DOAJ Open Access 2023

The Event Horizon Telescope Image of the Quasar NRAO 530

Svetlana Jorstad Maciek Wielgus Rocco Lico Sara Issaoun Avery E. Broderick +265 lainnya

Abstrak

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 ∼20 μ 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 ∼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 μ as along a position angle ∼ −28°. 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.

Topik & Kata Kunci

Penulis (270)

S

Svetlana Jorstad

M

Maciek Wielgus

R

Rocco Lico

S

Sara Issaoun

A

Avery E. Broderick

D

Dominic W. Pesce

J

Jun Liu

G

Guang-Yao Zhao

T

Thomas P. Krichbaum

L

Lindy Blackburn

C

Chi-kwan Chan

M

Michael Janssen

V

Venkatessh Ramakrishnan

K

Kazunori Akiyama

A

Antxon Alberdi

J

Juan Carlos Algaba

K

Katherine L. Bouman

I

Ilje Cho

A

Antonio Fuentes

J

José L. Gómez

M

Mark Gurwell

M

Michael D. Johnson

J

Jae-Young Kim

R

Ru-Sen Lu

I

Iván Martí-Vidal

M

Monika Moscibrodzka

F

Felix M. Pötzl

E

Efthalia Traianou

I

Ilse van Bemmel

W

Walter Alef

R

Richard Anantua

K

Keiichi Asada

R

Rebecca Azulay

U

Uwe Bach

A

Anne-Kathrin Baczko

D

David Ball

M

Mislav Baloković

J

John Barrett

M

Michi Bauböck

B

Bradford A. Benson

D

Dan Bintley

R

Raymond Blundell

G

Geoffrey C. Bower

H

Hope Boyce

M

Michael Bremer

C

Christiaan D. Brinkerink

R

Roger Brissenden

S

Silke Britzen

D

Dominique Broguiere

T

Thomas Bronzwaer

S

Sandra Bustamante

D

Do-Young Byun

J

John E. Carlstrom

C

Chiara Ceccobello

A

Andrew Chael

K

Koushik Chatterjee

S

Shami Chatterjee

M

Ming-Tang Chen

Y

Yongjun Chen

X

Xiaopeng Cheng

P

Pierre Christian

N

Nicholas S. Conroy

J

John E. Conway

J

James M. Cordes

T

Thomas M. Crawford

G

Geoffrey B. Crew

A

Alejandro Cruz-Osorio

Y

Yuzhu Cui

J

Jordy Davelaar

M

Mariafelicia De Laurentis

R

Roger Deane

J

Jessica Dempsey

G

Gregory Desvignes

J

Jason Dexter

V

Vedant Dhruv

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Sheperd S. Doeleman

S

Sean Dougal

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Sergio A. Dzib

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Ralph P. Eatough

R

Razieh Emami

H

Heino Falcke

J

Joseph Farah

V

Vincent L. Fish

E

Ed Fomalont

H

H. Alyson Ford

R

Raquel Fraga-Encinas

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William T. Freeman

P

Per Friberg

C

Christian M. Fromm

P

Peter Galison

C

Charles F. Gammie

R

Roberto García

O

Olivier Gentaz

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Boris Georgiev

C

Ciriaco Goddi

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Roman Gold

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Arturo I. Gómez-Ruiz

M

Minfeng Gu

K

Kazuhiro Hada

D

Daryl Haggard

K

Kari Haworth

M

Michael H. Hecht

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Ronald Hesper

D

Dirk Heumann

L

Luis C. Ho

P

Paul Ho

M

Mareki Honma

C

Chih-Wei L. Huang

L

Lei Huang

D

David H. Hughes

S

Shiro Ikeda

C

C. M. Violette Impellizzeri

M

Makoto Inoue

D

David J. James

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Buell T. Jannuzi

B

Britton Jeter

W

Wu Jiang

A

Alejandra Jiménez-Rosales

A

Abhishek V. Joshi

T

Taehyun Jung

M

Mansour Karami

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Ramesh Karuppusamy

T

Tomohisa Kawashima

G

Garrett K. Keating

M

Mark Kettenis

D

Dong-Jin Kim

J

Jongsoo Kim

J

Junhan Kim

M

Motoki Kino

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Jun Yi Koay

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Prashant Kocherlakota

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Yutaro Kofuji

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Shoko Koyama

C

Carsten Kramer

M

Michael Kramer

C

Cheng-Yu Kuo

N

Noemi La Bella

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Tod R. Lauer

D

Daeyoung Lee

S

Sang-Sung Lee

P

Po Kin Leung

A

Aviad Levis

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Zhiyuan Li

G

Greg Lindahl

M

Michael Lindqvist

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Mikhail Lisakov

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Kuo Liu

E

Elisabetta Liuzzo

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Wen-Ping Lo

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Andrei P. Lobanov

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Laurent Loinard

C

Colin J. Lonsdale

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Nicholas R. MacDonald

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Jirong Mao

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Nicola Marchili

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Sera Markoff

D

Daniel P. Marrone

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Alan P. Marscher

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Satoki Matsushita

L

Lynn D. Matthews

L

Lia Medeiros

K

Karl M. Menten

D

Daniel Michalik

I

Izumi Mizuno

Y

Yosuke Mizuno

J

James M. Moran

K

Kotaro Moriyama

C

Cornelia Müller

A

Alejandro Mus

G

Gibwa Musoke

I

Ioannis Myserlis

A

Andrew Nadolski

H

Hiroshi Nagai

N

Neil M. Nagar

M

Masanori Nakamura

R

Ramesh Narayan

G

Gopal Narayanan

I

Iniyan Natarajan

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Antonios Nathanail

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Santiago Navarro Fuentes

J

Joey Neilsen

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Roberto Neri

C

Chunchong Ni

A

Aristeidis Noutsos

M

Michael A. Nowak

J

Junghwan Oh

H

Hiroki Okino

H

Héctor Olivares

G

Gisela N. Ortiz-León

T

Tomoaki Oyama

F

Feryal Özel

D

Daniel C. M. Palumbo

G

Georgios Filippos Paraschos

J

Jongho Park

H

Harriet Parsons

N

Nimesh Patel

U

Ue-Li Pen

V

Vincent Piétu

R

Richard Plambeck

A

Aleksandar PopStefanija

O

Oliver Porth

B

Ben Prather

J

Jorge A. Preciado-López

D

Dimitrios Psaltis

H

Hung-Yi Pu

R

Ramprasad Rao

M

Mark G. Rawlings

A

Alexander W. Raymond

L

Luciano Rezzolla

A

Angelo Ricarte

B

Bart Ripperda

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Freek Roelofs

A

Alan Rogers

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Eduardo Ros

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Cristina Romero-Cañizales

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Arash Roshanineshat

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Helge Rottmann

A

Alan L. Roy

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Ignacio Ruiz

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Chet Ruszczyk

K

Kazi L. J. Rygl

S

Salvador Sánchez

D

David Sánchez-Argüelles

M

Miguel Sánchez-Portal

M

Mahito Sasada

K

Kaushik Satapathy

T

Tuomas Savolainen

F

F. Peter Schloerb

J

Jonathan Schonfeld

K

Karl-Friedrich Schuster

L

Lijing Shao

Z

Zhiqiang Shen

D

Des Small

B

Bong Won Sohn

J

Jason SooHoo

K

Kamal Souccar

H

He Sun

F

Fumie Tazaki

A

Alexandra J. Tetarenko

P

Paul Tiede

R

Remo P. J. Tilanus

M

Michael Titus

P

Pablo Torne

T

Tyler Trent

S

Sascha Trippe

M

Matthew Turk

H

Huib Jan van Langevelde

D

Daniel R. van Rossum

J

Jesse Vos

J

Jan Wagner

D

Derek Ward-Thompson

J

John Wardle

J

Jonathan Weintroub

N

Norbert Wex

R

Robert Wharton

K

Kaj Wiik

G

Gunther Witzel

M

Michael F. Wondrak

G

George N. Wong

Q

Qingwen Wu

P

Paul Yamaguchi

D

Doosoo Yoon

A

André Young

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Ken Young

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Ziri Younsi

F

Feng Yuan

Y

Ye-Fei Yuan

J

J. Anton Zensus

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Shuo Zhang

S

Shan-Shan Zhao

Format Sitasi

Jorstad, S., Wielgus, M., Lico, R., Issaoun, S., Broderick, A.E., Pesce, D.W. et al. (2023). The Event Horizon Telescope Image of the Quasar NRAO 530. https://doi.org/10.3847/1538-4357/acaea8

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Informasi Jurnal
Tahun Terbit
2023
Sumber Database
DOAJ
DOI
10.3847/1538-4357/acaea8
Akses
Open Access ✓