The Event Horizon Telescope Image of the Quasar NRAO 530
Artikel i vetenskaplig tidskrift, 2023
We report on the observations of the quasar NRAO 530 with the Event Horizon Telescope (EHT) on 2017 April 5-7, when NRAO 530 was used as a calibrator for the EHT observations of Sagittarius A*. At z = 0.902, this is the most distant object imaged by the EHT so far. We reconstruct the first images of the source at 230 GHz, at an unprecedented angular resolution of similar to 20 mu as, both in total intensity and in linear polarization (LP). We do not detect source variability, allowing us to represent the whole data set with static images. The images reveal a bright feature located on the southern end of the jet, which we associate with the core. The feature is linearly polarized, with a fractional polarization of similar to 5%-8%, and it has a substructure consisting of two components. Their observed brightness temperature suggests that the energy density of the jet is dominated by the magnetic field. The jet extends over 60 mu as along a position angle similar to -28 degrees. It includes two features with orthogonal directions of polarization (electric vector position angle), parallel and perpendicular to the jet axis, consistent with a helical structure of the magnetic field in the jet. The outermost feature has a particularly high degree of LP, suggestive of a nearly uniform magnetic field. Future EHT observations will probe the variability of the jet structure on microarcsecond scales, while simultaneous multiwavelength monitoring will provide insight into the high-energy emission origin.
Författare
S.G. Jorstad
Boston University
Maciek Wielgus
Max-Planck-Gesellschaft
Rocco Lico
Consejo Superior de Investigaciones Científicas (CSIC)
Istituto nazionale di astrofisica (INAF)
Sara Issaoun
Harvard-Smithsonian Center for Astrophysics
National Aeronautics and Space Administration (NASA)
Avery E. Broderick
Perimeter Institute for Theoretical Physics
University of Waterloo
Dominic W. Pesce
Harvard-Smithsonian Center for Astrophysics
Harvard University
Jun Liu
Max-Planck-Gesellschaft
Guang-Yao Zhao
Consejo Superior de Investigaciones Científicas (CSIC)
Thomas P. Krichbaum
Max-Planck-Gesellschaft
Lindy Blackburn
Harvard University
Harvard-Smithsonian Center for Astrophysics
Chi-kwan Chan
University of Arizona
Michael Janssen
Max-Planck-Gesellschaft
Venkatessh Ramakrishnan
Aalto-Yliopisto
Universidad de Concepción
Turun Yliopisto
Kazunori Akiyama
Harvard University
National Astronomical Observatory of Japan
Massachusetts Institute of Technology (MIT)
Antxon Alberdi
Consejo Superior de Investigaciones Científicas (CSIC)
Juan Carlos Algaba
University of Malaya
Katherine L. Bouman
California Institute of Technology (Caltech)
Ilje Cho
Consejo Superior de Investigaciones Científicas (CSIC)
Antonio Fuentes
Consejo Superior de Investigaciones Científicas (CSIC)
Jose L. Gomez
Consejo Superior de Investigaciones Científicas (CSIC)
Mark Gurwell
Harvard-Smithsonian Center for Astrophysics
Michael D. Johnson
Harvard University
Harvard-Smithsonian Center for Astrophysics
Jae-Young Kim
Kyungpook National University
Max-Planck-Gesellschaft
Ru-Sen Lu
Max-Planck-Gesellschaft
Chinese Academy of Sciences
Ivan Marti-Vidal
Universitat de Valencia
Monika Moscibrodzka
Radboud Universiteit
Felix M. Poetzl
Max-Planck-Gesellschaft
Idryma Technologias kai Erevnas (FORTH)
Efthalia Traianou
Consejo Superior de Investigaciones Científicas (CSIC)
Max-Planck-Gesellschaft
Ilse van Bemmel
Joint Institute for VLBI in Europe (JIVE)
Walter Alef
Max-Planck-Gesellschaft
Richard Anantua
University of Texas
Harvard University
Harvard-Smithsonian Center for Astrophysics
Keiichi Asada
Academia Sinica
Rebecca Azulay
Universitat de Valencia
Max-Planck-Gesellschaft
Uwe Bach
Max-Planck-Gesellschaft
Anne-Kathrin Baczko
Max-Planck-Gesellschaft
David Ball
University of Arizona
Mislav Balokovic
Yale University
John Barrett
Massachusetts Institute of Technology (MIT)
Michi Baubock
University of Illinois
Bradford A. Benson
Fermi National Accelerator Laboratory
University of Chicago
Dan Bintley
East Asian Observatory
James Clerk Maxwell Telescope
Raymond Blundell
Harvard-Smithsonian Center for Astrophysics
Geoffrey C. Bower
Academia Sinica
University of Hawaii
Hope Boyce
McGill University
Michael Bremer
Institut de Radioastronomie Millimétrique (IRAM)
Christiaan D. Brinkerink
Radboud Universiteit
Roger Brissenden
Harvard-Smithsonian Center for Astrophysics
Harvard University
Silke Britzen
Max-Planck-Gesellschaft
Dominique Broguiere
Institut de Radioastronomie Millimétrique (IRAM)
Thomas Bronzwaer
Radboud Universiteit
Sandra Bustamante
University of Massachusetts
Do-Young Byun
Korea Astronomy and Space Science Institute
University of Science and Technology (UST)
John E. Carlstrom
University of Chicago
Chiara Ceccobello
Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik
Andrew Chael
Princeton University
Koushik Chatterjee
Harvard University
Harvard-Smithsonian Center for Astrophysics
Shami Chatterjee
Cornell University
Ming-Tang Chen
Academia Sinica
Yongjun Chen
Chinese Academy of Sciences
Xiaopeng Cheng
Korea Astronomy and Space Science Institute
Pierre Christian
Fairfield University
Nicholas S. Conroy
University of Illinois
Harvard-Smithsonian Center for Astrophysics
John Conway
Chalmers, Rymd-, geo- och miljövetenskap, Onsala rymdobservatorium
James M. Cordes
Cornell University
Thomas M. Crawford
University of Chicago
Geoffrey B. Crew
Massachusetts Institute of Technology (MIT)
Alejandro Cruz-Osorio
Johann Wolfgang Goethe Universität Frankfurt am Main
Yuzhu Cui
National Astronomical Observatory of Japan
Shanghai Jiao Tong University
The Graduate University for Advanced Studies (SOKENDAI)
Jordy Davelaar
Radboud Universiteit
Columbia University
Flatiron Institute
Mariafelicia De Laurentis
Johann Wolfgang Goethe Universität Frankfurt am Main
Universita degli Studi di Napoli Federico II
Istituto Nazionale di Fisica Nucleare
Roger Deane
Universiteit van Pretoria
University of Witwatersrand
Rhodes University
Jessica Dempsey
East Asian Observatory
Netherlands Institute for Radio Astronomy (ASTRON)
James Clerk Maxwell Telescope
Gregory Desvignes
Max-Planck-Gesellschaft
Université Paris Descartes
Jason Dexter
University of Colorado
Vedant Dhruv
University of Illinois
Sheperd S. Doeleman
Harvard University
Harvard-Smithsonian Center for Astrophysics
Sean Dougal
University of Arizona
Sergio A. Dzib
Institut de Radioastronomie Millimétrique (IRAM)
Max-Planck-Gesellschaft
Ralph P. Eatough
Chinese Academy of Sciences
Max-Planck-Gesellschaft
Razieh Emami
Harvard-Smithsonian Center for Astrophysics
Heino Falcke
Radboud Universiteit
Joseph Farah
Las Cumbres Observatory Global Telescope Network
University of California
Vincent L. Fish
Massachusetts Institute of Technology (MIT)
Ed Fomalont
National Radio Astronomy Observatory
H. Alyson Ford
University of Arizona
Raquel Fraga-Encinas
Radboud Universiteit
William T. Freeman
Google Inc.
Massachusetts Institute of Technology (MIT)
Per Friberg
James Clerk Maxwell Telescope
East Asian Observatory
Christian M. Fromm
Johann Wolfgang Goethe Universität Frankfurt am Main
Julius-Maximilians Universität Würzburg
Max-Planck-Gesellschaft
Peter Galison
Harvard University
Charles F. Gammie
University of Illinois
Roberto Garcia
Institut de Radioastronomie Millimétrique (IRAM)
Olivier Gentaz
Institut de Radioastronomie Millimétrique (IRAM)
Boris Georgiev
Perimeter Institute for Theoretical Physics
University of Waterloo
C. Goddi
Istituto nazionale di astrofisica (INAF)
Istituto Nazionale di Fisica Nucleare
Universidade de Sao Paulo (USP)
Universita degli Studi di Cagliari
R. Gold
Syddansk Universitet
Arturo I. Gomez-Ruiz
Consejo Nacional de Ciencia y Tecnologia Mexico
Instituto Nacional de Astrofísica, Óptica y Electrońica
Minfeng Gu
Chinese Academy of Sciences
Kazuhiro Hada
The Graduate University for Advanced Studies (SOKENDAI)
National Astronomical Observatory of Japan
Daryl Haggard
McGill University
Kari Haworth
Harvard-Smithsonian Center for Astrophysics
Michael H. Hecht
Massachusetts Institute of Technology (MIT)
Ronald Hesper
Rijksuniversiteit Groningen
Dirk Heumann
University of Arizona
Luis C. Ho
Beijing University of Technology
Paul Ho
Academia Sinica
James Clerk Maxwell Telescope
East Asian Observatory
Mareki Honma
National Astronomical Observatory of Japan
The Graduate University for Advanced Studies (SOKENDAI)
University of Tokyo
Chih-Wei L. Huang
Academia Sinica
Lei Huang
Chinese Academy of Sciences
David H. Hughes
Instituto Nacional de Astrofísica, Óptica y Electrońica
Shiro Ikeda
The Graduate University for Advanced Studies (SOKENDAI)
National Astronomical Observatory of Japan
The Institute of Statistical Mathematics
University of Tokyo
C. M. Violette Impellizzeri
National Radio Astronomy Observatory
Universiteit Leiden
Makoto Inoue
The Graduate University for Advanced Studies (SOKENDAI)
David J. James
ASTRAVEO
Buell T. Jannuzi
University of Arizona
Britton Jeter
Academia Sinica
Wu Jiang
Chinese Academy of Sciences
Alejandra Jimenez-Rosales
Radboud Universiteit
Abhishek V. Joshi
University of Illinois
Taehyun Jung
Korea Astronomy and Space Science Institute
University of Science and Technology (UST)
Mansour Karami
Perimeter Institute for Theoretical Physics
University of Waterloo
Ramesh Karuppusamy
Max-Planck-Gesellschaft
Tomohisa Kawashima
University of Tokyo
Garrett K. Keating
Harvard-Smithsonian Center for Astrophysics
Mark Kettenis
Joint Institute for VLBI in Europe (JIVE)
Dong-Jin Kim
Max-Planck-Gesellschaft
Jongsoo Kim
Korea Astronomy and Space Science Institute
Junhan Kim
California Institute of Technology (Caltech)
Motoki Kino
Kogakuin University of Technology and Engineering
National Astronomical Observatory of Japan
Jun Yi Koay
Academia Sinica
Prashant Kocherlakota
Johann Wolfgang Goethe Universität Frankfurt am Main
Yutaro Kofuji
University of Tokyo
National Astronomical Observatory of Japan
Shoko Koyama
Niigata University
Academia Sinica
Carsten Kramer
Institut de Radioastronomie Millimétrique (IRAM)
Michael Kramer
Max-Planck-Gesellschaft
Cheng-Yu Kuo
National Sun Yat-Sen University
Academia Sinica
Noemi La Bella
Radboud Universiteit
Tod R. Lauer
National Optical Astronomy Observatory
Daeyoung Lee
University of Illinois
Sang-Sung Lee
Korea Astronomy and Space Science Institute
Po Kin Leung
Chinese University of Hong Kong
Aviad Levis
California Institute of Technology (Caltech)
Zhiyuan Li
Nanjing University
Greg Lindahl
Harvard-Smithsonian Center for Astrophysics
Michael Lindqvist
Chalmers, Rymd-, geo- och miljövetenskap, Onsala rymdobservatorium
Mikhail Lisakov
Max-Planck-Gesellschaft
Kuo Liu
Max-Planck-Gesellschaft
Elisabetta Liuzzo
Istituto nazionale di astrofisica (INAF)
Italian ALMA Regional Centre
Wen-Ping Lo
Academia Sinica
National Taiwan University
Andrei P. Lobanov
Max-Planck-Gesellschaft
Laurent Loinard
Universidad Nacional Autónoma de México
Colin J. Lonsdale
Massachusetts Institute of Technology (MIT)
Nicholas R. MacDonald
Max-Planck-Gesellschaft
Jirong Mao
Chinese Academy of Sciences
Nicola Marchili
Istituto nazionale di astrofisica (INAF)
Italian ALMA Regional Centre
Max-Planck-Gesellschaft
Sera Markoff
Universiteit Van Amsterdam
Daniel P. Marrone
University of Arizona
Alan P. Marscher
Boston University
Satoki Matsushita
Academia Sinica
Lynn D. Matthews
Massachusetts Institute of Technology (MIT)
Lia Medeiros
University of Arizona
National Science Foundation
Institute for Advanced Study
Karl M. Menten
Max-Planck-Gesellschaft
Daniel Michalik
Europeiska rymdorganisationen (ESA)
University of Chicago
Izumi Mizuno
East Asian Observatory
James Clerk Maxwell Telescope
Yosuke Mizuno
Shanghai Jiao Tong University
Johann Wolfgang Goethe Universität Frankfurt am Main
James M. Moran
Harvard-Smithsonian Center for Astrophysics
Harvard University
Kotaro Moriyama
Massachusetts Institute of Technology (MIT)
National Astronomical Observatory of Japan
Johann Wolfgang Goethe Universität Frankfurt am Main
Cornelia Mueller
Max-Planck-Gesellschaft
Radboud Universiteit
Alejandro Mus
Universitat de Valencia
Gibwa Musoke
Universiteit Van Amsterdam
Radboud Universiteit
I. Myserlis
Institut de Radioastronomie Millimétrique (IRAM)
Andrew Nadolski
University of Illinois
Hiroshi Nagai
The Graduate University for Advanced Studies (SOKENDAI)
National Astronomical Observatory of Japan
Neil M. Nagar
Universidad de Concepción
Masanori Nakamura
National Institute of Technology (KOSEN)
Academia Sinica
Ramesh Narayan
Harvard-Smithsonian Center for Astrophysics
Harvard University
Gopal Narayanan
University of Massachusetts
Iniyan Natarajan
South African Radio Astronomy Observatory (SARAO)
University of Witwatersrand
Antonios Nathanail
National and Kapodistrian University of Athens
Johann Wolfgang Goethe Universität Frankfurt am Main
Santiago Navarro Fuentes
Institut de Radioastronomie Millimétrique (IRAM)
Joseph Neilsen
Villanova University
Roberto Neri
Institut de Radioastronomie Millimétrique (IRAM)
Chunchong Ni
University of Waterloo
Perimeter Institute for Theoretical Physics
Aristeidis Noutsos
Max-Planck-Gesellschaft
Michael A. Nowak
Washington University in St. Louis
Junghwan Oh
Sejong University
Hiroki Okino
National Astronomical Observatory of Japan
University of Tokyo
Hector Olivares
Radboud Universiteit
Gisela N. Ortiz-Leon
Max-Planck-Gesellschaft
Universidad Nacional Autónoma de México
Tomoaki Oyama
National Astronomical Observatory of Japan
Feryal Ozel
University of Arizona
Daniel C. M. Palumbo
Harvard-Smithsonian Center for Astrophysics
Harvard University
Georgios Filippos Paraschos
Max-Planck-Gesellschaft
Jongho Park
EACOA
Academia Sinica
Harriet Parsons
James Clerk Maxwell Telescope
East Asian Observatory
Nimesh Patel
Harvard-Smithsonian Center for Astrophysics
U. L. Pen
University of Toronto
Canadian Institute for Advanced Research
Academia Sinica
Perimeter Institute for Theoretical Physics
Vincent Pietu
Institut de Radioastronomie Millimétrique (IRAM)
Richard Plambeck
University of California
Aleksandar PopStefanija
University of Massachusetts
Oliver Porth
Universiteit Van Amsterdam
Johann Wolfgang Goethe Universität Frankfurt am Main
Ben Prather
University of Illinois
Jorge A. Preciado-Lopez
Perimeter Institute for Theoretical Physics
Dimitrios Psaltis
University of Arizona
Hung-Yi Pu
Academia Sinica
National Taiwan Normal University
Ramprasad Rao
Harvard-Smithsonian Center for Astrophysics
Mark G. Rawlings
James Clerk Maxwell Telescope
East Asian Observatory
Gemini Observatory North
Alexander W. Raymond
Harvard University
Harvard-Smithsonian Center for Astrophysics
Luciano Rezzolla
Trinity College Dublin
Johann Wolfgang Goethe Universität Frankfurt am Main
Frankfurt Institute for Advanced Studies
Angelo Ricarte
Harvard-Smithsonian Center for Astrophysics
Harvard University
Bart Ripperda
Flatiron Institute
National Aeronautics and Space Administration (NASA)
Institute for Advanced Study
Princeton University
Freek Roelofs
Harvard University
Harvard-Smithsonian Center for Astrophysics
Radboud Universiteit
Alan Rogers
Massachusetts Institute of Technology (MIT)
Eduardo Ros
Max-Planck-Gesellschaft
Cristina Romero-Canizales
Academia Sinica
Arash Roshanineshat
University of Arizona
Helge Rottmann
Max-Planck-Gesellschaft
Alan L. Roy
Max-Planck-Gesellschaft
Ignacio Ruiz
Institut de Radioastronomie Millimétrique (IRAM)
Chet Ruszczyk
Massachusetts Institute of Technology (MIT)
Kazi L. J. Rygl
Istituto nazionale di astrofisica (INAF)
Italian ALMA Regional Centre
Salvador Sanchez
Institut de Radioastronomie Millimétrique (IRAM)
David Sanchez-Arguelles
Instituto Nacional de Astrofísica, Óptica y Electrońica
Consejo Nacional de Ciencia y Tecnologia Mexico
Miguel Sanchez-Portal
Institut de Radioastronomie Millimétrique (IRAM)
Mahito Sasada
Hiroshima University
Johann Wolfgang Goethe Universität Frankfurt am Main
Tokyo Institute of Technology
Kaushik Satapathy
University of Arizona
T. Savolainen
Max-Planck-Gesellschaft
Aalto-Yliopisto
F. Peter Schloerb
University of Massachusetts
Jonathan Schonfeld
Harvard-Smithsonian Center for Astrophysics
Karl-Friedrich Schuster
Institut de Radioastronomie Millimétrique (IRAM)
Lijing Shao
Beijing University of Technology
Max-Planck-Gesellschaft
Zhiqiang Shen
Chinese Academy of Sciences
Des Small
Joint Institute for VLBI in Europe (JIVE)
Bong Won Sohn
Korea Astronomy and Space Science Institute
Yonsei University
University of Science and Technology (UST)
Jason SooHoo
Massachusetts Institute of Technology (MIT)
Kamal Souccar
University of Massachusetts
He Sun
California Institute of Technology (Caltech)
Fumie Tazaki
National Astronomical Observatory of Japan
Alexandra J. Tetarenko
National Aeronautics and Space Administration (NASA)
Texas Tech University
Paul Tiede
Harvard University
Harvard-Smithsonian Center for Astrophysics
Remo P. J. Tilanus
University of Arizona
Radboud Universiteit
ASTRAVEO
Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO)
Michael Titus
Massachusetts Institute of Technology (MIT)
Pablo Torne
Institut de Radioastronomie Millimétrique (IRAM)
Max-Planck-Gesellschaft
Tyler Trent
University of Arizona
Sascha Trippe
Seoul National University
Matthew Turk
University of Illinois
Huib Jan van Langevelde
Universiteit Leiden
University of New Mexico
Joint Institute for VLBI in Europe (JIVE)
Daniel R. van Rossum
Radboud Universiteit
Jesse Vos
Radboud Universiteit
Jan Wagner
Max-Planck-Gesellschaft
Derek Ward-Thompson
University of Central Lancashire
John Wardle
Brandeis University
Jonathan Weintroub
Harvard-Smithsonian Center for Astrophysics
Harvard University
Norbert Wex
Max-Planck-Gesellschaft
Robert Wharton
Max-Planck-Gesellschaft
Kaj Wiik
Turun Yliopisto
Gunther Witzel
Max-Planck-Gesellschaft
Michael F. Wondrak
Radboud Universiteit
George N. Wong
Princeton University
Institute for Advanced Study
Qingwen Wu
Huazhong University of Science and Technology
Paul Yamaguchi
Harvard-Smithsonian Center for Astrophysics
Doosoo Yoon
Universiteit Van Amsterdam
Andre Young
Radboud Universiteit
Ken Young
Harvard-Smithsonian Center for Astrophysics
Ziri Younsi
University College London (UCL)
Johann Wolfgang Goethe Universität Frankfurt am Main
Feng Yuan
Chinese Academy of Sciences
Ye-Fei Yuan
University of Science and Technology of China
J. Anton Zensus
Max-Planck-Gesellschaft
Shuo Zhang
Bard College
Shan-Shan Zhao
Chinese Academy of Sciences
Astrophysical Journal
0004-637X (ISSN) 1538-4357 (eISSN)
Vol. 943 2 170RadioNet 4
Europeiska kommissionen (EU) (EC/H2020/730562), 2017-01-01 -- 2020-12-31.
Ämneskategorier (SSIF 2011)
Astronomi, astrofysik och kosmologi
DOI
10.3847/1538-4357/acaea8