Event Horizon Telescope observations of the jet launching and collimation in Centaurus A
Journal
Date Issued
2021
Author(s)
Janssen, Michael
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Falcke, Heino
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Kadler, Matthias
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Ros, Eduardo
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Wielgus, Maciek
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Akiyama, Kazunori
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Baloković, Mislav
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Blackburn, Lindy
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Bouman, Katherine L.
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Chael, Andrew
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Chan, Chi-kwan
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Chatterjee, Koushik
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Davelaar, Jordy
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Edwards, Philip G.
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Fromm, Christian M.
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Gómez, José L.
•
•
Issaoun, Sara
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Johnson, Michael D.
•
Kim, Junhan
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Koay, Jun Yi
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Krichbaum, Thomas P.
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Liu, Jun
•
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Markoff, Sera
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Markowitz, Alex
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Marrone, Daniel P.
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Mizuno, Yosuke
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Müller, Cornelia
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Ni, Chunchong
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Pesce, Dominic W.
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Ramakrishnan, Venkatessh
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Roelofs, Freek
•
•
van Bemmel, Ilse
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Event Horizon Telescope Collaboration
•
Alberdi, Antxon
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Alef, Walter
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Algaba, Juan Carlos
•
Anantua, Richard
•
Asada, Keiichi
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Azulay, Rebecca
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Baczko, Anne-Kathrin
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Ball, David
•
Ball, David
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Barrett, John
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Benson, Bradford A.
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Bintley, Dan
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Bintley, Dan
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Blundell, Raymond
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Boland, Wilfred
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Boland, Wilfred
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Bower, Geoffrey C.
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Boyce, Hope
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Bremer, Michael
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Brinkerink, Christiaan D.
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Brissenden, Roger
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Britzen, Silke
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Broderick, Avery E.
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Broguiere, Dominique
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Bronzwaer, Thomas
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Byun, Do-Young
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Carlstrom, John E.
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Chatterjee, Shami
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Chen, Ming-Tang
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Chen, Yongjun
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Chesler, Paul M.
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Cho, Ilje
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Christian, Pierre
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Conway, John E.
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Cordes, James M.
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Crawford, Thomas M.
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Crew, Geoffrey B.
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Cruz-Osorio, Alejandro
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Cui, Yuzhu
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Cui, Yuzhu
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De Laurentis, Mariafelicia
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Deane, Roger
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Dempsey, Jessica
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Desvignes, Gregory
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Dexter, Jason
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Doeleman, Sheperd S.
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Eatough, Ralph P.
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Farah, Joseph
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Farah, Joseph
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Fish, Vincent L.
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Fomalont, Ed
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Ford, H. Alyson
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Fraga-Encinas, Raquel
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Friberg, Per
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Friberg, Per
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Fuentes, Antonio
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Galison, Peter
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Gammie, Charles F.
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García, Roberto
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Gelles, Zachary
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Gentaz, Olivier
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Georgiev, Boris
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Georgiev, Boris
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Gold, Roman
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Gold, Roman
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Gómez-Ruiz, Arturo I.
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Gu, Minfeng
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Gurwell, Mark
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Hada, Kazuhiro
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Haggard, Daryl
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Hecht, Michael H.
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Hesper, Ronald
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Himwich, Elizabeth
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Ho, Luis C.
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Ho, Paul
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Honma, Mareki
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Huang, Chih-Wei L.
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Huang, Lei
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Hughes, David H.
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Ikeda, Shiro
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Inoue, Makoto
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Inoue, Makoto
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James, David J.
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Jannuzi, Buell T.
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Jannuzi, Buell T.
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Jeter, Britton
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Jiang, Wu
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Jimenez-Rosales, Alejandra
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Jimenez-Rosales, Alejandra
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Jorstad, Svetlana
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Jung, Taehyun
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Karami, Mansour
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Karuppusamy, Ramesh
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Kawashima, Tomohisa
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Keating, Garrett K.
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Kettenis, Mark
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Kim, Dong-Jin
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Kim, Jae-Young
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Kim, Jae-Young
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Kim, Jongsoo
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Kino, Motoki
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Kino, Motoki
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Kofuji, Yutaro
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Koyama, Shoko
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Kramer, Michael
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Kramer, Carsten
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Kramer, Carsten
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Kuo, Cheng-Yu
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Lauer, Tod R.
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Lee, Sang-Sung
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Levis, Aviad
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Li, Yan-Rong
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Li, Zhiyuan
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Lindqvist, Michael
•
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Lindahl, Greg
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Lindahl, Greg
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Liu, Kuo
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Liu, Kuo
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Lo, Wen-Ping
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Lobanov, Andrei P.
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Loinard, Laurent
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Lonsdale, Colin
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Lu, Ru-Sen
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MacDonald, Nicholas R.
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Mao, Jirong
•
•
•
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Marscher, Alan P.
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Martí-Vidal, Iván
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Matsushita, Satoki
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Matthews, Lynn D.
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Medeiros, Lia
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Menten, Karl M.
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Mizuno, Izumi
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Mizuno, Izumi
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Moran, James M.
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Moriyama, Kotaro
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Moscibrodzka, Monika
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Moscibrodzka, Monika
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Musoke, Gibwa
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Mejías, Alejandro Mus
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Nagai, Hiroshi
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Nagar, Neil M.
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Nakamura, Masanori
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Narayan, Ramesh
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Narayanan, Gopal
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Natarajan, Iniyan
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Nathanail, Antonios
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Neilsen, Joey
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Neri, Roberto
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Neri, Roberto
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Noutsos, Aristeidis
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Nowak, Michael A.
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Okino, Hiroki
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Olivares, Héctor
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Ortiz-León, Gisela N.
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Oyama, Tomoaki
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Özel, Feryal
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Palumbo, Daniel C. M.
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Park, Jongho
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Patel, Nimesh
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Pen, Ue-Li
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Pen, Ue-Li
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Piétu, Vincent
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Plambeck, Richard
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PopStefanija, Aleksandar
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Porth, Oliver
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Pötzl, Felix M.
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Prather, Ben
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Preciado-López, Jorge A.
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Psaltis, Dimitrios
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Pu, Hung-Yi
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Pu, Hung-Yi
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Rao, Ramprasad
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Rawlings, Mark G.
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Raymond, Alexander W.
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Rezzolla, Luciano
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Ricarte, Angelo
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Ripperda, Bart
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Ripperda, Bart
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Rogers, Alan
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Rogers, Alan
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Rose, Mel
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Roshanineshat, Arash
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Rottmann, Helge
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Roy, Alan L.
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Ruszczyk, Chet
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Ruszczyk, Chet
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Sánchez, Salvador
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Sánchez-Arguelles, David
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Sasada, Mahito
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Savolainen, Tuomas
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Schloerb, F. Peter
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Schuster, Karl-Friedrich
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Shao, Lijing
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Shen, Zhiqiang
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Small, Des
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Sohn, Bong Won
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SooHoo, Jason
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Sun, He
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Tazaki, Fumie
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Tetarenko, Alexandra J.
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Tiede, Paul
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Tilanus, Remo P. J.
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Titus, Michael
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Torne, Pablo
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Trent, Tyler
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Traianou, Efthalia
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Trippe, Sascha
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van Bemmel, Ilse
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van Langevelde, Huib Jan
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van Rossum, Daniel R.
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Wagner, Jan
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Ward-Thompson, Derek
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Wardle, John
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Weintroub, Jonathan
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Wex, Norbert
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Wharton, Robert
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Wharton, Robert
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Wong, George N.
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Wu, Qingwen
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Yoon, Doosoo
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Young, André
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Young, Ken
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Younsi, Ziri
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Yuan, Feng
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Yuan, Ye-Fei
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Zensus, J. Anton
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Zhao, Guang-Yao
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Zhao, Shan-Shan
Abstract
Very-long-baseline interferometry (VLBI) observations of active galactic nuclei at millimetre wavelengths have the power to reveal the launching and initial collimation region of extragalactic radio jets, down to 10-100 gravitational radii (rg ≡ GM/c2) scales in nearby sources1. Centaurus A is the closest radio-loud source to Earth2. It bridges the gap in mass and accretion rate between the supermassive black holes (SMBHs) in Messier 87 and our Galactic Centre. A large southern declination of −43° has, however, prevented VLBI imaging of Centaurus A below a wavelength of 1 cm thus far. Here we show the millimetre VLBI image of the source, which we obtained with the Event Horizon Telescope at 228 GHz. Compared with previous observations3, we image the jet of Centaurus A at a tenfold higher frequency and sixteen times sharper resolution and thereby probe sub-lightday structures. We reveal a highly collimated, asymmetrically edge-brightened jet as well as the fainter counterjet. We find that the source structure of Centaurus A resembles the jet in Messier 87 on ~500 rg scales remarkably well. Furthermore, we identify the location of Centaurus A's SMBH with respect to its resolved jet core at a wavelength of 1.3 mm and conclude that the source's event horizon shadow4 should be visible at terahertz frequencies. This location further supports the universal scale invariance of black holes over a wide range of masses5,6.
Volume
5
Issue
10
Start page
1017
Issn Identifier
2397-3366
Ads BibCode
2021NatAs...5.1017J
Rights
open.access
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