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First M87 Event Horizon Telescope Results. IX. Detection of Near-horizon Circular Polarization
Akiyama, Kazunori1,2,3; Alberdi, Antxon4; Alef, Walter5; Algaba, Juan Carlos6; Anantua, Richard3,7,8; Asada, Keiichi9; Azulay, Rebecca5,10,11; Bach, Uwe5; Baczko, Anne-Kathrin5,12; Ball, David13; Baloković, Mislav14; Barrett, John1; Bauböck, Michi15; Benson, Bradford A.16,17; Bintley, Dan18,19; Blackburn, Lindy3,7; Blundell, Raymond7; Bouman, Katherine L.20; Bower, Geoffrey C.21,22; Boyce, Hope23,24; Bremer, Michael25; Brinkerink, Christiaan D.26; Brissenden, Roger3,7; Britzen, Silke5; Broderick, Avery E.27,28,29; Broguiere, Dominique25; Bronzwaer, Thomas26; Bustamante, Sandra30; Byun, Do-Young31,32; Carlstrom, John E.17,33,34,35; Ceccobello, Chiara12; Chael, Andrew36; Chan, Chi-kwan13,37,38; Chang, Dominic O.3,7; Chatterjee, Koushik3,7; Chatterjee, Shami39; Chen, Ming-Tang21; Chen, Yongjun40,41; Cheng, Xiaopeng31; Cho, Ilje4; Christian, Pierre42; Conroy, Nicholas S.7,43; Conway, John E.12; Cordes, James M.39; Crawford, Thomas M.17,33; Crew, Geoffrey B.1; Cruz-Osorio, Alejandro44,45; Cui, Yuzhu46,47; Dahale, Rohan4; Davelaar, Jordy26,48,49; Laurentis, Mariafelicia De45,50,51; Deane, Roger52,53,54; Dempsey, Jessica18,19,55; Desvignes, Gregory5,56; Dexter, Jason57; Dhruv, Vedant15; Doeleman, Sheperd S.3,7; Dougal, Sean13; Dzib, Sergio A.5,5; Eatough, Ralph P.5,58; Emami, Razieh7; Falcke, Heino26; Farah, Joseph59,60; Fish, Vincent L.1; Fomalont, Ed61; Ford, H. Alyson13; Foschi, Marianna4; Fraga-Encinas, Raquel26; Freeman, William T.62,63; Friberg, Per18,19; Fromm, Christian M.5,45,64; Fuentes, Antonio4; Galison, Peter3,65,66; Gammie, Charles F.15,43,67; García, Roberto25; Gentaz, Olivier25; Georgiev, Boris27,28,29; Goddi, Ciriaco68,69,70,71; Gold, Roman72; Gómez-Ruiz, Arturo I.73,74; Gómez, José L.4; Gu, Minfeng40,75; Gurwell, Mark7; Hada, Kazuhiro76,77; Haggard, Daryl23,24; Haworth, Kari7; Hecht, Michael H.1; Hesper, Ronald78; Heumann, Dirk13; Ho, Luis C.79,80; Ho, Paul9,18,19; Honma, Mareki76,77,81; Huang, Chih-Wei L.9; Huang, Lei40,75; Hughes, David H.73; Ikeda, Shiro2,82,83,84; Impellizzeri, C. M. Violette61,85; Inoue, Makoto9; Issaoun, Sara7; James, David J.86,87; Jannuzi, Buell T.13; Janssen, Michael5; Jeter, Britton9; Jiang, Wu40; Jiménez-Rosales, Alejandra26; Johnson, Michael D.3,7; Jorstad, Svetlana88; Joshi, Abhishek V.15; Jung, Taehyun31,32; Karami, Mansour27,28; Karuppusamy, Ramesh5; Kawashima, Tomohisa89; Keating, Garrett K.7; Kettenis, Mark90; Kim, Dong-Jin5; Kim, Jae-Young5,91; Kim, Jongsoo31; Kim, Junhan20; Kino, Motoki2,92; Koay, Jun Yi9; Kocherlakota, Prashant45; Kofuji, Yutaro76,81; Koch, Patrick M.9; Koyama, Shoko9,93; Kramer, Carsten25; Kramer, Joana A.5; Kramer, Michael5; Krichbaum, Thomas P.5; Kuo, Cheng-Yu9,94; Bella, Noemi La26; Lauer, Tod R.95; Lee, Daeyoung15; Lee, Sang-Sung31; Leung, Po Kin96; Levis, Aviad20; Li, Zhiyuan97,98; Lico, Rocco4,99; Lindahl, Greg7; Lindqvist, Michael12; Lisakov, Mikhail5; Liu, Jun5; Liu, Kuo5; Liuzzo, Elisabetta100; Lo, Wen-Ping9,101; Lobanov, Andrei P.5; Loinard, Laurent44,102; Lonsdale, Colin J.1; Lowitz, Amy E.13; Lu, Ru-Sen5,40,41; MacDonald, Nicholas R.5; Mao JR(毛基荣)103,104,105; Marchili, Nicola5,100; Markoff, Sera106,107; Marrone, Daniel P.13; Marscher, Alan P.88; Martí-Vidal, Iván10,11; Matsushita, Satoki9; Matthews, Lynn D.1; Medeiros, Lia108; Menten, Karl M.5; Michalik, Daniel17,109; Mizuno, Izumi18,19; Mizuno, Yosuke45,47,111; Moran, James M.3,7; Moriyama, Kotaro1,45,76; Moscibrodzka, Monika26; Mulaudzi, Wanga106; Müller, Cornelia5,26; Müller, Hendrik5; Mus, Alejandro10,11; Musoke, Gibwa26,106; Myserlis, Ioannis110; Nadolski, Andrew43; Nagai, Hiroshi2,77; Nagar, Neil M.112; Nakamura, Masanori9,113; Narayan, Ramesh3,7; Narayanan, Gopal30; Natarajan, Iniyan3,7; Nathanail, Antonios45,114; Fuentes, Santiago Navarro111; Neilsen, Joey115; Neri, Roberto25; Ni, Chunchong27,28,29; Noutsos, Aristeidis5; Nowak, Michael A.116; Oh, Junghwan117; Okino, Hiroki76,81; Olivares, Héctor26; Ortiz-León, Gisela N.5,73; Oyama, Tomoaki76; Özel, Feryal118; Palumbo, Daniel C. M.3,7; Paraschos, Georgios Filippos5; Park, Jongho119; Parsons, Harriet18,19; Patel, Nimesh7; Pen, Ue-Li9,27,120,121,122; Pesce, Dominic W.3,7; Piétu, Vincent25; Plambeck, Richard123; PopStefanija, Aleksandar30; Porth, Oliver45,106; Pötzl, Felix M.5,124; Prather, Ben15; Preciado-López, Jorge A.27; Psaltis, Dimitrios118; Pu, Hung-Yi9,125,126; Ramakrishnan, Venkatessh112,127,128; Rao, Ramprasad7; Rawlings, Mark G.18,19,129; Raymond, Alexander W.3,7; Rezzolla, Luciano45,130,131; Ricarte, Angelo3,7; Ripperda, Bart27,120,121,132; Roelofs, Freek3,7,26; Rogers, Alan1; Romero-Cañizales, Cristina9; Ros, Eduardo5; Roshanineshat, Arash13; Rottmann, Helge5; Roy, Alan L.5; Ruiz, Ignacio111; Ruszczyk, Chet1; Rygl, Kazi L. J.100; Sánchez, Salvador111; Sánchez-Argüelles, David73,74; Sánchez-Portal, Miguel111; Sasada, Mahito76,133,134; Satapathy, Kaushik13; Savolainen, Tuomas5,128,135; Schloerb, F. Peter30; Schonfeld, Jonathan7; Schuster, Karl-Friedrich25; Shao, Lijing5,80; Shen, Zhiqiang40,41; Small, Des90; Sohn, Bong Won31,32,136; SooHoo, Jason1; Salas, León David Sosapanta106; Souccar, Kamal30; Sun, He137,138; Tazaki, Fumie76; Tetarenko, Alexandra J.139; Tiede, Paul3,7; Tilanus, Remo P. J.13,26,85,140; Titus, Michael1; Torne, Pablo5,111; Toscano, Teresa4; Traianou, Efthalia4,5; Trent, Tyler13; Trippe, Sascha141; Turk, Matthew43; Bemmel, Ilse van90; Langevelde, Huib Jan van85,90,142; Rossum, Daniel R. van26; Vos, Jesse26; Wagner, Jan5; Ward-Thompson, Derek143; Wardle, John144; Washington, Jasmin E.13; Weintroub, Jonathan3,7; Wharton, Robert5; Wielgus, Maciek5; Wiik, Kaj145; Witzel, Gunther5; Wondrak, Michael F.26,146; Wong, George N.36,147; Wu, Qingwen148; Yadlapalli, Nitika20; Yamaguchi, Paul7; Yfantis, Aristomenis26; Yoon, Doosoo106; Young, André26; Young, Ken7; Younsi, Ziri45,149; Yu, Wei7; Yuan, Feng40,75,150; Yuan, Ye-Fei151; Zensus, J. Anton5; Zhang, Shuo152; Zhao, Guang-Yao4; Zhao, Shan-Shan40
发表期刊ASTROPHYSICAL JOURNAL LETTERS
2023-11-01
卷号957期号:2
DOI10.3847/2041-8213/acff70
产权排序第103完成单位
收录类别SCI
摘要Event Horizon Telescope (EHT) observations have revealed a bright ring of emission around the supermassive black hole at the center of the M87 galaxy. EHT images in linear polarization have further identified a coherent spiral pattern around the black hole, produced from ordered magnetic fields threading the emitting plasma. Here we present the first analysis of circular polarization using EHT data, acquired in 2017, which can potentially provide additional insights into the magnetic fields and plasma composition near the black hole. Interferometric closure quantities provide convincing evidence for the presence of circularly polarized emission on event-horizon scales. We produce images of the circular polarization using both traditional and newly developed methods. All methods find a moderate level of resolved circular polarization across the image (divided by v divided by > < 3.7%), consistent with the low image-integrated circular polarization fraction measured by the Atacama Large Millimeter/submillimeter Array (divided by v(int)divided by < 1%). Despite this broad agreement, the methods show substantial variation in the morphology of the circularly polarized emission, indicating that our conclusions are strongly dependent on the imaging assumptions because of the limited baseline coverage, uncertain telescope gain calibration, and weakly polarized signal. We include this upper limit in an updated comparison to general relativistic magnetohydrodynamic simulation models. This analysis reinforces the previously reported preference for magnetically arrested accretion flow models. We find that most simulations naturally produce a low level of circular polarization consistent with our upper limit and that Faraday conversion is likely the dominant production mechanism for circular polarization at 230 GHz in M87*.
资助项目Academia Sinica; the Academy of Finland[274477]; the Academy of Finland[284495]; the Academy of Finland[312496]; the Academy of Finland[315721]; Agencia Nacional de Investigacion y Desarrollo (ANID), Chile[NCN19_058 (TITANs)]; Fondecyt[1221421]; BASAL[FB210003]; Alexander von Humboldt Stiftung; Alfred P. Sloan Research Fellowship; Allegro; European ALMA Regional Centre node in the Netherlands; NL astronomy research network NOVA; astronomy institutes of the University of Amsterdam; Leiden University,; Radboud University; ALMA North America Development Fund; Astrophysics and High Energy Physics program by MCIN - European Union NextGenerationEU[PRTR-C17I1]; John Templeton Foundation; Gordon and Betty Moore Foundation; Brinson Foundation; la Caixa Foundation[100010434]; la Caixa Foundation[LCF/BQ/DI22/11940027]; la Caixa Foundation[LCF/BQ/DI22/11940030]; China Scholarship Council; China Postdoctoral Science Foundation[2020M671266]; China Postdoctoral Science Foundation[2022M712084]; 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]; Colfuturo Scholarship; Consejeria de Economia, Conocimiento, Empresas y Universidad of the Junta de Andalucia[P18-FR-1769]; Consejo Superior de Investigaciones Cientificas[2019AEP112]; Delaney Family via the Delaney Family John A. Wheeler Chair at Perimeter Institute; 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]; Dutch Organization for Scientific Research (NWO)[639.043.513]; Dutch Organization for Scientific Research (NWO)[OCENW.KLEIN.113]; Dutch Black Hole Consortium of the research program the National Science Agenda[NWA 1292.19.202]; Dutch National Supercomputers, Cartesius and Snellius[2021.013]; Academia Sinica Institute of Astronomy and Astrophysics; National Astronomical Observatory of Japan; Center for Astronomical Mega-Science; Chinese Academy of Sciences; Korea Astronomy and Space Science Institute; European Research Council (ERC)[730562]; European Research Council (ERC)[101018682]; Horizon ERC[101040021]; Generalitat Valenciana[APOSTD/2018/177]; Generalitat Valenciana[ASFAE/2022/018]; GenT Program[CIDEGENT/2018/021]; European Research Council[884631]; FAPESP (Fundacao de Amparo a Pesquisa do Estado de Sao Paulo)[2021/01183-8]; Istituto Nazionale di Fisica Nucleare (INFN) sezione di Napoli, iniziative specifiche TEONGRAV; International Max Planck Research School for Astronomy and Astrophysics at the Universities of Bonn and Cologne[FR 4069/2-1]; Simons Foundation; Japan Ministry of Education, Culture, Sports, Science and Technology (MEXT)[JPMXP1020200109]; Japan Society for the Promotion of Science (JSPS)[JP17J08829]
项目资助者Academia Sinica ; the Academy of Finland[274477, 284495, 312496, 315721] ; Agencia Nacional de Investigacion y Desarrollo (ANID), Chile[NCN19_058 (TITANs)] ; Fondecyt[1221421] ; BASAL[FB210003] ; Alexander von Humboldt Stiftung ; Alfred P. Sloan Research Fellowship ; Allegro ; European ALMA Regional Centre node in the Netherlands ; NL astronomy research network NOVA ; astronomy institutes of the University of Amsterdam ; Leiden University, ; Radboud University ; ALMA North America Development Fund ; Astrophysics and High Energy Physics program by MCIN - European Union NextGenerationEU[PRTR-C17I1] ; John Templeton Foundation ; Gordon and Betty Moore Foundation ; Brinson Foundation ; la Caixa Foundation[100010434, LCF/BQ/DI22/11940027, LCF/BQ/DI22/11940030] ; China Scholarship Council ; China Postdoctoral Science Foundation[2020M671266, 2022M712084] ; Consejo Nacional de Ciencia y Tecnologia (CONACYT, Mexico)[U0004-246083, U0004-259839, F0003-272050, M0037-279006, F0003-281692, 104497, 275201, 263356] ; Colfuturo Scholarship ; Consejeria de Economia, Conocimiento, Empresas y Universidad of the Junta de Andalucia[P18-FR-1769] ; Consejo Superior de Investigaciones Cientificas[2019AEP112] ; Delaney Family via the Delaney Family John A. Wheeler Chair at Perimeter Institute ; Direccion General de Asuntos del Personal Academico-Universidad Nacional Autonoma de Mexico (DGAPA-UNAM)[IN112417, IN112820] ; Dutch Organization for Scientific Research (NWO)[639.043.513, OCENW.KLEIN.113] ; Dutch Black Hole Consortium of the research program the National Science Agenda[NWA 1292.19.202] ; Dutch National Supercomputers, Cartesius and Snellius[2021.013] ; Academia Sinica Institute of Astronomy and Astrophysics ; National Astronomical Observatory of Japan ; Center for Astronomical Mega-Science ; Chinese Academy of Sciences ; Korea Astronomy and Space Science Institute ; European Research Council (ERC)[730562, 101018682] ; Horizon ERC[101040021] ; Generalitat Valenciana[APOSTD/2018/177, ASFAE/2022/018] ; GenT Program[CIDEGENT/2018/021] ; European Research Council[884631] ; FAPESP (Fundacao de Amparo a Pesquisa do Estado de Sao Paulo)[2021/01183-8] ; Istituto Nazionale di Fisica Nucleare (INFN) sezione di Napoli, iniziative specifiche TEONGRAV ; International Max Planck Research School for Astronomy and Astrophysics at the Universities of Bonn and Cologne[FR 4069/2-1] ; Simons Foundation ; Japan Ministry of Education, Culture, Sports, Science and Technology (MEXT)[JPMXP1020200109] ; Japan Society for the Promotion of Science (JSPS)[JP17J08829]
语种英语
学科领域天文学
文章类型Article
出版者IOP Publishing Ltd
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN2041-8205
URL查看原文
WOS记录号WOS:001105906200001
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]RELATIVISTIC MAGNETOHYDRODYNAMIC SIMULATIONS ; MAGNETICALLY ARRESTED ACCRETION ; ACTIVE GALACTIC NUCLEI ; SGR A-ASTERISK ; BLACK-HOLE ; GRMHD SIMULATIONS ; POLARIMETRIC IMAGES ; FLOWS ; JETS ; EMISSION
引用统计
被引频次：22[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.ynao.ac.cn/handle/114a53/26485
专题星系类星体研究组
中国科学院天体结构与演化重点实验室
作者单位1.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.Instituto de Astrofísica de Andalucía-CSIC, Glorieta de la Astronomía s/n, E-18008 Granada, Spain;
5.Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany;
6.Department of Physics, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia;
7.Center for Astrophysics | Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA;
8.Department of Physics & Astronomy, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, 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.Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, SE-43992 Onsala, Sweden;
13.Steward Observatory and Department of Astronomy, University of Arizona, 933 N. Cherry Ave., Tucson, AZ 85721, USA;
14.Yale Center for Astronomy & Astrophysics, Yale University, 52 Hillhouse Avenue, New Haven, CT 06511, USA;
15.Department of Physics, University of Illinois, 1110 West Green Street, Urbana, IL 61801, USA;
16.Fermi National Accelerator Laboratory, MS209, P.O. Box 500, Batavia, IL 60510, USA;
17.Department of Astronomy and Astrophysics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637, USA;
18.East Asian Observatory, 660 N. A'ohoku Place, Hilo, HI 96720, USA;
19.James Clerk Maxwell Telescope (JCMT), 660 N. A'ohoku Place, Hilo, HI 96720, USA;
20.California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, USA;
21.Institute of Astronomy and Astrophysics, Academia Sinica, 645 N. A'ohoku Place, Hilo, HI 96720, USA;
22.Department of Physics and Astronomy, University of Hawaii at Manoa, 2505 Correa Road, Honolulu, HI 96822, USA;
23.Department of Physics, McGill University, 3600 rue University, Montréal, QC H3A 2T8, Canada;
24.Trottier Space Institute at McGill, 3550 rue University, Montréal, QC H3A 2A7, Canada;
25.Institut de Radioastronomie Millimétrique (IRAM), 300 rue de la Piscine, F-38406 Saint Martin d'Hères, France;
26.Department of Astrophysics, Institute for Mathematics, Astrophysics and Particle Physics (IMAPP), Radboud University, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands;
27.Perimeter Institute for Theoretical Physics, 31 Caroline Street North, Waterloo, ON N2L 2Y5, Canada;
28.Department of Physics and Astronomy, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada;
29.Waterloo Centre for Astrophysics, University of Waterloo, Waterloo, ON N2L 3G1, Canada;
30.Department of Astronomy, University of Massachusetts, Amherst, MA 01003, USA;
31.Korea Astronomy and Space Science Institute, Daedeok-daero 776, Yuseong-gu, Daejeon 34055, Republic of Korea;
32.University of Science and Technology, Gajeong-ro 217, Yuseong-gu, Daejeon 34113, Republic of Korea;
33.Kavli Institute for Cosmological Physics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637, USA;
34.Department of Physics, University of Chicago, 5720 South Ellis Avenue, Chicago, IL 60637, USA;
35.Enrico Fermi Institute, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637, USA;
36.Princeton Gravity Initiative, Jadwin Hall, Princeton University, Princeton, NJ 08544, USA;
37.Data Science Institute, University of Arizona, 1230 N. Cherry Ave., Tucson, AZ 85721, USA;
38.Program in Applied Mathematics, University of Arizona, 617 N. Santa Rita, Tucson, AZ 85721, USA;
39.Cornell Center for Astrophysics and Planetary Science, Cornell University, Ithaca, NY 14853, USA;
40.Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030, People's Republic of China;
41.Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, Nanjing 210008, People's Republic of China;
42.Physics Department, Fairfield University, 1073 North Benson Road, Fairfield, CT 06824, USA;
43.Department of Astronomy, University of Illinois at Urbana-Champaign, 1002 West Green Street, Urbana, IL 61801, USA;
44.Instituto de Astronomía, Universidad Nacional Autónoma de México (UNAM), Apdo Postal 70-264, Ciudad de México, México;
45.Institut für Theoretische Physik, Goethe-Universität Frankfurt, Max-von-Laue-Straße 1, D-60438 Frankfurt am Main, Germany;
46.Research Center for Intelligent Computing Platforms, Zhejiang Laboratory, Hangzhou 311100, People's Republic of China;
47.Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shengrong Road 520, Shanghai, 201210, People's Republic of China;
48.Department of Astronomy and Columbia Astrophysics Laboratory, Columbia University, 500 W. 120th Street, New York, NY 10027, USA;
49.Center for Computational Astrophysics, Flatiron Institute, 162 Fifth Avenue, New York, NY 10010, USA;
50.Dipartimento di Fisica "E. Pancini," Università di Napoli "Federico II," Compl. Univ. di Monte S. Angelo, Edificio G, Via Cinthia, I-80126, Napoli, Italy;
51.INFN Sez. di Napoli, Compl. Univ. di Monte S. Angelo, Edificio G, Via Cinthia, I-80126, Napoli, Italy;
52.Wits Centre for Astrophysics, University of the Witwatersrand, 1 Jan Smuts Avenue, Braamfontein, Johannesburg 2050, South Africa;
53.Department of Physics, University of Pretoria, Hatfield, Pretoria 0028, South Africa;
54.Centre for Radio Astronomy Techniques and Technologies, Department of Physics and Electronics, Rhodes University, Makhanda 6140, South Africa;
55.ASTRON, Oude Hoogeveensedijk 4, 7991 PD Dwingeloo, The Netherlands;
56.LESIA, Observatoire de Paris, Université PSL, CNRS, Sorbonne Université, Université de Paris, 5 place Jules Janssen, F-92195 Meudon, France;
57.JILA and Department of Astrophysical and Planetary Sciences, University of Colorado, Boulder, CO 80309, USA;
58.National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100101, People's Republic of China;
59.Las Cumbres Observatory, 6740 Cortona Drive, Suite 102, Goleta, CA 93117-5575, USA;
60.Department of Physics, University of California, Santa Barbara, CA 93106-9530, USA;
61.National Radio Astronomy Observatory, 520 Edgemont Road, Charlottesville, VA 22903, USA;
62.Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, 32-D476, 77 Massachusetts Ave., Cambridge, MA 02142, USA;
63.Google Research, 355 Main St., Cambridge, MA 02142, USA;
64.Institut für Theoretische Physik und Astrophysik, Universität Würzburg, Emil-Fischer-Str. 31, D-97074 Würzburg, Germany;
65.Department of History of Science, Harvard University, Cambridge, MA 02138, USA;
66.Department of Physics, Harvard University, Cambridge, MA 02138, USA;
67.NCSA, University of Illinois, 1205 W. Clark St., Urbana, IL 61801, USA;
68.Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, R. do Matão, 1226, São Paulo, SP 05508-090, Brazil;
69.Dipartimento di Fisica, Università degli Studi di Cagliari, SP Monserrato-Sestu km 0.7, I-09042 Monserrato (CA), Italy;
70.INAF—Osservatorio Astronomico di Cagliari, via della Scienza 5, I-09047 Selargius (CA), Italy;
71.INFN, sezione di Cagliari, I-09042 Monserrato (CA), Italy;
72.CP3-Origins, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark;
73.Instituto Nacional de Astrofísica, Óptica y Electrónica. Apartado Postal 51 y 216, 72000. Puebla Pue., México;
74.Consejo Nacional de Ciencia y Tecnologìa, Av. Insurgentes Sur 1582, 03940, Ciudad de México, México;
75.Key Laboratory for Research in Galaxies and Cosmology, Chinese Academy of Sciences, Shanghai 200030, People's Republic of China;
76.Mizusawa VLBI Observatory, National Astronomical Observatory of Japan, 2-12 Hoshigaoka, Mizusawa, Oshu, Iwate 023-0861, Japan;
77.Department of Astronomical Science, The Graduate University for Advanced Studies (SOKENDAI), 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan;
78.NOVA Sub-mm Instrumentation Group, Kapteyn Astronomical Institute, University of Groningen, Landleven 12, 9747 AD Groningen, The Netherlands;
79.Department of Astronomy, School of Physics, Peking University, Beijing 100871, People's Republic of China;
80.Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, People's Republic of China;
81.Department of Astronomy, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan;
82.The Institute of Statistical Mathematics, 10-3 Midori-cho, Tachikawa, Tokyo, 190-8562, Japan;
83.Department of Statistical Science, The Graduate University for Advanced Studies (SOKENDAI), 10-3 Midori-cho, Tachikawa, Tokyo 190-8562, Japan;
84.Kavli Institute for the Physics and Mathematics of the Universe, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, 277-8583, Japan;
85.Leiden Observatory, Leiden University, Postbus 2300, 9513 RA Leiden, The Netherlands;
86.ASTRAVEO LLC, P.O. Box 1668, Gloucester, MA 01931, USA;
87.Applied Materials Inc., 35 Dory Road, Gloucester, MA 01930, USA;
88.Institute for Astrophysical Research, Boston University, 725 Commonwealth Ave., Boston, MA 02215, USA;
89.Institute for Cosmic Ray Research, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8582, Japan;
90.Joint Institute for VLBI ERIC (JIVE), Oude Hoogeveensedijk 4, 7991 PD Dwingeloo, The Netherlands;
91.Department of Astronomy and Atmospheric Sciences, Kyungpook National University, Daegu 702-701, Republic of Korea;
92.Kogakuin University of Technology & Engineering, Academic Support Center, 2665-1 Nakano, Hachioji, Tokyo 192-0015, Japan;
93.Graduate School of Science and Technology, Niigata University, 8050 Ikarashi 2-no-cho, Nishi-ku, Niigata 950-2181, Japan;
94.Physics Department, National Sun Yat-Sen University, No. 70, Lien-Hai Road, Kaosiung City 80424, Taiwan, R.O.C.;
95.National Optical Astronomy Observatory, 950 N. Cherry Ave., Tucson, AZ 85719, USA;
96.Department of Physics, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong;
97.School of Astronomy and Space Science, Nanjing University, Nanjing 210023, People's Republic of China;
98.Key Laboratory of Modern Astronomy and Astrophysics, Nanjing University, Nanjing 210023, People's Republic of China;
99.INAF-Istituto di Radioastronomia, Via P. Gobetti 101, I-40129 Bologna, Italy;
100.INAF-Istituto di Radioastronomia & Italian ALMA Regional Centre, Via P. Gobetti 101, I-40129 Bologna, Italy;
101.Department of Physics, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei 10617, Taiwan, R.O.C;
102.Instituto de Radioastronomía y Astrofísica, Universidad Nacional Autónoma de México, Morelia 58089, México;
103.Yunnan Observatories, Chinese Academy of Sciences, 650011 Kunming, Yunnan Province, People's Republic of China;
104.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012, People's Republic of China;
105.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 650011 Kunming, People's Republic of China;
106.Anton Pannekoek Institute for Astronomy, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands;
107.Gravitation and Astroparticle Physics Amsterdam (GRAPPA) Institute, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands;
108.Department of Astrophysical Sciences, Peyton Hall, Princeton University, Princeton, NJ 08544, USA;
109.Science Support Office, Directorate of Science, European Space Research and Technology Centre (ESA/ESTEC), Keplerlaan 1, 2201 AZ Noordwijk, The Netherlands;
110.School of Physics and Astronomy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, People's Republic of China;
111.Institut de Radioastronomie Millimétrique (IRAM), Avenida Divina Pastora 7, Local 20, E-18012, Granada, Spain;
112.Astronomy Department, Universidad de Concepción, Casilla 160-C, Concepción, Chile;
113.National Institute of Technology, Hachinohe College, 16-1 Uwanotai, Tamonoki, Hachinohe City, Aomori 039-1192, Japan;
114.Research Center for Astronomy, Academy of Athens, Soranou Efessiou 4, 115 27 Athens, Greece;
115.Department of Physics, Villanova University, 800 Lancaster Avenue, Villanova, PA 19085, USA;
116.Physics Department, Washington University, CB 1105, St. Louis, MO 63130, USA;
117.Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul, Republic of Korea;
118.School of Physics, Georgia Institute of Technology, 837 State St. NW, Atlanta, GA 30332, USA;
119.Department of Astronomy and Space Science, Kyung Hee University, 1732, Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 17104, Republic of Korea;
120.Canadian Institute for Theoretical Astrophysics, University of Toronto, 60 St. George Street, Toronto, ON M5S 3H8, Canada;
121.Dunlap Institute for Astronomy and Astrophysics, University of Toronto, 50 St. George Street, Toronto, ON M5S 3H4, Canada;
122.Canadian Institute for Advanced Research, 180 Dundas St. W, Toronto, ON M5G 1Z8, Canada;
123.Radio Astronomy Laboratory, University of California, Berkeley, CA 94720, USA;
124.Institute of Astrophysics, Foundation for Research and Technology—Hellas, Voutes, 7110 Heraklion, Greece;
125.Department of Physics, National Taiwan Normal University, No. 88, Sec. 4, Tingzhou Rd., Taipei 116, Taiwan, R.O.C.;
126.Center of Astronomy and Gravitation, National Taiwan Normal University, No. 88, Sec. 4, Tingzhou Road, Taipei 116, Taiwan, R.O.C.;
127.Finnish Centre for Astronomy with ESO, FI-20014 University of Turku, Finland;
128.Aalto University Metsähovi Radio Observatory, Metsähovintie 114, FI-02540 Kylmälä, Finland;
129.Gemini Observatory/NSF NOIRLab, 670 N. A'ohōkū Place, Hilo, HI 96720, USA;
130.Frankfurt Institute for Advanced Studies, Ruth-Moufang-Strasse 1, D-60438 Frankfurt, Germany;
131.School of Mathematics, Trinity College, Dublin 2, Ireland;
132.Department of Physics, University of Toronto, 60 St. George Street, Toronto, ON M5S 1A7, Canada;
133.Department of Physics, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan;
134.Hiroshima Astrophysical Science Center, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan;
135.Aalto University Department of Electronics and Nanoengineering, PL 15500, FI-00076 Aalto, Finland;
136.Department of Astronomy, Yonsei University, Yonsei-ro 50, Seodaemun-gu, 03722 Seoul, Republic of Korea;
137.National Biomedical Imaging Center, Peking University, Beijing 100871, People's Republic of China;
138.College of Future Technology, Peking University, Beijing 100871, People's Republic of China;
139.Department of Physics and Astronomy, University of Lethbridge, Lethbridge, AB T1K 3M4, Canada;
140.Netherlands Organisation for Scientific Research (NWO), Postbus 93138, 2509 AC Den Haag, The Netherlands;
141.Department of Physics and Astronomy, Seoul National University, Gwanak-gu, Seoul 08826, Republic of Korea;
142.University of New Mexico, Department of Physics and Astronomy, Albuquerque, NM 87131, USA;
143.Jeremiah Horrocks Institute, University of Central Lancashire, Preston PR1 2HE, UK;
144.Physics Department, Brandeis University, 415 South Street, Waltham, MA 02453, USA;
145.Tuorla Observatory, Department of Physics and Astronomy, University of Turku, Finland;
146.Radboud Excellence Fellow of Radboud University, Nijmegen, The Netherlands;
147.School of Natural Sciences, Institute for Advanced Study, 1 Einstein Drive, Princeton, NJ 08540, USA;
148.School of Physics, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, People's Republic of China;
149.Mullard Space Science Laboratory, University College London, Holmbury St. Mary, Dorking, Surrey, RH5 6NT, UK;
150.School of Astronomy and Space Sciences, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, People's Republic of China;
151.Astronomy Department, University of Science and Technology of China, Hefei 230026, People's Republic of China;
152.Department of Physics and Astronomy, Michigan State University, 567 Wilson Rd., East Lansing, MI 48824, USA
推荐引用方式
GB/T 7714		 Akiyama, Kazunori,Alberdi, Antxon,Alef, Walter,et al. First M87 Event Horizon Telescope Results. IX. Detection of Near-horizon Circular Polarization[J]. ASTROPHYSICAL JOURNAL LETTERS,2023,957(2).
APA Akiyama, Kazunori.,Alberdi, Antxon.,Alef, Walter.,Algaba, Juan Carlos.,Anantua, Richard.,...&Zhao, Shan-Shan.(2023).First M87 Event Horizon Telescope Results. IX. Detection of Near-horizon Circular Polarization.ASTROPHYSICAL JOURNAL LETTERS,957(2).
MLA Akiyama, Kazunori,et al."First M87 Event Horizon Telescope Results. IX. Detection of Near-horizon Circular Polarization".ASTROPHYSICAL JOURNAL LETTERS 957.2(2023).
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