[312496] ; Academy of Finland[315721] ; Agencia Nacional de Investigacion y Desarrollo (ANID), Chile[NCN19_058] ; Fondecyt[3190878] ; Alfred P. Sloan Research Fellowship ; black hole Initiative at Harvard University from the John Templeton Foundation[60477] ; Consejo Nacional de Ciencia y Tecnologia (CONACYT, Mexico)[U0004-246083] ; Consejo Nacional de Ciencia y Tecnologia (CONACYT, Mexico)[U0004-259839] ; Consejo Nacional de Ciencia y Tecnologia (CONACYT, Mexico)[F0003-272050] ; Consejo Nacional de Ciencia y Tecnologia (CONACYT, Mexico)[M0037-279006] ; Consejo Nacional de Ciencia y Tecnologia (CONACYT, Mexico)[F0003-281692] ; Consejo Nacional de Ciencia y Tecnologia (CONACYT, Mexico)[104497] ; Consejo Nacional de Ciencia y Tecnologia (CONACYT, Mexico)[275201] ; Consejo Nacional de Ciencia y Tecnologia (CONACYT, Mexico)[263356] ; Direccion General de Asuntos del Personal Academico-Universidad Nacional Autonoma de Mexico (DGAPA-UNAM)[IN112417] ; Direccion General de Asuntos del Personal Academico-Universidad Nacional Autonoma de Mexico (DGAPA-UNAM)[IN112820] ; EACOA Fellowship of the East Asia Core Observatories Association ; European Research Council Synergy Grant BlackHoleCam: Imaging the Event Horizon of Black Holes[610058] ; Generalitat Valenciana[APOSTD/2018/177] ; GenT Program[CIDEGENT/2018/021] ; MICINN[PID2019-108995GB-C22] ; Gordon and Betty Moore Foundation[GBMF-3561] ; Gordon and Betty Moore Foundation[GBMF-5278] ; Gordon and Betty Moore Foundation[GBMF 947] ; Joint Princeton/Flatiron Postdoctoral Fellowship ; Joint Columbia/Flatiron Postdoctoral Fellowship ; Simons Foundation ; Japanese Government (Monbukagakusho: MEXT) Scholarship ; Japan Society for the Promotion of Science (JSPS)[JP17J08829] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences (CAS)[QYZDJ-SSW-SLH057] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences (CAS)[QYZDJSSW-SYS008] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences (CAS)[ZDBS-LY-SLH011] ; Leverhulme Trust Early Career Research Fellowship ; Max-PlanckGesellschaft (MPG) ; Max Planck Partner Group of the MPG ; CAS ; MEXT/JSPS KAKENHI[18KK0090] ; MEXT/JSPS KAKENHI[JP18K13594] ; MEXT/JSPS KAKENHI[JP18K03656] ; MEXT/JSPS KAKENHI[JP18H03721] ; MEXT/JSPS KAKENHI[18K03709] ; MEXT/JSPS KAKENHI[18H01245] ; MEXT/JSPS KAKENHI[25120007] ; Malaysian Fundamental Research Grant Scheme (FRGS)[FRGS/1/2019/STG02/UM/02/6] ; MIT International Science and Technology Initiatives (MISTI) Funds ; Ministry of Science and Technology (MOST) of Taiwan[105-2112-M-001025-MY3] ; Ministry of Science and Technology (MOST) of Taiwan[106-2112-M-001-011] ; Ministry of Science and Technology (MOST) of Taiwan[106-2119-M-001-027] ; Ministry of Science and Technology (MOST) of Taiwan[1072119-M-001-017] ; Ministry of Science and Technology (MOST) of Taiwan[107-2119-M-001-020] ; Ministry of Science and Technology (MOST) of Taiwan[107-2119-M-110-005] ; Ministry of Science and Technology (MOST) of Taiwan[108-2112-M-001-048] ; Ministry of Science and Technology (MOST) of Taiwan[109-2124-M-001-005] ; National Aeronautics and Space Administration (NASA)[80NSSC20K1567] ; National Aeronautics and Space Administration (NASA)[NNX17AL82G] ; National Aeronautics and Space Administration (NASA Astrophysics Theory Program)[80NSSC20K0527] ; National Aeronautics and Space Administration (NASA NuSTAR award)[80NSSC20K0645] ; National Aeronautics and Space Administration - Space Telescope Science Institute[HST-HF251431.001-A] ; NASA[NAS5-26555] ; National Institute of Natural Sciences (NINS) of Japan ; National Key Research and Development Program of China[2016YFA0400704] ; National Key Research and Development Program of China[2016YFA0400702] ; National Science Foundation (NSF)[AST-0096454] ; National Science Foundation (NSF)[AST-0352953] ; National Science Foundation (NSF)[AST0521233] ; National Science Foundation (NSF)[AST-0705062] ; National Science Foundation (NSF)[AST-0905844] ; National Science Foundation (NSF)[AST-0922984] ; National Science Foundation (NSF)[AST1126433] ; National Science Foundation (NSF)[AST-1140030] ; National Science Foundation (NSF)[DGE-1144085] ; National Science Foundation (NSF)[AST-1207704] ; National Science Foundation (NSF)[AST1207730] ; National Science Foundation (NSF)[AST-1207752] ; National Science Foundation (NSF)[MRI-1228509] ; National Science Foundation (NSF)[OPP-1248097] ; The National Science Foundation (NSF)[AST1310896] ; The National Science Foundation (NSF)[AST-1337663] ; The National Science Foundation (NSF)[AST-1440254] ; The National Science Foundation (NSF)[AST-1555365] ; The National Science Foundation (NSF)[AST1615796] ; The National Science Foundation (NSF)[AST-1715061] ; The National Science Foundation (NSF)[AST-1716327] ; The National Science Foundation (NSF)[AST-1716536] ; The National Science Foundation (NSF)[OISE1743747] ; The National Science Foundation (NSF)[AST-1816420] ; The National Science Foundation (NSF)[AST-1903847] ; The National Science Foundation (NSF)[AST-1935980] ; The National Science Foundation (NSF)[AST2034306] ; Natural Science Foundation of China[11573051] ; Natural Science Foundation of China[11633006] ; Natural Science Foundation of China[11650110427] ; Natural Science Foundation of China[10625314] ; Natural Science Foundation of China[11721303] ; Natural Science Foundation of China[11725312] ; Natural Science Foundation of China[11933007] ; Natural Science Foundation of China[11991052] ; Natural Science Foundation of China[11991053] ; China Postdoctoral Science Foundation[2020M671266] ; Natural Sciences and Engineering Research Council of Canada (NSERC) ; Natural Sciences and Engineering Research Council of Canada (NSERC Alexander Graham Bell Canada Graduate Scholarships-Doctoral Program) ; National Research Foundation of Korea[2014H1A2A1018695] ; National Research Foundation of Korea[NRF2015H1A2A1033752] ; National Research Foundation of Korea[2015-R1D1A1A01056807] ; National Research Foundation of Korea[NRF-2015H1D3A1066561] ; National Research Foundation of Korea[2019R1F1A1059721] ; Netherlands Organization for Scientific Research (NWO) VICI award[639.043.513] ; Spinoza Prize[SPI 78-409] ; New Scientific Frontiers with Precision Radio Interferometry Fellowship - South African Radio Astronomy Observatory (SARAO) ; South African Research Chairs Initiative of the Department of Science and Innovation and National Research Foundation ; Swedish Research Council[2017-00648] ; Government of Canada through the Department of Innovation, Science and Economic Development ; Province of Ontario through the Ministry of Research, Innovation and Science ; Spanish Ministerio de Ciencia e Innovacion[PGC2018-098915-B-C21] ; Spanish Ministerio de Ciencia e Innovacion[AYA2016-80889-P] ; Spanish Ministerio de Ciencia e Innovacion[PID2019108995G-B-C21] ; State Agency for Research of the Spanish MCIU through the Center of Excellence Severo Ochoa award[SEV-2017-0709] ; Toray Science Foundation ; Consejeria de Economia, Conocimiento, Empresas y Universidad of the Junta de Andalucia[P18-FR-1769] ; Consejo Superior de Investigaciones Cientificas[2019AEP112] ; US Department of Energy (USDOE) through the Los Alamos National Laboratory[89233218CNA000001] ; European Union[730562 RadioNet] ; ALMA North America Development Fund ; Academia Sinica ; Chandra award[DD7-18089X] ; NSF[ACI-1548562] ; NSF[DBI-0735191] ; NSF[DBI-1265383] ; NSF[DBI1743442] ; Compute Ontario ; Calcul Quebec ; Compute Canada ; Smithsonian Institution ; National Key R&D Program of China[2017YFA0402700] ; Science and Technologies Facility Council (UK) ; Consejo Nacional de Ciencia y Tecnologia ; National Science Foundation ; State of Arizona ; NSF ; National Science Foundation[PLR-1248097] ; NSF Physics Frontier Center grant[PHY-1125897] ; Kavli Foundation ; CNRS (Centre National de la Recherche Scientifique, France) ; MPG (MaxPlanck-Gesellschaft, Germany) ; Gordon and Betty Moore Foundation grant[GBMF 947] ; Chandra[TM6-17006X] ; IGN (Instituto Geografico Nacional, Spain) ; [T-091.F-0006-2013]
Funding OrganizationAcademy of Finland ; Agencia Nacional de Investigacion y Desarrollo (ANID), Chile ; Fondecyt ; Alfred P. Sloan Research Fellowship ; black hole Initiative at Harvard University from the John Templeton Foundation ; Consejo Nacional de Ciencia y Tecnologia (CONACYT, Mexico) ; Direccion General de Asuntos del Personal Academico-Universidad Nacional Autonoma de Mexico (DGAPA-UNAM) ; EACOA Fellowship of the East Asia Core Observatories Association ; European Research Council Synergy Grant BlackHoleCam: Imaging the Event Horizon of Black Holes ; Generalitat Valenciana ; GenT Program ; MICINN ; Gordon and Betty Moore Foundation ; Joint Princeton/Flatiron Postdoctoral Fellowship ; Joint Columbia/Flatiron Postdoctoral Fellowship ; Simons Foundation ; Japanese Government (Monbukagakusho: MEXT) Scholarship ; Japan Society for the Promotion of Science (JSPS) ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences (CAS) ; Leverhulme Trust Early Career Research Fellowship ; Max-PlanckGesellschaft (MPG) ; Max Planck Partner Group of the MPG ; CAS ; MEXT/JSPS KAKENHI ; Malaysian Fundamental Research Grant Scheme (FRGS) ; MIT International Science and Technology Initiatives (MISTI) Funds ; Ministry of Science and Technology (MOST) of Taiwan ; National Aeronautics and Space Administration (NASA) ; National Aeronautics and Space Administration (NASA Astrophysics Theory Program) ; National Aeronautics and Space Administration (NASA NuSTAR award) ; National Aeronautics and Space Administration - Space Telescope Science Institute ; NASA ; National Institute of Natural Sciences (NINS) of Japan ; National Key Research and Development Program of China ; National Science Foundation (NSF) ; The National Science Foundation (NSF) ; Natural Science Foundation of China ; China Postdoctoral Science Foundation ; Natural Sciences and Engineering Research Council of Canada (NSERC) ; Natural Sciences and Engineering Research Council of Canada (NSERC Alexander Graham Bell Canada Graduate Scholarships-Doctoral Program) ; National Research Foundation of Korea ; Netherlands Organization for Scientific Research (NWO) VICI award ; Spinoza Prize ; New Scientific Frontiers with Precision Radio Interferometry Fellowship - South African Radio Astronomy Observatory (SARAO) ; South African Research Chairs Initiative of the Department of Science and Innovation and National Research Foundation ; Swedish Research Council ; Government of Canada through the Department of Innovation, Science and Economic Development ; Province of Ontario through the Ministry of Research, Innovation and Science ; Spanish Ministerio de Ciencia e Innovacion ; State Agency for Research of the Spanish MCIU through the Center of Excellence Severo Ochoa award ; Toray Science Foundation ; Consejeria de Economia, Conocimiento, Empresas y Universidad of the Junta de Andalucia ; Consejo Superior de Investigaciones Cientificas ; US Department of Energy (USDOE) through the Los Alamos National Laboratory ; European Union ; ALMA North America Development Fund ; Academia Sinica ; Chandra award ; NSF ; Compute Ontario ; Calcul Quebec ; Compute Canada ; Smithsonian Institution ; National Key R&D Program of China ; Science and Technologies Facility Council (UK) ; Consejo Nacional de Ciencia y Tecnologia ; National Science Foundation ; State of Arizona ; NSF ; National Science Foundation ; NSF Physics Frontier Center grant ; Kavli Foundation ; CNRS (Centre National de la Recherche Scientifique, France) ; MPG (MaxPlanck-Gesellschaft, Germany) ; Gordon and Betty Moore Foundation grant ; Chandra ; IGN (Instituto Geografico Nacional, Spain)
Language英语
Subject Area天文学 ; 天体物理学 ; 高能天体物理学 ; 星系与宇宙学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN2041-8205
URL查看原文
WOS IDWOS:000632371800001
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
Citation statistics
Cited Times:31[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/24237
Collection南方基地
中国科学院天体结构与演化重点实验室
Corresponding AuthorAkiyama,Kazunori; Loinard,Laurent
Affiliation1.Massachusetts Institute of Technology Haystack Observatory, 99 Millstone Road, Westford, MA 01886, USA
2.National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
3.Black Hole Initiative at Harvard University, 20 Garden Street, Cambridge, MA 02138, USA
4.Department of Physics, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
5.Instituto de Astrofísica de Andalucía-CSIC, Glorieta de la Astronomía s/n, E-18008 Granada, Spain
6.Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany
7.Center for Astrophysics ∣ Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA
8.Center for Computational Astrophysics, Flatiron Institute, 162 Fifth Avenue, New York, NY 10010, USA
9.Institute of Astronomy and Astrophysics, Academia Sinica, 11F of Astronomy-Mathematics Building, AS/NTU No. 1, Sec. 4, Roosevelt Rd, Taipei 10617, Taiwan, R.O.C.
10.Departament d’Astronomia i Astrofísica, Universitat de València, C. Dr. Moliner 50, E-46100 Burjassot, València, Spain
11.Observatori Astronòmic, Universitat de València, C. Catedrático José Beltrán 2, E-46980 Paterna, València, Spain
12.Steward Observatory and Department of Astronomy, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721, USA
13.Yale Center for Astronomy & Astrophysics, 52 Hillhouse Avenue, New Haven, CT 06511, USA
14.Department of Physics, Yale University, P.O. Box 2018120, New Haven, CT 06520, USA
15.Fermi National Accelerator Laboratory, MS209, P.O. Box 500, Batavia, IL, 60510, USA
16.Department of Astronomy and Astrophysics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637, USA
17.East Asian Observatory, 660 North A’ohoku Place, Hilo, HI 96720, USA
18.Nederlandse Onderzoekschool voor Astronomie (NOVA), PO Box 9513, 2300 RA Leiden, The Netherlands
19.California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, USA
20.Institute of Astronomy and Astrophysics, Academia Sinica, 645 North A’ohoku Place, Hilo, HI 96720, USA
21.Department of Physics, McGill University, 3600 rue University, Montréal, QC H3A 2T8, Canada
22.McGill Space Institute, McGill University, 3550 rue University, Montréal, QC H3A 2A7, Canada
23.Institut de Radioastronomie Millimétrique, 300 rue de la Piscine, F-38406 Saint Martin d’Hères, France
24.Department of Astrophysics, Institute for Mathematics, Astrophysics and Particle Physics (IMAPP), Radboud University, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
25.Perimeter Institute for Theoretical Physics, 31 Caroline Street North, Waterloo, ON, N2L 2Y5, Canada
26.Department of Physics and Astronomy, University of Waterloo, 200 University Avenue West, Waterloo, ON, N2L 3G1, Canada
27.Waterloo Centre for Astrophysics, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
28.Korea Astronomy and Space Science Institute, Daedeok-daero 776, Yuseong-gu, Daejeon 34055, Republic of Korea
29.University of Science and Technology, Gajeong-ro 217, Yuseong-gu, Daejeon 34113, Republic of Korea
30.Kavli Institute for Cosmological Physics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637, USA
31.Department of Physics, University of Chicago, 5720 South Ellis Avenue, Chicago, IL 60637, USA
32.Enrico Fermi Institute, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637, USA
33.Princeton Center for Theoretical Science, Jadwin Hall, Princeton University, Princeton, NJ 08544, USA
34.Data Science Institute, University of Arizona, 1230 North Cherry Avenue, Tucson, AZ 85721, USA
35.Cornell Center for Astrophysics and Planetary Science, Cornell University, Ithaca, NY 14853, USA
36.Anton Pannekoek Institute for Astronomy, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands
37.Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030, People’s Republic of China
38.Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, Nanjing 210008, People’s Republic of China
39.Physics Department, Fairfield University, 1073 North Benson Road, Fairfield, CT 06824, USA
40.Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, SE-43992 Onsala, Sweden
41.Institut für Theoretische Physik, Goethe-Universit?t Frankfurt, Max-von-Laue-Stra?e 1, D-60438 Frankfurt am Main, Germany
42.Mizusawa VLBI Observatory, National Astronomical Observatory of Japan, 2-12 Hoshigaoka, Mizusawa, Oshu, Iwate 023-0861, Japan
43.Department of Astronomical Science, The Graduate University for Advanced Studies (SOKENDAI), 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
44.Department of Astronomy and Columbia Astrophysics Laboratory, Columbia University, 550 West 120th Street, New York, NY 10027, USA
45.Dipartimento di Fisica “E. Pancini, ”Universitá di Napoli “Federico II,” Compl. Univ. di Monte S. Angelo, Edificio G, Via Cinthia, I-80126, Napoli, Italy
46.INFN Sez. di Napoli, Compl. Univ. di Monte S. Angelo, Edificio G, Via Cinthia, I-80126, Napoli, Italy
47.Wits Centre for Astrophysics, University of the Witwatersrand, 1 Jan Smuts Avenue, Braamfontein, Johannesburg 2050, South Africa
48.Department of Physics, University of Pretoria, Hatfield, Pretoria 0028, South Africa
49.Centre for Radio Astronomy Techniques and Technologies, Department of Physics and Electronics, Rhodes University, Makhanda 6140, South Africa
50.LESIA, Observatoire de Paris, Université PSL, CNRS, Sorbonne Université, Université de Paris, 5 place Jules Janssen, F-92195 Meudon, France
51.JILA and Department of Astrophysical and Planetary Sciences, University of Colorado, Boulder, CO 80309, USA
52.National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100101, People’s Republic of China
53.University of Massachusetts Boston, 100 William T. Morrissey Boulevard, Boston, MA 02125, USA
54.National Radio Astronomy Observatory, 520 Edgemont Road, Charlottesville, VA 22903, USA
55.Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, 32-D476, 77 Massachusetts Avenue, Cambridge, MA 02142, USA
56.Google Research, 355 Main Street, Cambridge, MA 02142, USA
57.Department of History of Science, Harvard University, Cambridge, MA 02138, USA
58.Department of Physics, Harvard University, Cambridge, MA 02138, USA
59.Department of Physics, University of Illinois, 1110 West Green Street, Urbana, IL 61801, USA
60.Department of Astronomy, University of Illinois at Urbana-Champaign, 1002 West Green Street, Urbana, IL 61801, USA
61.Leiden Observatory—Allegro, Leiden University, P.O. Box 9513, 2300 RA Leiden, The Netherlands
62.CP3-Origins, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark
63.Instituto Nacional de Astrofísica, óptica y Electrónica. Apartado Postal 51 y 216, 72000. Puebla Pue., México
64.Consejo Nacional de Ciencia y Tecnología, Av. Insurgentes Sur 1582, 03940, Ciudad de México, México
65.Key Laboratory for Research in Galaxies and Cosmology, Chinese Academy of Sciences, Shanghai 200030, People’s Republic of China
66.NOVA Sub-mm Instrumentation Group, Kapteyn Astronomical Institute, University of Groningen, Landleven 12, 9747 AD Groningen, The Netherlands
67.Department of Astronomy, School of Physics, Peking University, Beijing 100871, People’s Republic of China
68.Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, People’s Republic of China
69.Department of Astronomy, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
70.The Institute of Statistical Mathematics, 10-3 Midori-cho, Tachikawa, Tokyo, 190-8562, Japan
71.Department of Statistical Science, The Graduate University for Advanced Studies (SOKENDAI), 10-3 Midori-cho, Tachikawa, Tokyo 190-8562, Japan
72.Kavli Institute for the Physics and Mathematics of the Universe, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, 277-8583, Japan
73.ASTRAVEO, LLC, PO Box 1668,Gloucester, MA 01931, USA
74.Institute for Astrophysical Research, Boston University, 725 Commonwealth Avenue, Boston, MA 02215, USA
75.Astronomical Institute, St. Petersburg University, Universitetskij pr., 28, Petrodvorets,198504 St.Petersburg, Russia
76.Institute for Cosmic Ray Research, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8582, Japan
77.Joint Institute for VLBI ERIC (JIVE), Oude Hoogeveensedijk 4, 7991 PD Dwingeloo, The Netherlands
78.Kogakuin University of Technology & Engineering, Academic Support Center, 2665-1 Nakano, Hachioji, Tokyo 192-0015, Japan
79.Physics Department, National Sun Yat-Sen University, No. 70, Lien-Hai Road, Kaosiung City 80424, Taiwan, R.O.C.
80.National Optical Astronomy Observatory, 950 North Cherry Avenue, Tucson, AZ 85719, USA
81.Key Laboratory for Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, 19B Yuquan Road, Shijingshan District, Beijing, People’s Republic of China
82.School of Astronomy and Space Science, Nanjing University, Nanjing 210023, People’s Republic of China
83.Key Laboratory of Modern Astronomy and Astrophysics, Nanjing University, Nanjing 210023, People’s Republic of China
84.Italian ALMA Regional Centre, INAF-Istituto di Radioastronomia, Via P. Gobetti 101, I-40129 Bologna, Italy
85.Department of Physics, National Taiwan University, No. 1, Sect. 4, Roosevelt Road, Taipei 10617, Taiwan, R.O.C.
86.Instituto de Radioastronomía y Astrofísica, Universidad Nacional Autónoma de México, Morelia 58089, México
87.Instituto de Astronomía, Universidad Nacional Autónoma de México, CdMx 04510, México
88.Yunnan Observatories, Chinese Academy of Sciences, 650011 Kunming, Yunnan Province, People's Republic of China
89.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012, People's Republic of China
90.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 650011 Kunming, People's Republic of China
91.Gravitation Astroparticle Physics Amsterdam (GRAPPA) Institute, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
92.School of Natural Sciences, Institute for Advanced Study, 1 Einstein Drive, Princeton, NJ 08540, USA
93.Tsung-Dao Lee Institute and School of Physics and Astronomy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, People’s Republic of China
94.Science Support Office, Directorate of Science, European Space Research and Technology Centre (ESA/ESTEC), Keplerlaan 1, 2201 AZ Noordwijk, The Netherlands
95.University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637, USA
96.Astronomy Department, Universidad de Concepción, Casilla 160-C, Concepción, Chile
97.National Institute of Technology, Hachinohe College, 16-1 Uwanotai, Tamonoki, Hachinohe City, Aomori 039-1192, Japan
98.Department of Astronomy, University of Massachusetts, 01003, Amherst, MA, USA
99.South African Radio Astronomy Observatory, Observatory 7925, Cape Town, South Africa
100.Department of Physics, National and Kapodistrian University of Athens, Panepistimiopolis, GR 15783 Zografos, Greece
101.Villanova University, Mendel Science Center Rm. 263B, 800 East Lancaster Avenue, Villanova PA 19085, USA
102.Physics Department, Washington University CB 1105, St Louis, MO 63130, USA
103.Canadian Institute for Theoretical Astrophysics, University of Toronto, 60 St. George Street, Toronto, ON M5S 3H8, Canada
104.Dunlap Institute for Astronomy and Astrophysics, University of Toronto, 50 St. George Street, Toronto, ON M5S 3H4, Canada
105.Canadian Institute for Advanced Research, 180 Dundas Street West, Toronto, ON M5G 1Z8, Canada
106.Radio Astronomy Laboratory, University of California, Berkeley, CA 94720, USA
107.Department of Physics, National Taiwan Normal University, No. 88, Sec. 4, Tingzhou Rd., Taipei 116, Taiwan, R.O.C.
108.Frankfurt Institute for Advanced Studies, Ruth-Moufang-Strasse 1, 60438 Frankfurt, Germany
109.School of Mathematics, Trinity College, Dublin 2, Ireland
110.Department of Astrophysical Sciences, Peyton Hall, Princeton University, Princeton, NJ 08544, USA
111.Instituto de Radioastronomía Milimétrica, IRAM, Avenida Divina Pastora 7, Local 20, E-18012, Granada, Spain
112.Hiroshima Astrophysical Science Center, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
113.Aalto University Department of Electronics and Nanoengineering, PL 15500, FI-00076 Aalto, Finland
114.Aalto University Mets?hovi Radio Observatory, Mets?hovintie 114, FI-02540 Kylm?l?, Finland
115.Department of Astronomy, Yonsei University, Yonsei-ro 50, Seodaemun-gu, 03722 Seoul, Republic of Korea
116.Netherlands Organisation for Scientific Research (NWO), Postbus 93138, 2509 AC Den Haag, The Netherlands
117.Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai 980-8578, Japan
118.Astronomical Institute, Tohoku University, Sendai 980-8578, Japan
119.Department of Physics and Astronomy, Seoul National University, Gwanak-gu, Seoul 08826, Republic of Korea
120.Leiden Observatory, Leiden University, Postbus 2300, 9513 RA Leiden, The Netherlands
121.Jeremiah Horrocks Institute, University of Central Lancashire, Preston PR1 2HE, UK
122.Physics Department, Brandeis University, 415 South Street, Waltham, MA 02453, USA
123.School of Physics, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, People’s Republic of China
124.Mullard Space Science Laboratory, University College London, Holmbury St. Mary, Dorking, Surrey, RH5 6NT, UK
125.School of Astronomy and Space Sciences, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, People’s Republic of China
126.Astronomy Department, University of Science and Technology of China, Hefei 230026, People’s Republic of China
Recommended Citation
GB/T 7714
Akiyama,Kazunori,Algaba,Juan Carlos,Alberdi,Antxon,et al. First M87 Event Horizon Telescope Results. VII. Polarization of the Ring[J]. The Astrophysical Journal Letters,2021,910(1):48.
APA Akiyama,Kazunori.,Algaba,Juan Carlos.,Alberdi,Antxon.,Alef,Walter.,Anantua,Richard.,...&Zhao,Shan-Shan.(2021).First M87 Event Horizon Telescope Results. VII. Polarization of the Ring.The Astrophysical Journal Letters,910(1),48.
MLA Akiyama,Kazunori,et al."First M87 Event Horizon Telescope Results. VII. Polarization of the Ring".The Astrophysical Journal Letters 910.1(2021):48.
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