PMO OpenIR
First M87 Event Horizon Telescope Results. IV. Imaging the Central Supermassive Black Hole
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; Freeman, William T.42,43; Friberg, Per13; Fromm, Christian M.37; Gomez, Jose L.5; Galison, Peter4,44,45; Gammie, Charles F.46,47; Garcia, Roberto17; Gentaz, Olivier17; Georgiev, Boris20,21; Goddi, Ciriaco18,48; Gold, Roman37; Gu, Minfeng31,49; Gurwell, Mark12; Hada, Kazuhiro34,35; Hecht, Michael H.2; Hesper, Ronald50; Ho, Luis C.51,52; Ho, Paul7; Honma, Mareki34,35; Huang, Chih-Wei L.7; Huang, Lei31,49; Hughes, David H.53; Ikeda, Shiro3,54,55,56; Inoue, Makoto7; Issaoun, Sara18; James, David J.4,12; Jannuzi, Buell T.; Janssen, Michael18; Jeter, Britton20,21; Jiang, Wu31; Johnson, Michael D.4,12; Jorstad, Svetlana57,58; Jung, Taehyun22; Karami, Mansour19,20; Karuppusamy, Ramesh6; Kawashima, Tomohisa3; Keating, Garrett K.12; Kettenis, Mark59; Kim, Jae-Young6; Kim, Junhan10,11; Kim, Jongsoo22; Kino, Motoki3,60; Koay, Jun Yi7; Koch, Patrick M.7; Koyama, Shoko7; Kramer, Michael6; Kramer, Carsten17; Krichbaum, Thomas P.6; Kuo, Cheng-Yu61; Lauer, Tod R.62; Lee, Sang-Sung22; Li, Yan-Rong63; Li, Zhiyuan64,65; Lindqvist, Michael33; Liu, Kuo6; Liuzzo, Elisabetta66; Lo, Wen-Ping7,67; Lobanov, Andrei P.6; Loinard, Laurent68,69; Lonsdale, Colin2; Lu, Ru-Sen6,31; MacDonald, Nicholas R.6; Mao, Jirong70,71,72; Markoff, Sera30,73; Marrone, Daniel P.10,11; Marscher, Alan P.57; Marti-Vidal, Ivan33,74; Matsushita, Satoki7; Matthews, Lynn D.2; Medeiros, Lia10,11,75; Menten, Karl M.6; Mizuno, Yosuke37; Mizuno, Izumi13; Moran, James M.4,12; Moriyama, Kotaro2; Moscibrodzka, Monika18; Mueller, Cornelia6,18; Nagai, Hiroshi3,34,35; Nagar, Neil M.76; Nakamura, Masanori7; Narayan, Ramesh4,12; Narayanan, Gopal77; Natarajan, Iniyan40; Neri, Roberto17; Ni, Chunchong20,21; Noutsos, Aristeidis6; Okino, Hiroki78; Olivares, Hector37; Oyama, Tomoaki; Ozel, Feryal10,11; Palumbo, Daniel C. M.4,12; Patel, Nimesh12; Pen, Ue-Li19,79,80,81; Pesce, Dominic W.4,12; Pietu, Vincent17; Plambeck, Richard82; PopStefanija, Aleksandar77; Porth, Oliver30,37; Prather, Ben46; Preciado-Lopez, Jorge A.19; Psaltis, Dimitrios10,11; Pu, Hung-Yi19; Ramakrishnan, Venkatessh76; Rao, Ramprasad16; Rawlings, Mark G.13; Raymond, Alexander W.4,12; Rezzolla, Luciano37; Ripperda, Bart37; Roelofs, Freek18; Rogers, Alan2,13,20,23; Ros, Eduardo6; Rose, Mel10,11; Roshanineshat, Arash10,11; Rottmann, Helge6; Roy, Alan L.6; Ruszczyk, Chet2; Ryan, Benjamin R.83,84; Rygl, Kazi L. J.66; Sanchez, Salvador85; Sanchez-Arguelles, David53,86; Sasada, Mahito87; Savolainen, Tuomas6,88,89; Schloerb, F. Peter77; Schuster, Karl-Friedrich17; Shao, Lijing6,52; Shen, Zhiqiang30,31; Small, Des59; Sohn, Bong Won22,23,90; SooHoo, Jason2; Tazaki, Fumie31; Tiede, Paul19,20,21; Tilanus, Remo P. J.18,48,91; Titus, Michael2; Toma, Kenji92,93; Torne, Pablo6,85; Trent, Tyler10,11; Trippe, Sascha94; Tsuda, Shuichiro; van Bemmel, Ilse59; van Langevelde, Huib Jan59,95; van Rossum, Daniel R.18; Wagner, Jan6; Wardle, John96; Weintroub, Jonathan4,12; Wex, Norbert6; Wharton, Robert6; Wielgus, Maciek4,12; Wong, George N.46; Wu, Qingwen97; Young, Andre18; Young, Ken12; Younsi, Ziri37,98; Yuan, Feng31,49,99; Yuan, Ye-Fei100; Zensus, J. Anton6; Zhao, Guangyao22; Zhao, Shan-Shan18,64; Zhu, Ziyan45; Farah, Joseph R.4,12,101; Meyer-Zhao, Zheng7,102; Michalik, Daniel103,104; Nadolski, Andrew47; Nishioka, Hiroaki7; Pradel, Nicolas7; Primiani, Rurik A.105; Souccar, Kamal77; Vertatschitsch, Laura12,105; Yamaguchi, Paul12
2019-04-10
Source PublicationASTROPHYSICAL JOURNAL LETTERS
ISSN2041-8205
Volume875Issue:1Pages:52
Corresponding AuthorAkiyama, Kazunori()
AbstractWe present the first Event Horizon Telescope (EHT) images of M87, using observations from April 2017 at 1.3 mm wavelength. These images show a prominent ring with a diameter of similar to 40 mu as, consistent with the size and shape of the lensed photon orbit encircling the "shadow" of a supermassive black hole. The ring is persistent across four observing nights and shows enhanced brightness in the south. To assess the reliability of these results, we implemented a two-stage imaging procedure. In the first stage, four teams, each blind to the others' work, produced images of M87 using both an established method (CLEAN) and a newer technique (regularized maximum likelihood). This stage allowed us to avoid shared human bias and to assess common features among independent reconstructions. In the second stage, we reconstructed synthetic data from a large survey of imaging parameters and then compared the results with the corresponding ground truth images. This stage allowed us to select parameters objectively to use when reconstructing images of M87. Across all tests in both stages, the ring diameter and asymmetry remained stable, insensitive to the choice of imaging technique. We describe the EHT imaging procedures, the primary image features in M87, and the dependence of these features on imaging assumptions.
Keywordblack hole physics galaxies: individual (M87) galaxies: jets techniques: high angular resolution techniques: image processing techniques: interferometric
DOI10.3847/2041-8213/ab0e85
WOS KeywordSELF-CALIBRATION ; HIGH-RESOLUTION ; JET ; INTERFEROMETRY ; RECONSTRUCTION ; IMPLEMENTATION ; DECONVOLUTION ; PRINCIPLES ; MOTION
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000464210800004
PublisherIOP PUBLISHING LTD
Citation statistics
Cited Times:33[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/24454
Collection中国科学院紫金山天文台
Corresponding AuthorAkiyama, Kazunori
Affiliation1.Natl Radio Astron Observ, 520 Edgemont Rd, Charlottesville, VA 22903 USA
2.MIT, Haystack Observ, 99 Millstone Rd, Westford, MA 01886 USA
3.Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan
4.Harvard Univ, Black Hole Initiat, 20 Garden St, Cambridge, MA 02138 USA
5.CSIC, Inst Astrofis Andalucia, Glorieta Astron S-N, E-18008 Granada, Spain
6.Max Planck Inst Radioastron, Hugel 69, D-53121 Bonn, Germany
7.Acad Sinica, Inst Astron & Astrophys, 11F Astron Math Bldg,AS NTU 1,Sec 4,Roosevelt Rd, Taipei 10617, Taiwan
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9.Univ Valencia, Observ Astron, C Catedratico Jose Beltran 2, E-46980 Valencia, Spain
10.Univ Arizona, Steward Observ, 933 N Cherry Ave, Tucson, AZ 85721 USA
11.Univ Arizona, Dept Astron, 933 N Cherry Ave, Tucson, AZ 85721 USA
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17.Inst Radioastron Millimetr, 300 Rue Piscine, F-38406 St Martin Dheres, France
18.Radboud Univ Nijmegen, Dept Astrophys, Inst Math Astrophys & Particle Phys, POB 9010, NL-6500 GL Nijmegen, Netherlands
19.Perimeter Inst Theoret Phys, 31 Caroline St N, Waterloo, ON N2L 2Y5, Canada
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29.Cornell Univ, Cornell Ctr Astrophys & Planetary Sci, Ithaca, NY 14853 USA
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37.Goethe Univ Frankfurt, Inst Theoret Phys, Max von Laue Str 1, D-60438 Frankfurt, Germany
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51.Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China
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56.Univ Tokyo, Kavli Inst Phys & Math Universe, 5-1-5 Kashiwanoha, Kashiwa, Chiba 2778583, Japan
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Recommended Citation
GB/T 7714
Akiyama, Kazunori,Alberdi, Antxon,Alef, Walter,et al. First M87 Event Horizon Telescope Results. IV. Imaging the Central Supermassive Black Hole[J]. ASTROPHYSICAL JOURNAL LETTERS,2019,875(1):52.
APA Akiyama, Kazunori.,Alberdi, Antxon.,Alef, Walter.,Asada, Keiichi.,Azulay, Rebecca.,...&Yamaguchi, Paul.(2019).First M87 Event Horizon Telescope Results. IV. Imaging the Central Supermassive Black Hole.ASTROPHYSICAL JOURNAL LETTERS,875(1),52.
MLA Akiyama, Kazunori,et al."First M87 Event Horizon Telescope Results. IV. Imaging the Central Supermassive Black Hole".ASTROPHYSICAL JOURNAL LETTERS 875.1(2019):52.
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