First Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way - INSU - Institut national des sciences de l'Univers Access content directly
Journal Articles The Astrophysical Journal Letters Year : 2022

First Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way

Kazunori Akiyama , Antxon Alberdi , Walter Alef , Juan Carlos Algaba , Richard Anantua , Keiichi Asada , Rebecca Azulay , Uwe Bach , Anne-Kathrin Baczko , David Ball , Mislav Baloković , John Barrett , Michi Bauböck , Bradford A. Benson , Dan Bintley , Lindy Blackburn , Raymond Blundell , Katherine L. Bouman , Geoffrey C. Bower , Hope Boyce , Michael Bremer , Christiaan D. Brinkerink , Roger Brissenden , Silke Britzen , Avery E. Broderick , Dominique Broguiere , Thomas Bronzwaer , Sandra Bustamante , Do-Young Byun , John E. Carlstrom , Chiara Ceccobello , Andrew Chael , Chi-Kwan Chan , Koushik Chatterjee , Shami Chatterjee , Ming-Tang Chen , Yongjun Chen , Xiaopeng Cheng , Ilje Cho , Pierre Christian , Nicholas S. Conroy , John E. Conway , James M. Cordes , Thomas M. Crawford , Geoffrey B. Crew , Alejandro Cruz-Osorio , Yuzhu Cui , Jordy Davelaar , Mariafelicia de Laurentis , Roger Deane , Jessica Dempsey , Gregory Desvignes (1) , Jason Dexter , Vedant Dhruv , Sheperd S. Doeleman , Sean Dougal , Sergio A. Dzib , Ralph P. Eatough , Razieh Emami , Heino Falcke , Joseph Farah , Vincent L. Fish , Ed Fomalont , H. Alyson Ford , Raquel Fraga-Encinas , William T. Freeman , Per Friberg , Christian M. Fromm , Antonio Fuentes , Peter Galison , Charles F. Gammie , Roberto García , Olivier Gentaz , Boris Georgiev , Ciriaco Goddi , Roman Gold , Arturo I. Gómez-Ruiz , José L. Gómez , Minfeng Gu , Mark Gurwell , Kazuhiro Hada , Daryl Haggard , Kari Haworth , Michael H. Hecht , Ronald Hesper , Dirk Heumann , Luis C. Ho , Paul Ho , Mareki Honma , Chih-Wei L. Huang , Lei Huang , David H. Hughes , Shiro Ikeda , C. M. Violette Impellizzeri , Makoto Inoue , Sara Issaoun , David J. James , Buell T. Jannuzi , Michael Janssen , Britton Jeter , Wu Jiang , Alejandra Jiménez-Rosales , Michael D. Johnson , Svetlana Jorstad , Abhishek V. Joshi , Taehyun Jung , Mansour Karami , Ramesh Karuppusamy , Tomohisa Kawashima , Garrett K. Keating , Mark Kettenis , Dong-Jin Kim , Jae-Young Kim , Jongsoo Kim , Junhan Kim , Motoki Kino , Jun Yi Koay , Prashant Kocherlakota , Yutaro Kofuji , Patrick M. Koch , Shoko Koyama , Carsten Kramer , Michael Kramer , Thomas P. Krichbaum , Cheng-Yu Kuo , Noemi La Bella , Tod R. Lauer , Daeyoung Lee , Sang-Sung Lee , Po Kin Leung , Aviad Levis , Zhiyuan Li , Rocco Lico , Greg Lindahl , Michael Lindqvist , Mikhail Lisakov , Jun Liu , Kuo Liu , Elisabetta Liuzzo , Wen-Ping Lo , Andrei P. Lobanov , Laurent Loinard , Colin J. Lonsdale , Ru-Sen Lu , Jirong Mao , Nicola Marchili , Sera Markoff , Daniel P. Marrone , Alan P. Marscher , Iván Martí-Vidal , Satoki Matsushita , Lynn D. Matthews , Lia Medeiros , Karl M. Menten , Daniel Michalik , Izumi Mizuno , Yosuke Mizuno , James M. Moran , Kotaro Moriyama , Monika Moscibrodzka , Cornelia Müller , Alejandro Mus , Gibwa Musoke , Ioannis Myserlis , Andrew Nadolski , Hiroshi Nagai , Neil M. Nagar , Masanori Nakamura , Ramesh Narayan , Gopal Narayanan , Iniyan Natarajan , Antonios Nathanail , Santiago Navarro Fuentes , Joey Neilsen , Roberto Neri , Chunchong Ni , Aristeidis Noutsos , Michael A. Nowak , Junghwan Oh , Hiroki Okino , Héctor Olivares , Gisela N. Ortiz-León , Tomoaki Oyama , Feryal Özel , Daniel C. M. Palumbo , Georgios Filippos Paraschos , Jongho Park , Harriet Parsons , Nimesh Patel , Ue-Li Pen , Dominic W. Pesce , Vincent Piétu , Richard Plambeck , Aleksandar Popstefanija , Oliver Porth , Felix M. Pötzl , Ben Prather , Jorge A. Preciado-López , Dimitrios Psaltis , Hung-Yi Pu , Venkatessh Ramakrishnan , Ramprasad Rao , Mark G. Rawlings , Alexander W. Raymond , Luciano Rezzolla , Angelo Ricarte , Bart Ripperda , Freek Roelofs , Alan Rogers , Eduardo Ros , Cristina Romero-Cañizales , Arash Roshanineshat , Helge Rottmann , Alan L. Roy , Ignacio Ruiz , Chet Ruszczyk , Kazi L. J. Rygl , Salvador Sánchez , David Sánchez-Argüelles , Miguel Sánchez-Portal , Mahito Sasada , Kaushik Satapathy , Tuomas Savolainen , F. Peter Schloerb , Jonathan Schonfeld , Karl-Friedrich Schuster , Lijing Shao , Zhiqiang Shen , Des Small , Bong Won Sohn , Jason Soohoo , Kamal Souccar , He Sun , Fumie Tazaki , Alexandra J. Tetarenko , Paul Tiede , Remo P. J. Tilanus , Michael Titus , Pablo Torne , Efthalia Traianou , Tyler Trent , Sascha Trippe , Matthew Turk , Ilse van Bemmel , Huib Jan van Langevelde , Daniel R. van Rossum , Jesse Vos , Jan Wagner , Derek Ward-Thompson , John Wardle , Jonathan Weintroub , Norbert Wex , Robert Wharton , Maciek Wielgus , Kaj Wiik , Gunther Witzel , Michael F. Wondrak , George N. Wong , Qingwen Wu , Paul Yamaguchi , Doosoo Yoon , André Young , Ken Young , Ziri Younsi , Feng Yuan , Ye-Fei Yuan , J. Anton Zensus , Shuo Zhang , Guang-Yao Zhao , Shan-Shan Zhao , Claudio Agurto , Alexander Allardi , Rodrigo Amestica , Juan Pablo Araneda , Oriel Arriagada , Jennie L. Berghuis , Alessandra Bertarini , Ryan Berthold , Jay Blanchard , Ken Brown , Mauricio Cárdenas , Michael Cantzler , Patricio Caro , Edgar Castillo-Domínguez , Tin Lok Chan , Chih-Cheng Chang , Dominic O. Chang , Shu-Hao Chang , Song-Chu Chang , Chung-Chen Chen , Ryan Chilson , Tim C. Chuter , Miroslaw Ciechanowicz , Edgar Colin-Beltran , Iain M. Coulson , Joseph Crowley , Nathalie Degenaar , Sven Dornbusch , Carlos A. Durán , Wendeline B. Everett , Aaron Faber , Karl Forster , Miriam M. Fuchs , David M. Gale , Gertie Geertsema , Edouard González , Dave Graham , Frédéric Gueth , Nils W. Halverson , Chih-Chiang Han , Kuo-Chang Han , Yutaka Hasegawa , José Luis Hernández-Rebollar , Cristian Herrera , Ruben Herrero-Illana , Stefan Heyminck , Akihiko Hirota , James Hoge , Shelbi R. Hostler Schimpf , Ryan E. Howie , Yau-De Huang , Homin Jiang , Hao Jinchi , David John , Kimihiro Kimura , Thomas Klein , Derek Kubo , John Kuroda , Caleb Kwon , Richard Lacasse , Robert Laing , Erik M. Leitch , Chao-Te Li , Ching-Tang Liu , Kuan-Yu Liu , Lupin C. -C. Lin , Li-Ming Lu , Felipe Mac-Auliffe , Pierre Martin-Cocher , Callie Matulonis , John K. Maute , Hugo Messias , Zheng Meyer-Zhao , Alfredo Montaña , Francisco Montenegro-Montes , William Montgomerie , Marcos Emir Moreno Nolasco , Dirk Muders , Hiroaki Nishioka , Timothy J. Norton , George Nystrom , Hideo Ogawa , Rodrigo Olivares , Peter Oshiro , Juan Pablo Pérez-Beaupuits , Rodrigo Parra , Neil M. Phillips , Michael Poirier , Nicolas Pradel , Richard Qiu , Philippe A. Raffin , Alexandra S. Rahlin , Jorge Ramírez , Sean Ressler , Mark Reynolds , Iván Rodríguez-Montoya , Alejandro F. Saez-Madain , Jorge Santana , Paul Shaw , Leslie E. Shirkey , Kevin M. Silva , William Snow , Don Sousa , T. K. Sridharan , William Stahm , Anthony A. Stark , John Test , Karl Torstensson , Paulina Venegas , Craig Walther , Ta-Shun Wei , Chris White , Gundolf Wieching , Rudy Wijnands , Jan G. A. Wouterloot , Chen-Yu Yu , Wei Yu , Milagros Zeballos
Kazunori Akiyama
  • Function : Author
Antxon Alberdi
  • Function : Author
Walter Alef
  • Function : Author
Juan Carlos Algaba
  • Function : Author
Richard Anantua
  • Function : Author
Keiichi Asada
  • Function : Author
Rebecca Azulay
  • Function : Author
Uwe Bach
  • Function : Author
Anne-Kathrin Baczko
  • Function : Author
David Ball
  • Function : Author
Mislav Baloković
  • Function : Author
John Barrett
  • Function : Author
Michi Bauböck
  • Function : Author
Bradford A. Benson
  • Function : Author
Dan Bintley
  • Function : Author
Lindy Blackburn
  • Function : Author
Raymond Blundell
  • Function : Author
Katherine L. Bouman
  • Function : Author
Geoffrey C. Bower
  • Function : Author
Hope Boyce
  • Function : Author
Michael Bremer
  • Function : Author
Christiaan D. Brinkerink
  • Function : Author
Roger Brissenden
  • Function : Author
Silke Britzen
  • Function : Author
Avery E. Broderick
  • Function : Author
Dominique Broguiere
  • Function : Author
Thomas Bronzwaer
  • Function : Author
Sandra Bustamante
  • Function : Author
Do-Young Byun
  • Function : Author
John E. Carlstrom
  • Function : Author
Chiara Ceccobello
  • Function : Author
Andrew Chael
  • Function : Author
Chi-Kwan Chan
  • Function : Author
Koushik Chatterjee
  • Function : Author
Shami Chatterjee
  • Function : Author
Ming-Tang Chen
  • Function : Author
Yongjun Chen
  • Function : Author
Xiaopeng Cheng
  • Function : Author
Ilje Cho
  • Function : Author
Pierre Christian
  • Function : Author
Nicholas S. Conroy
  • Function : Author
John E. Conway
  • Function : Author
James M. Cordes
  • Function : Author
Thomas M. Crawford
  • Function : Author
Geoffrey B. Crew
  • Function : Author
Alejandro Cruz-Osorio
  • Function : Author
Yuzhu Cui
  • Function : Author
Jordy Davelaar
  • Function : Author
Mariafelicia de Laurentis
  • Function : Author
Roger Deane
  • Function : Author
Jessica Dempsey
  • Function : Author
Jason Dexter
  • Function : Author
Vedant Dhruv
  • Function : Author
Sheperd S. Doeleman
  • Function : Author
Sean Dougal
  • Function : Author
Sergio A. Dzib
  • Function : Author
Ralph P. Eatough
  • Function : Author
Razieh Emami
  • Function : Author
Heino Falcke
  • Function : Author
Joseph Farah
  • Function : Author
Vincent L. Fish
  • Function : Author
Ed Fomalont
  • Function : Author
H. Alyson Ford
  • Function : Author
Raquel Fraga-Encinas
  • Function : Author
William T. Freeman
  • Function : Author
Per Friberg
  • Function : Author
Christian M. Fromm
  • Function : Author
Antonio Fuentes
  • Function : Author
Peter Galison
  • Function : Author
Charles F. Gammie
  • Function : Author
Roberto García
  • Function : Author
Olivier Gentaz
  • Function : Author
Boris Georgiev
  • Function : Author
Ciriaco Goddi
  • Function : Author
Roman Gold
  • Function : Author
Arturo I. Gómez-Ruiz
  • Function : Author
José L. Gómez
  • Function : Author
Minfeng Gu
  • Function : Author
Mark Gurwell
  • Function : Author
Kazuhiro Hada
  • Function : Author
Daryl Haggard
  • Function : Author
Kari Haworth
  • Function : Author
Michael H. Hecht
  • Function : Author
Ronald Hesper
  • Function : Author
Dirk Heumann
  • Function : Author
Luis C. Ho
  • Function : Author
Paul Ho
  • Function : Author
Mareki Honma
  • Function : Author
Chih-Wei L. Huang
  • Function : Author
Lei Huang
  • Function : Author
David H. Hughes
  • Function : Author
Shiro Ikeda
  • Function : Author
C. M. Violette Impellizzeri
  • Function : Author
Makoto Inoue
  • Function : Author
Sara Issaoun
  • Function : Author
David J. James
  • Function : Author
Buell T. Jannuzi
  • Function : Author
Michael Janssen
  • Function : Author
Britton Jeter
  • Function : Author
Wu Jiang
  • Function : Author
Alejandra Jiménez-Rosales
  • Function : Author
Michael D. Johnson
  • Function : Author
Svetlana Jorstad
  • Function : Author
Abhishek V. Joshi
  • Function : Author
Taehyun Jung
  • Function : Author
Mansour Karami
  • Function : Author
Ramesh Karuppusamy
  • Function : Author
Tomohisa Kawashima
  • Function : Author
Garrett K. Keating
  • Function : Author
Mark Kettenis
  • Function : Author
Dong-Jin Kim
  • Function : Author
Jae-Young Kim
  • Function : Author
Jongsoo Kim
  • Function : Author
Junhan Kim
  • Function : Author
Motoki Kino
  • Function : Author
Jun Yi Koay
  • Function : Author
Prashant Kocherlakota
  • Function : Author
Yutaro Kofuji
  • Function : Author
Patrick M. Koch
  • Function : Author
Shoko Koyama
  • Function : Author
Carsten Kramer
  • Function : Author
Michael Kramer
  • Function : Author
Thomas P. Krichbaum
  • Function : Author
Cheng-Yu Kuo
  • Function : Author
Noemi La Bella
  • Function : Author
Tod R. Lauer
  • Function : Author
Daeyoung Lee
  • Function : Author
Sang-Sung Lee
  • Function : Author
Po Kin Leung
  • Function : Author
Aviad Levis
  • Function : Author
Zhiyuan Li
  • Function : Author
Rocco Lico
  • Function : Author
Greg Lindahl
  • Function : Author
Michael Lindqvist
  • Function : Author
Mikhail Lisakov
  • Function : Author
Jun Liu
  • Function : Author
Kuo Liu
  • Function : Author
Elisabetta Liuzzo
  • Function : Author
Wen-Ping Lo
  • Function : Author
Andrei P. Lobanov
  • Function : Author
Laurent Loinard
  • Function : Author
Colin J. Lonsdale
  • Function : Author
Ru-Sen Lu
  • Function : Author
Jirong Mao
  • Function : Author
Nicola Marchili
  • Function : Author
Sera Markoff
  • Function : Author
Daniel P. Marrone
  • Function : Author
Alan P. Marscher
  • Function : Author
Iván Martí-Vidal
  • Function : Author
Satoki Matsushita
  • Function : Author
Lynn D. Matthews
  • Function : Author
Lia Medeiros
  • Function : Author
Karl M. Menten
  • Function : Author
Daniel Michalik
  • Function : Author
Izumi Mizuno
  • Function : Author
Yosuke Mizuno
  • Function : Author
James M. Moran
  • Function : Author
Kotaro Moriyama
  • Function : Author
Monika Moscibrodzka
  • Function : Author
Cornelia Müller
  • Function : Author
Alejandro Mus
  • Function : Author
Gibwa Musoke
  • Function : Author
Ioannis Myserlis
  • Function : Author
Andrew Nadolski
  • Function : Author
Hiroshi Nagai
  • Function : Author
Neil M. Nagar
  • Function : Author
Masanori Nakamura
  • Function : Author
Ramesh Narayan
  • Function : Author
Gopal Narayanan
  • Function : Author
Iniyan Natarajan
  • Function : Author
Antonios Nathanail
  • Function : Author
Santiago Navarro Fuentes
  • Function : Author
Joey Neilsen
  • Function : Author
Roberto Neri
  • Function : Author
Chunchong Ni
  • Function : Author
Aristeidis Noutsos
  • Function : Author
Michael A. Nowak
  • Function : Author
Junghwan Oh
  • Function : Author
Hiroki Okino
  • Function : Author
Héctor Olivares
  • Function : Author
Gisela N. Ortiz-León
  • Function : Author
Tomoaki Oyama
  • Function : Author
Feryal Özel
  • Function : Author
Daniel C. M. Palumbo
  • Function : Author
Georgios Filippos Paraschos
  • Function : Author
Jongho Park
  • Function : Author
Harriet Parsons
  • Function : Author
Nimesh Patel
  • Function : Author
Ue-Li Pen
  • Function : Author
Dominic W. Pesce
  • Function : Author
Vincent Piétu
  • Function : Author
Richard Plambeck
  • Function : Author
Aleksandar Popstefanija
  • Function : Author
Oliver Porth
  • Function : Author
Felix M. Pötzl
  • Function : Author
Ben Prather
  • Function : Author
Jorge A. Preciado-López
  • Function : Author
Dimitrios Psaltis
  • Function : Author
Hung-Yi Pu
  • Function : Author
Venkatessh Ramakrishnan
  • Function : Author
Ramprasad Rao
  • Function : Author
Mark G. Rawlings
  • Function : Author
Alexander W. Raymond
  • Function : Author
Luciano Rezzolla
  • Function : Author
Angelo Ricarte
  • Function : Author
Bart Ripperda
  • Function : Author
Freek Roelofs
  • Function : Author
Alan Rogers
  • Function : Author
Eduardo Ros
  • Function : Author
Cristina Romero-Cañizales
  • Function : Author
Arash Roshanineshat
  • Function : Author
Helge Rottmann
  • Function : Author
Alan L. Roy
  • Function : Author
Ignacio Ruiz
  • Function : Author
Chet Ruszczyk
  • Function : Author
Kazi L. J. Rygl
  • Function : Author
Salvador Sánchez
  • Function : Author
David Sánchez-Argüelles
  • Function : Author
Miguel Sánchez-Portal
  • Function : Author
Mahito Sasada
  • Function : Author
Kaushik Satapathy
  • Function : Author
Tuomas Savolainen
  • Function : Author
F. Peter Schloerb
  • Function : Author
Jonathan Schonfeld
  • Function : Author
Karl-Friedrich Schuster
  • Function : Author
Lijing Shao
  • Function : Author
Zhiqiang Shen
  • Function : Author
Des Small
  • Function : Author
Bong Won Sohn
  • Function : Author
Jason Soohoo
  • Function : Author
Kamal Souccar
  • Function : Author
He Sun
  • Function : Author
Fumie Tazaki
  • Function : Author
Alexandra J. Tetarenko
  • Function : Author
Paul Tiede
  • Function : Author
Remo P. J. Tilanus
  • Function : Author
Michael Titus
  • Function : Author
Pablo Torne
  • Function : Author
Efthalia Traianou
  • Function : Author
Tyler Trent
  • Function : Author
Sascha Trippe
  • Function : Author
Matthew Turk
  • Function : Author
Ilse van Bemmel
  • Function : Author
Huib Jan van Langevelde
  • Function : Author
Daniel R. van Rossum
  • Function : Author
Jesse Vos
  • Function : Author
Jan Wagner
  • Function : Author
Derek Ward-Thompson
  • Function : Author
John Wardle
  • Function : Author
Jonathan Weintroub
  • Function : Author
Norbert Wex
  • Function : Author
Robert Wharton
  • Function : Author
Maciek Wielgus
  • Function : Author
Kaj Wiik
  • Function : Author
Gunther Witzel
  • Function : Author
Michael F. Wondrak
  • Function : Author
George N. Wong
  • Function : Author
Qingwen Wu
  • Function : Author
Paul Yamaguchi
  • Function : Author
Doosoo Yoon
  • Function : Author
André Young
  • Function : Author
Ken Young
  • Function : Author
Ziri Younsi
  • Function : Author
Feng Yuan
  • Function : Author
Ye-Fei Yuan
  • Function : Author
J. Anton Zensus
  • Function : Author
Shuo Zhang
  • Function : Author
Guang-Yao Zhao
  • Function : Author
Shan-Shan Zhao
  • Function : Author
Claudio Agurto
  • Function : Author
Alexander Allardi
  • Function : Author
Rodrigo Amestica
  • Function : Author
Juan Pablo Araneda
  • Function : Author
Oriel Arriagada
  • Function : Author
Jennie L. Berghuis
  • Function : Author
Alessandra Bertarini
  • Function : Author
Ryan Berthold
  • Function : Author
Jay Blanchard
  • Function : Author
Ken Brown
  • Function : Author
Mauricio Cárdenas
  • Function : Author
Michael Cantzler
  • Function : Author
Patricio Caro
  • Function : Author
Edgar Castillo-Domínguez
  • Function : Author
Tin Lok Chan
  • Function : Author
Chih-Cheng Chang
  • Function : Author
Dominic O. Chang
  • Function : Author
Shu-Hao Chang
  • Function : Author
Song-Chu Chang
  • Function : Author
Chung-Chen Chen
  • Function : Author
Ryan Chilson
  • Function : Author
Tim C. Chuter
  • Function : Author
Miroslaw Ciechanowicz
  • Function : Author
Edgar Colin-Beltran
  • Function : Author
Iain M. Coulson
  • Function : Author
Joseph Crowley
  • Function : Author
Nathalie Degenaar
  • Function : Author
Sven Dornbusch
  • Function : Author
Carlos A. Durán
  • Function : Author
Wendeline B. Everett
  • Function : Author
Aaron Faber
  • Function : Author
Karl Forster
  • Function : Author
Miriam M. Fuchs
  • Function : Author
David M. Gale
  • Function : Author
Gertie Geertsema
  • Function : Author
Edouard González
  • Function : Author
Dave Graham
  • Function : Author
Frédéric Gueth
  • Function : Author
Nils W. Halverson
  • Function : Author
Chih-Chiang Han
  • Function : Author
Kuo-Chang Han
  • Function : Author
Yutaka Hasegawa
  • Function : Author
José Luis Hernández-Rebollar
  • Function : Author
Cristian Herrera
  • Function : Author
Ruben Herrero-Illana
  • Function : Author
Stefan Heyminck
  • Function : Author
Akihiko Hirota
  • Function : Author
James Hoge
  • Function : Author
Shelbi R. Hostler Schimpf
  • Function : Author
Ryan E. Howie
  • Function : Author
Yau-De Huang
  • Function : Author
Homin Jiang
  • Function : Author
Hao Jinchi
  • Function : Author
David John
  • Function : Author
Kimihiro Kimura
  • Function : Author
Thomas Klein
  • Function : Author
Derek Kubo
  • Function : Author
John Kuroda
  • Function : Author
Caleb Kwon
  • Function : Author
Richard Lacasse
  • Function : Author
Robert Laing
  • Function : Author
Erik M. Leitch
  • Function : Author
Chao-Te Li
  • Function : Author
Ching-Tang Liu
  • Function : Author
Kuan-Yu Liu
  • Function : Author
Lupin C. -C. Lin
  • Function : Author
Li-Ming Lu
  • Function : Author
Felipe Mac-Auliffe
  • Function : Author
Pierre Martin-Cocher
  • Function : Author
Callie Matulonis
  • Function : Author
John K. Maute
  • Function : Author
Hugo Messias
  • Function : Author
Zheng Meyer-Zhao
  • Function : Author
Alfredo Montaña
  • Function : Author
Francisco Montenegro-Montes
  • Function : Author
William Montgomerie
  • Function : Author
Marcos Emir Moreno Nolasco
  • Function : Author
Dirk Muders
  • Function : Author
Hiroaki Nishioka
  • Function : Author
Timothy J. Norton
  • Function : Author
George Nystrom
  • Function : Author
Hideo Ogawa
  • Function : Author
Rodrigo Olivares
  • Function : Author
Peter Oshiro
  • Function : Author
Juan Pablo Pérez-Beaupuits
  • Function : Author
Rodrigo Parra
  • Function : Author
Neil M. Phillips
  • Function : Author
Michael Poirier
  • Function : Author
Nicolas Pradel
  • Function : Author
Richard Qiu
  • Function : Author
Philippe A. Raffin
  • Function : Author
Alexandra S. Rahlin
  • Function : Author
Jorge Ramírez
  • Function : Author
Sean Ressler
  • Function : Author
Mark Reynolds
  • Function : Author
Iván Rodríguez-Montoya
  • Function : Author
Alejandro F. Saez-Madain
  • Function : Author
Jorge Santana
  • Function : Author
Paul Shaw
  • Function : Author
Leslie E. Shirkey
  • Function : Author
Kevin M. Silva
  • Function : Author
William Snow
  • Function : Author
Don Sousa
  • Function : Author
T. K. Sridharan
  • Function : Author
William Stahm
  • Function : Author
Anthony A. Stark
  • Function : Author
John Test
  • Function : Author
Karl Torstensson
  • Function : Author
Paulina Venegas
  • Function : Author
Craig Walther
  • Function : Author
Ta-Shun Wei
  • Function : Author
Chris White
  • Function : Author
Gundolf Wieching
  • Function : Author
Rudy Wijnands
  • Function : Author
Jan G. A. Wouterloot
  • Function : Author
Chen-Yu Yu
  • Function : Author
Wei Yu
  • Function : Author
Milagros Zeballos
  • Function : Author

Abstract

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 λ = 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 μas (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 ~4 × 106 M , 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°), 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 103-105 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.
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insu-03713319 , version 1 (04-07-2022)

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Kazunori Akiyama, Antxon Alberdi, Walter Alef, Juan Carlos Algaba, Richard Anantua, et al.. First Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way. The Astrophysical Journal Letters, 2022, 930, ⟨10.3847/2041-8213/ac6674⟩. ⟨insu-03713319⟩
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