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内蒙古自治区呼和浩特市赛罕区大学西街235号 邮编: 010021
作者机构:MIT Haystack Observ 99 Millstone Rd Westford MA 01886 USA Natl Astron Observ Japan 2-21-1 Osawa Mitaka Tokyo 1818588 Japan Harvard Univ Black Hole Initiat 20 Garden St Cambridge MA 02138 USA CSIC Inst Astrofis Andalucia Glorieta Astron S-N E-18008 Granada Spain Max Planck Inst Radioastron Hugel 69 D-53121 Bonn Germany Univ Malaya Fac Sci Dept Phys Kuala Lumpur 50603 Malaysia Ctr Astrophys Harvard & Smithsonian 60 Garden St Cambridge MA 02138 USA Univ Texas San Antonio Dept Phys & Astron One UTSA Circle San Antonio TX 78249 USA Acad Sinica Inst Astron & Astrophys 11F Astron Math BldgAS NTU 1Sec 4Roosevelt Rd Taipei 10617 Taiwan Univ Valencia Dept Astron & Astrofis C Dr Moliner 50 E-46100 Valencia Spain Univ Valencia Observ Astron C Catedrat Jose Beltran 2 E-46980 Valencia Spain Univ Arizona Steward Observ 933 N Cherry Ave Tucson AZ 85721 USA Univ Arizona Dept Astron 933 N Cherry Ave Tucson AZ 85721 USA Yale Univ Yale Ctr Astron & Astrophys 52 Hillhouse Ave New Haven CT 06511 USA Univ Illinois Dept Phys 1110 West Green St Urbana IL 61801 USA Fermilab Natl Accelerator Lab MS209POB 500 Batavia IL 60510 USA Univ Chicago Dept Astron & Astrophys 5640 South Ellis Ave Chicago IL 60637 USA East Asian Observ 660 N Aohoku Pl Hilo HI 96720 USA James Clerk Maxwell Telescope JCMT 660 N Aohoku Pl Hilo HI 96720 USA CALTECH 1200 East Calif Blvd Pasadena CA 91125 USA Acad Sinica Inst Astron & Astrophys 645 N Aohoku Pl Hilo HI 96720 USA Univ Hawaii Manoa Dept Phys & Astron 2505 Correa Rd Honolulu HI 96822 USA McGill Univ Dept Phys 3600 Rue Univ Montreal PQ H3A 2T8 Canada McGill Univ McGill Space Inst 3550 Rue Univ Montreal PQ H3A 2A7 Canada Inst Radioastron Millimetr IRAM 300 Rue Piscine F-38406 St Martin Dheres France Radboud Univ Nijmegen Inst Math Astrophys & Particle Phys IMAPP Dept Astrophys POB 9010 NL-6500 GL Nijmegen Netherlands Perimeter Inst Theoret Phys 31 Caroline St N Waterloo ON N2L 2Y5 Canada Univ Waterloo Dept Phys & Astron 200 Univ Ave Waterloo ON N2L 3G1 Canada Univ Waterloo Waterloo Ctr Astrophys Waterloo ON N2L 3G1 Canada Univ Massachusetts Dept Astron Amherst MA 01003 USA Korea Astron & Space Sci Inst Daedeok Daero 776 Daejeon 34055 South Korea Univ Sci & Technol Gajeong Ro 217 Daejeon 34113 South Korea Univ Chicago Kavli Inst Cosmol Phys 5640 South Ellis Ave Chicago IL 60637 USA Univ Chicago Dept Phys 5720 South Ellis Ave Chicago IL 60637 USA Univ Chicago Enrico Fermi Inst 5640 South Ellis Ave Chicago IL 60637 USA Chalmers Univ Technol Dept Space Earth & Environm Onsala Space Observ SE-43992 Onsala Sweden Princeton Univ Princeton Ctr Theoret Sci Jadwin Hall Princeton NJ 08544 USA NASA Hubble Fellowship Program Washington DC USA Univ Arizona Data Sci Inst 1230 N Cherry Ave Tucson AZ 85721 USA Univ Arizona Program Appl Math 617 N Santa Rita Tucson AZ 85721 USA Cornell Univ Cornell Ctr Astrophys & Planetary Sci Ithaca NY 14853 USA Chinese Acad Sci Shanghai Astron Observ 80 Nandan Rd Shanghai 200030 Peoples R China Chinese Acad Sci Key Lab Radio Astron Nanjing 210008 Peoples R China Fairfield Univ Phys Dept 1073 North Benson Rd Fairfield CT 06824 USA Univ Illinois Dept Astron 1002 West Green St Urbana IL 61801 USA Goethe Univ Frankfurt Inst Theoret Phys Max von Laue Str 1 D-60438 Frankfurt Germany Shanghai Jiao Tong Univ Tsung Dao Lee Inst Shengrong Rd 520 Shanghai 201210 Peoples R China Natl Astron Observ Japan Mizusawa VLBI Observ 2-12 Hoshigaoka Oshu Iwate 0230861 Japan Grad Univ Adv Studies SOKENDAI Dept Astron Sci 2-21-1 Osawa Mitaka Tokyo 1818588 Japan Columbia Univ Dept Astron 550 W 120th St New York NY 10027 USA Columbia Univ Columbia Astrophys Lab 550 W 120th St New York NY 10027 USA Flatiron Inst Ctr Computat Astrophys 162 Fifth Ave New York NY 10010 USA Univ Napoli Federico II Compl Univ Monte S Angelo Dipartimento Fis E Pancini Edificio GVia Cinthia I-80126 Naples Italy Compl Univ Monte S Angelo Ist Nazl Fis Nucl Sez Napoli Edificio GVia Cinthia I-80126 Naples Italy Univ Witwatersrand Wits Ctr Astrophys 1 Jan Smuts Ave ZA-2050 Johannesburg South Africa Univ Pretoria Dept Phys ZA-0028 Pretoria South Africa Rhodes Univ Ctr Radio Astron Tech & Technol Dept Phys & Elect ZA-6140 Makhanda South Africa ASTRON Oude Hoogeveensedijk 4 NL-7991 PD Dwingeloo Netherlands Univ Paris Observ Paris Sorbonne Univ CNRSLESIAUniv PSL 5 Pl Jules Janssen F-92195 Meudon France Univ Colorado JILA Boulder CO 80309 USA Univ Colorado Dept Astrophys & Planetary Sci Boulder CO 80309 USA Chinese Acad Sci Natl Astron Observ 20A Datun Rd Beijing 100101 Peoples R China Cumbres Observ 6740 Cortona DrSuite 102 Goleta CA 93117 USA Univ Calif Santa Barbara Dept Phys Santa Barbara CA 93106 USA Natl Radio Astron Observ 520 Edgemont Rd Charlottesville VA 22903 USA MIT Dept Elect Engn & Comp Sci 32-D47677 Massachusetts Ave Cambridge MA 02142 USA Google Res 355 Main St Cambridge MA 02142 USA Univ Wurzburg Inst Theoret Phys & Astrophys Emil Fischer Str 31 D-97074 Wurzburg Germany Harvard Univ Dept Hist Sci Cambridge MA 02138 USA Harvard Univ Dept Phys Cambridge MA 02138 USA Univ Illinois NCSA 1205 W Clark St Urbana IL 61801 USA Univ Cagliari Dipartimento Fis SP Monserrato Sestu Km 0-7 I-09042 Monserrato Italy INAF Osservatorio Astron Cagliari Via Sci 5 I-09047 Selargius CA Italy Univ Southern Denmark CP3 Origins Campusvej 55 DK-5230 Odense M Denmark Inst Nacl Astrofis Opt & Electr Apartado Postal 51 & 216 Puebla 72000 Pue Mexico Consejo Nacl Ciencia & Technol Av Insurgentes Sur 1582 Ciudad De Mexico 03940 Mexico Chinese Acad Sci Key Lab Res Galaxies & Cosmol Shanghai 200030 Peoples R China Univ Groningen Kapteyn Astron Inst NOVA Sub Mm Instrumentat Grp Landleven 12 NL-9747 AD Groningen Netherlands Peking Univ Sch Phys Dept Astron Beijing 100871 Peoples R China Peking Univ Kavli Inst Astron & Astrophys Beijing 100871 Peoples R China Univ Tokyo Grad Sch Sci Dept Astron Bunkyo Ku 7-3-1 Hongo Tokyo 1130033 Japan Inst Stat Math 10-3 Midori Cho Tachikawa Tokyo 1908562 Japan Grad Univ Adv Studies SOKENDAI Dept Stat Sci 10-3 Midori Cho Tachikawa Tokyo 1908562 Japan Univ Tokyo Kavli Inst Phys & Math Universe 5-1-5 Kashiwanoha Kashiwa Chiba 2778583 Japan Leiden Univ Leiden Observ Postbus 2300 NL-9513 RA Leiden Netherlands ASTRAVEO LLC POB 1668 Gloucester MA 01931 USA Boston Univ Inst Astrophys Res 725 Commonwealth Ave Boston MA 02215 USA Univ Tokyo Inst Cosm Ray Res 5-1-5 Kashiwanoha Kashiwa Chiba 2778582 Japan Joint Inst VLBI ERIC JIVE Oude Hoogeveensedijk 4 NL-7991 PD Dwingeloo Netherlands Kyungpook Natl Univ Dept Astron & Atmospher Sci Daegu 702701 South Korea Kogakuin Univ Technol & Engn Acad Support Ctr 2665-1 Nakano Hachioji Tokyo 1920015 Japan Niigata Univ Nishi Ku 8050 Ikarashi Nino Cho Niigata 9502181 Japan Natl Sun Yat Sen Univ Phys Dept 70 Lien Hai Rd Kaohsiung 80424 Taiwan Natl Opt Astron Observ 950 N Cherry Ave Tucson AZ 85719 USA Chinese Univ Hong Kong Dept Phys Shatin Hong Kong Peoples R China Nanjing Univ Sch Astron & Space Sci Nanjing 210023 Peoples R China Nanjing Univ Key Lab Modern Astron & Astrophys Nanjing 210023 Peoples R China INAF Ist Radioastron Via P Gobetti 101 I-40129 Bologna Italy Italian ALMA Reg Ctr Via P Gobetti 101 I-40129 Bologna Italy Natl Taiwan Univ Dept Phys 1Sec 4Roosevelt Rd Taipei 10617 Taiwan Univ Nacl Autonoma Mexico Inst Radioastron & Astrofis Morelia 58089 Michoacan Mexico Univ Nacl Autonoma Mexico Inst Astron Apdo Postal 70-264 Ciudad De Mexico Mexico Chinese Acad Sci Yunnan Observ Kunming 650011 Yunnan Peoples R China Chinese Acad Sci Ctr Astron Megasci 20A Datun Rd Beijing 100012 Peoples R China Chinese Acad Sci Key Lab Struct & Evolut Celestial Objects Kunming 650011 Yunnan Peoples R China Univ Amsterdam Anton Pannekoek Inst Astron Sci Pk 904 NL-1098 XH Amsterdam Netherlands Univ Amsterdam Gravitat & Astroparticle Phys Amsterdam GRAPPA In Sci Pk 904 NL-1098 XH Amsterdam Netherlands Inst Adv Study Sch Nat Sci 1 Einstein Dr Princeton NJ 08540 USA European Space Res & Technol Ctr ESA ESTEC Directorate Sci Sci Support Off Keplerlaan 1 NL-2201 AZ Noordwijk Netherlands Shanghai Jiao Tong Univ Sch Phys & Astron 800 Dongchuan Rd Shanghai 200240 Peoples R China Inst Radioastron Millimetr IRAM Ave Divina Pastora 7Local 20 E-18012 Granada Spain Univ Concepcion Astron Dept Casilla 160-C Concepcion Chile Hachinohe Coll Natl Inst Technol 16-1 Uwanotai Hachinohe Aomori 0391192 Japan South African Radio Astron Observ ZA-7925 Cape Town South Africa Natl & Kapodistrian Univ Athens Dept Phys GR-15783 Zografos Greece Villanova Univ Dept Phys 800 Lancaster Ave Villanova PA 19085 USA Washington Univ Phys Dept CB 1105 St Louis MO 63130 USA Sejong Univ 209 Neungdong Ro Seoul South Korea Univ Toronto Canadian Inst Theoret Astrophys 60 St George St Toronto ON M5S 3H8 Canada Univ Toronto Dunlap Inst Astron & Astrophys 50 St George St Toronto ON M5S 3H4 Canada Canadian Inst Adv Res 180 Dundas St W Toronto ON M5G 1Z8 Canada Univ Calif Berkeley Radio Astron Lab Berkeley CA 94720 USA Univ Coll Cork Dept Phys Kane BldgColl Rd Cork T12 K8AF Ireland Natl Taiwan Normal Univ Dept Phys 88Sec 4Tingzhou Rd Taipei 116 Taiwan Natl Taiwan Normal Univ Ctr Astron & Gravitat 88Sec 4Tingzhou Rd Taipei 116 Taiwan Univ Turku Finnish Ctr Astron ESO FI-20014 Turku Finland Aalto Univ Metsahovi Radio Observ Metsahovintie 114 FI-02540 Kylmala Finland Gemini Observ NSF NOIRLab 670 N Aohoku Pl Hilo HI 96720 USA Frankfurt Inst Adv Studies Ruth Moufang Str 1 D-60438 Frankfurt Germany Trinity Coll Dublin Sch Math Dublin 2 Ireland Princeton Univ Dept Astrophys Sci Peyton Hall Princeton NJ 08544 USA Tokyo Inst Technol Dept Phys Meguro Ku 2-12-1 Ookayama Tokyo 1528551 Japan Hiroshima Univ Hiroshima Astrophys Sci Ctr 1-3-1 Kagamiyama Higashihiroshima Hiroshima 7398526 Japan Aalto Univ Dept Elect & Nanoengn PL 15500 FI-00076 Aalto Finland Yonsei Univ Dept Astron Yonsei Ro 50 Seoul 03722 South Korea Texas Tech Univ Dept Phys & Astron Lubbock TX 79409 USA Netherlands Org Sci Res NWO Postbus 93138 NL-2509 AC The Hague Netherlands Seoul Natl Univ Dept Phys & Astron Seoul 08826 South Korea Univ New Mexico Dept Phys & Astron Albuquerque NM 87131 USA Univ Cent Lancashire Jeremiah Horrocks Inst Preston PR1 2HE Lancs England Brandeis Univ Phys Dept 415 South St Waltham MA 02453 USA Univ Turku Dept Phys & Astron Tuorla Observ Turku Finland Radboud Univ Nijmegen Nijmegen Netherlands Princeton Univ Princeton Grav Initiat Princeton NJ 08544 USA Huazhong Univ Sci & Technol Sch Phys Wuhan 430074 Hubei Peoples R China Univ Coll London Mullard Space Sci Lab Dorking RH5 6NT Surrey England Univ Chinese Acad Sci Sch Astron & Space Sci 19A Yuquan Rd Beijing 100049 Peoples R China Univ Sci & Technol China Astron Dept Hefei 230026 Peoples R China Bard Coll 30 Campus Rd Annandale On Hudson NY 12504 USA European Southern Observ Alonso de Cordova 3107Casilla 19001 Santiago Chile Univ Vermont Burlington VT 05405 USA NRAO Technol Ctr Natl Radio Astron Observ 1180 Boxwood Estate Rd Charlottesville VA 22903 USA Gemini Observ 670 N Aohoku Pl Hilo HI 96720 USA Univ Bonn Inst Geodesy & Geoinformat D-53113 Bonn Germany Natl Radio Astron Observ Socorro NM 87801 USA SRON Netherlands Inst Space Res Landleven 12 NL-9747 AD Groningen Netherlands Natl Chung Shan Inst Sci & Technol 566Ln 134Longyuan Rd Taoyuan 134 Taiwan Univ Colorado Dept Astrophys & Planetary Sci CASA Boulder CO 80309 USA Western Univ 1151 Richmond St London ON N6A 3K7 Canada CALTECH Space Radiat Lab 1200 East Calif Blvd Pasadena CA 91125 USA Drexel Univ 3141 Chestnut St Philadelphia PA 19104 USA Royal Netherlands Meteorol Inst Res & Dev Weather & Climate Models Utrechtseweg 297 NL-3731 GA De Bilt Netherlands Univ Colorado Dept Phys Boulder CO 80309 USA Osaka Prefecture Univ Sakai Osaka 5998531 Japan Joint ALMA Observ Alonso de Cordova 3107 Vitacura 7630355 Santiago De Chi Chile Univ Arizona MMT Observ POB 210065 Tucson AZ 85721 USA SKA Observ Jodrell Bank Macclesfield SK11 9FT Cheshire England European Southern Observ Karl Schwarzschild Str 2 D-85478 Garching Germany Natl Cheng Kung Univ Dept Phys Tainan 701401 Taiwan Univ Space Res Assoc SOFIA Sci Ctr NASA Ames Res Ctr Moffett Field CA 94035 USA Coorporac Mexicana Invest Mat SA CV Ciencia & Tec Colonia Saltillo 400 Saltillo 25290 Coahuila Mexico Pontificia Univ Catolica Chile Ctr Astroingn AIUC Av Vicuna Mackena 4860 Santiago Chile Harvard Univ John A Paulson Sch Engn & Appl Sci 29 Oxford St Cambridge MA 02138 USA Kavli Inst Theoret Phys 2411 Kohn Hall Santa Barbara CA 93111 USA Univ Michigan Dept Astron 1085 South Univ Ave Ann Arbor MI 48109 USA Univ Americas Puebla Sta Catarina Martir S-N Cholula 72810 Mexico
出 版 物:《ASTROPHYSICAL JOURNAL LETTERS》 (天体物理学杂志通讯)
年 卷 期:2022年第930卷第2期
页 面:L12-L12页
核心收录:
基 金:Academia Sinica Academy of Finland [274477, 284495, 312496, 315721] Agencia Nacional de Investigacion y Desarrollo (ANID), Chile [NCN19_058] Fondecyt Alexander von Humboldt Stiftung Alfred P. Sloan Research Fellowship European ALMA Regional Centre node in the Netherlands NL astronomy research network NOVA ALMA North America Development Fund Black Hole Initiative - John Templeton Foundation Gordon and Betty Moore Foundation China Scholarship Council China Postdoctoral Science Foundation fellowship [2020M671266] Consejo Nacional de Ciencia y Tecnologia (CONACYT, Mexico) [U0004246083, U0004-259839, F0003-272050, M0037-279006, F0003-281692, 104497, 275201, 263356] 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 National Supercomputers, Cartesius and Snellius (NWO) [2021.013] EACOA Fellowship - East Asia Core Observatories Association European Research Council (ERC) European Union [730562, 101018682] Generalitat Valenciana [APOSTD/2018/177] GenT Program [CIDEGENT/2018/021] MICINN [PID2019-108995GB-C22] European Research Council Institute for Advanced Study Istituto Nazionale di Fisica Nucleare (INFN) sezione di Napoli, iniziative specifiche TEONGRAV International Max Planck Research School for Astronomy and Astrophysics at the University of Cologne DFG [FR 4069/2-1] Simons Foundation Japan Ministry of Education, Culture, Sports, Science and Technology (MEXT) [JPMXP1020200109] Japanese Government (Monbukagakusho: MEXT) Scholarship Japan Society for the Promotion of Science (JSPS) [JP17J08829] Joint Institute for Computational Fundamental Science, Japan Key Research Program of Frontier Sciences, Chinese Academy of Sciences (CAS) [QYZDJ-SSW-SLH057, QYZDJSSW-SYS008, ZDBS-LY-SLH011] Leverhulme Trust Early Career Research Fellowship Max-PlanckGesellschaft (MPG) Max Planck Partner Group of the MPG CAS MEXT/JSPS KAKENHI [18KK0090, JP21H01137, JP18H03721, JP18K13594, 18K03709, JP19K14761, 18H01245, 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 [103-2119-M-001-010MY2, 105-2112-M-001-025-MY3, 105-2119-M-001-042, 1062112-M-001-011, 106-2119-M-001-013, 106-2119-M-001027, 106-2923-M-001-005, 107-2119-M-001-017, 107-2119M-001-020, 107-2119-M-001-041] The Ministry of Science and Technology (MOST) of Taiwan [107-2119-M-110-005, 1072923-M-001-009, 108-2112-M-001-048, 108-2112-M-001051, 108-2923-M-001-002, 109-2112-M-001-025, 109-2124M-001-005, 109-2923-M-001-001, 110-2112-M-003-007MY2, 110-2112-M-001-033, 110-2124-M-001-007, 1102923-M-001-001] Ministry of Education (MoE) of Taiwan Yushan Young Scholar Program Physics Division, National Center for Theoretical Sciences of Taiwan National Aeronautics and Space Administration (NASA) [80NSSC20K1567, 80NSSC20K0527, 80NSSC20K0645] NASA Hubble Fellowship - Space Telescope Science Institute [HST-HF2-51431.001-A, NAS5-26555] National Institute of Natural Sciences (NINS) of Japan National Key Research and Development Program of China [2016YFA0400704, 2017YFA0402703, 2016YFA0400702, 2017YFA0402700] NSF Astronomy and Astrophysics Postdoctoral Fellowship [AST1903847] Natural Science Foundation of China [11650110427, 10625314, 11721303, 11725312, 11873028, 11933007, 11991052, 11991053, 12192220, 12192223] Natural Sciences and Engineering Research Council of Canada (NSERC) National Youth Thousand Talents Program of China National Research Foundation of Korea (Global PhD Fellowship Grant) [NRF-2015H1A2A1033752] National Research Foundation of Korea (Korea Research Fellowship Program) [NRF-2015H1D3A1066561] National Research Foundation of Korea (Brain Pool Program) [2019H1D3A1A01102564] National Research Foundation of Korea (Basic Research Support Grant) [2019R1F1A1059721, 2021R1A6A3A01086420, 2022R1C1C1005255] Netherlands Research School for Astronomy (NOVA) Virtual Institute of Accretion (VIA) postdoctoral fellowships Swedish Research Council [2017-00648] Perimeter Institute for Theoretical Physics (Government of Canada through the Department of Innovation, Science and Economic Development) Perimeter Institute for Theoretical Physics (Province of Ontario through the Ministry of Research, Innovation and Science) Spanish Ministerio de Ciencia e Innovacion [PGC2018-098915-B-C21, AYA2016-80889-P, PID2019108995GB-C21, PID2020-117404GB-C21] University of Pretoria Shanghai Pilot Program for Basic Research, Chinese Academy of Science, Shanghai Branch [JCYJ-SHFY-2021-013] State Agency for Research of the Spanish MCIU through the "Center of Excellence Severo Ochoa" award [SEV-20170709] Spinoza Prize [SPI 78-409] South African Research Chairs Initiative, through the South African Radio Astronomy Observatory (SARAO) Toray Science Foundation Swedish Research Council (VR) US Department of Energy (USDOE) through the Los Alamos National Laboratory [89233218CNA000001] YCAA Prize Postdoctoral Fellowship Office of Science of the U.S. Department of Energy [DE-AC0500OR22725] Smithsonian Institution Science and Technologies Facility Council (UK) CNRS (Centre National de la Recherche Scientifique, France) MPG (Max-PlanckGesellschaft, Germany) IGN (Instituto Geografico Nacional, Spain) State of Arizona NSF National Science Foundation [OPP-1852617, OAC-1818253] Kavli Institute of Cosmological Physics at the University of Chicago NSF [ACI-1548562, DBI0735191, DBI-1265383, DBI-1743442] CyVerse National Science Foundation U.S. Department of Energy Office of Science Compute Ontario Calcul Quebec Compute Canada National Science Foundation (NSF) [AST-0096454, AST-0352953, AST0521233, AST-0705062, AST-0905844, AST-0922984, AST1126433, AST-1140030, DGE-1144085, AST-1207704, AST1207730, AST-1207752, MRI-1228509] The National Science Foundation (NSF) [OPP-1248097, AST1310896, AST-1440254, AST-1555365, AST-1614868, AST1615796, AST-1715061, AST-1716327, AST-1716536, OISE1743747, AST-1816420, AST-1935980, AST-2034306] Chandra [DD7-18089X, TM6-17006X] International Max Planck Research School for Astronomy and Astrophysics at the University of Bonn Allegro University of Amsterdam Leiden University Radboud University European Research Council (ERC) Funding Source: European Research Council (ERC) STFC [ST/V000268/1] Funding Source: UKRI Grants-in-Aid for Scientific Research [22H00157, 21H04488] Funding Source: KAKEN
主 题:Black holes Kerr black holes Rotating black holes Heterodyne interferometry Galactic center
摘 要:We present the first Event Horizon Telescope (EHT) observations of Sagittarius A* (Sgr A*), the Galactic center source associated with a supermassive black hole. These observations were conducted in 2017 using a global interferometric array of eight telescopes operating at a wavelength of lambda = 1.3 mm. The EHT data resolve a compact emission region with intrahour variability. A variety of imaging and modeling analyses all support an image that is dominated by a bright, thick ring with a diameter of 51.8 +/- 2.3 mu as (68% credible interval). The ring has modest azimuthal brightness asymmetry and a comparatively dim interior. Using a large suite of numerical simulations, we demonstrate that the EHT images of Sgr A* are consistent with the expected appearance of a Kerr black hole with mass similar to 4 x 10(6) M (circle dot), which is inferred to exist at this location based on previous infrared observations of individual stellar orbits, as well as maser proper-motion studies. Our model comparisons disfavor scenarios where the black hole is viewed at high inclination (i 50 degrees), as well as nonspinning black holes and those with retrograde accretion disks. Our results provide direct evidence for the presence of a supermassive black hole at the center of the Milky Way, and for the first time we connect the predictions from dynamical measurements of stellar orbits on scales of 10(3)-10(5) gravitational radii to event-horizon-scale images and variability. Furthermore, a comparison with the EHT results for the supermassive black hole M87* shows consistency with the predictions of general relativity spanning over three orders of magnitude in central mass.