Polarimetric Geometric Modeling for mm-VLBI Observations of Black Holes
Artikel i vetenskaplig tidskrift, 2023
The Event Horizon Telescope (EHT) is a millimeter very long baseline interferometry (VLBI) array that has imaged the apparent shadows of the supermassive black holes M87* and Sagittarius A*. Polarimetric data from these observations contain a wealth of information on the black hole and accretion flow properties. In this work, we develop polarimetric geometric modeling methods for mm-VLBI data, focusing on approaches that fit data products with differing degrees of invariance to broad classes of calibration errors. We establish a fitting procedure using a polarimetric “m-ring” model to approximate the image structure near a black hole. By fitting this model to synthetic EHT data from general relativistic magnetohydrodynamic models, we show that the linear and circular polarization structure can be successfully approximated with relatively few model parameters. We then fit this model to EHT observations of M87* taken in 2017. In total intensity and linear polarization, the m-ring fits are consistent with previous results from imaging methods. In circular polarization, the m-ring fits indicate the presence of event-horizon-scale circular polarization structure, with a persistent dipolar asymmetry and orientation across several days. The same structure was recovered independently of observing band, used data products, and model assumptions. Despite this broad agreement, imaging methods do not produce similarly consistent results. Our circular polarization results, which imposed additional assumptions on the source structure, should thus be interpreted with some caution. Polarimetric geometric modeling provides a useful and powerful method to constrain the properties of horizon-scale polarized emission, particularly for sparse arrays like the EHT.
Författare
F. Roelofs
Harvard-Smithsonian Center for Astrophysics
Michael D. Johnson
Harvard-Smithsonian Center for Astrophysics
A. Chael
Princeton University
Michael Janssen
Max-Planck-Gesellschaft
M. Wielgus
Max-Planck-Gesellschaft
Avery E. Broderick
Perimeter Institute for Theoretical Physics
Kazunori Akiyama
Harvard University
Antxon Alberdi
Instituto de Astrofisica de Andalucía (IAA)
Walter Alef
Max-Planck-Gesellschaft
Juan-Carlos Algaba
University of Malaya
Richard Anantua
Harvard-Smithsonian Center for Astrophysics
K. Asada
Academia Sinica
R. Azulay
Max-Planck-Gesellschaft
U. Bach
Max-Planck-Gesellschaft
A. K. Baczko
Max-Planck-Gesellschaft
David Ball
University of Arizona
Mislav Baloković
Yale University
John Barrett
Massachusetts Institute of Technology (MIT)
M. Bauböck
University of Illinois
Bradford A. Benson
Fermi National Accelerator Laboratory
Dan Bintley
East Asian Observatory
Lindy Blackburn
Harvard-Smithsonian Center for Astrophysics
R. Blundell
Harvard-Smithsonian Center for Astrophysics
K. L. Bouman
California Institute of Technology (Caltech)
G. C. Bower
Academia Sinica
Hope Boyce
McGill University
M. Bremer
Institut de Radioastronomie Millimétrique (IRAM)
C. D. Brinkerink
Radboud Universiteit
Roger Brissenden
Harvard-Smithsonian Center for Astrophysics
Silke Britzen
Max-Planck-Gesellschaft
D. Broguière
Institut de Radioastronomie Millimétrique (IRAM)
Thomas Bronzwaer
Radboud Universiteit
Sandra Bustamente
University of Massachusetts
Do Young Byun
Korea Astronomy and Space Science Institute
J. E. Carlstrom
University of Chicago
Chiara Ceccobello
Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik
Chi Kwan Chan
University of Arizona
Dominic O. Chang
Harvard-Smithsonian Center for Astrophysics
Koushik Chatterjee
Harvard-Smithsonian Center for Astrophysics
S. Chatterjee
Harvard University
Ming Tang Chen
Academia Sinica
Yongjun Chen
Chinese Academy of Sciences
X. P. Cheng
Korea Astronomy and Space Science Institute
I. Cho
Instituto de Astrofisica de Andalucía (IAA)
Pierre Christian
Fairfield University
Nicholas S. Conroy
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
G. Crew
Massachusetts Institute of Technology (MIT)
Alejandro Cruz-Osorio
Universidad Nacional Autónoma de México
Yuzhu Cui
Shanghai Jiao Tong University
Rohan Dahale
Instituto de Astrofisica de Andalucía (IAA)
Jordy Davelaar
Radboud Universiteit
Mariafelicia De Laurentis
Universita degli Studi di Napoli Federico II
R. P. Deane
Universiteit van Pretoria
Jessica Dempsey
East Asian Observatory
Gregory Desvignes
Max-Planck-Gesellschaft
Jason Dexter
University of Colorado at Boulder
Vedant Dhruv
University of Illinois
S. Doeleman
Harvard-Smithsonian Center for Astrophysics
Sean Dougal
University of Arizona
Sergio A. Dzib
Max-Planck-Gesellschaft
Ralph P. Eatough
Max-Planck-Gesellschaft
Razieh Emami
Harvard-Smithsonian Center for Astrophysics
H.D. Falcke
Radboud Universiteit
Joseph R. Farah
University of California at Santa Barbara
V. Fish
Massachusetts Institute of Technology (MIT)
E. Fomalont
National Radio Astronomy Observatory Socorro
H. Alyson Ford
University of Arizona
Marianna Foschi
Instituto de Astrofisica de Andalucía (IAA)
R. Fraga-Encinas
Radboud Universiteit
William T. Freeman
Massachusetts Institute of Technology (MIT)
P. Friberg
East Asian Observatory
Christian M. Fromm
Max-Planck-Gesellschaft
Antonio Fuentes
Instituto de Astrofisica de Andalucía (IAA)
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
C. Goddi
Istituto Nazionale di Fisica Nucleare
R. Gold
Syddansk Universitet
Arturo I. Gómez-Ruiz
Instituto Nacional de Astrofísica, Óptica y Electrońica
J. L. Gomez
Instituto de Astrofisica de Andalucía (IAA)
Minfeng Gu
Shanghai Astronomical Observatory
M. Gurwell
Harvard-Smithsonian Center for Astrophysics
K. Hada
The Graduate University for Advanced Studies (SOKENDAI)
Daryl Haggard
McGill University
Kari Haworth
Harvard-Smithsonian Center for Astrophysics
Michael H. Hecht
Massachusetts Institute of Technology (MIT)
R. Hesper
Rijksuniversiteit Groningen
Dirk Heumann
University of Arizona
Luis C. Ho
P. T. P. Ho
Academia Sinica
Mareki Honma
The Graduate University for Advanced Studies (SOKENDAI)
Chih Wei L. Huang
Academia Sinica
Lei Huang
Academia Sinica
D. Hughes
Instituto Nacional de Astrofísica, Óptica y Electrońica
Shiro Ikeda
National Astronomical Observatory of Japan
C. M. V. Impellizzeri
University of Tokyo
Makoto Inoue
Academia Sinica
S. Issaoun
Harvard-Smithsonian Center for Astrophysics
David J. James
ASTRAVEO
Buell T. Jannuzi
University of Arizona
Britton Jeter
Academia Sinica
Wu Jiang
Shanghai Astronomical Observatory
Alejandra Jimenez-Rosales
Radboud Universiteit
S.G. Jorstad
Boston University
Abhishek V. Joshi
University of Illinois
Taehyun Jung
Korea Astronomy and Space Science Institute
Mansour Karami
Perimeter Institute for Theoretical Physics
R. Karuppusamy
Max-Planck-Gesellschaft
Tomohisa Kawashima
University of Tokyo
G. Keating
Harvard-Smithsonian Center for Astrophysics
M. M. Kettenis
Kogakuin University of Technology and Engineering
Dong-Jin Kim
Max-Planck-Gesellschaft
Jae-Young Kim
Max-Planck-Gesellschaft
Jongsoo Kim
Korea Astronomy and Space Science Institute
Junhan Kim
California Institute of Technology (Caltech)
M. Kino
National Astronomical Observatory of Japan
Jun Yi Koay
Academia Sinica
Prashant Kocherlakota
Johann Wolfgang Goethe Universität Frankfurt am Main
Yutaro Kofuji
National Astronomical Observatory of Japan
Patrick M. Koch
Academia Sinica
Shoko Koyama
Academia Sinica
C. Kramer
Princeton University
Joana A. Kramer
Max-Planck-Gesellschaft
M. Kramer
Max-Planck-Gesellschaft
T.P. Krichbaum
Max-Planck-Gesellschaft
Cheng-Yu Kuo
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
Korea Astronomy and Space Science Institute
Aviad Levis
California Institute of Technology (Caltech)
Zhiyuan Li
Nanjing University
R. Lico
Instituto de Astrofisica de Andalucía (IAA)
Greg Lindahl
Harvard-Smithsonian Center for Astrophysics
Michael Lindqvist
Chalmers, Rymd-, geo- och miljövetenskap, Onsala rymdobservatorium
Mikhail Lisakov
Max-Planck-Gesellschaft
Jun Liu
Max-Planck-Gesellschaft
Kuo Liu
Max-Planck-Gesellschaft
Elisabetta Liuzzo
Istituto nazionale di astrofisica (INAF)
Wen-Ping Lo
Academia Sinica
A. P. Lobanov
Max-Planck-Gesellschaft
L. Loinard
Colin Lonsdale
Massachusetts Institute of Technology (MIT)
Amy E. Lowitz
University of Arizona
R.S. Lu
Max-Planck-Gesellschaft
N. R. Macdonald
Max-Planck-Gesellschaft
Jirong Mao
Chinese Academy of Sciences
Nicola Marchili
Max-Planck-Gesellschaft
S. Markoff
Universiteit Van Amsterdam
D. P. Marrone
University of Arizona
A. Marscher
Boston University
Ivan Marti-Vidal
Universitat de Valencia
S. Matsushita
Academia Sinica
Lynn D. Matthews
Massachusetts Institute of Technology (MIT)
Lia Medeiros
K. Menten
Max-Planck-Gesellschaft
Daniel Michalik
University of Chicago
Izumi Mizuno
East Asian Observatory
Yosuke Mizuno
James M. Moran
Harvard-Smithsonian Center for Astrophysics
Kotaro Moriyama
Massachusetts Institute of Technology (MIT)
M. Mościbrodzka
Radboud Universiteit
Wanga Mulaudzi
Universiteit Van Amsterdam
C. Müller
Radboud Universiteit
Hendrik Müller
Max-Planck-Gesellschaft
A. Mus
Universitat de Valencia
Gibwa Musoke
Radboud Universiteit
I. Myserlis
Institut de Radioastronomie Millimétrique (IRAM)
Andrew Nadolski
University of Illinois
H. Nagai
National Astronomical Observatory of Japan
N. M. Nagar
Masanori Nakamura
Academia Sinica
Ramesh Narayan
Harvard-Smithsonian Center for Astrophysics
Gopal Narayanan
Iniyan Natarajan
Harvard-Smithsonian Center for Astrophysics
Antonios Nathanail
National Technical University of Athens (NTUA)
Santiago Navarro Fuentes
Institut de Radioastronomie Millimétrique (IRAM)
Joseph Neilsen
Villanova University
R. Neri
Institut de Radioastronomie Millimétrique (IRAM)
Chunchong Ni
Perimeter Institute for Theoretical Physics
A. Noutsos
Max-Planck-Gesellschaft
Michael A. Nowak
University of Washington
Junghwan Oh
Sejong University
Hiroki Okino
National Astronomical Observatory of Japan
Héctor Olivares
Radboud Universiteit
G.N. Ortiz-León
Max-Planck-Gesellschaft
Tomoaki Oyama
Feryal Özel
Daniel C.M. Palumbo
Harvard-Smithsonian Center for Astrophysics
Georgios Filippos Paraschos
Max-Planck-Gesellschaft
Jongho Park
Kyung Hee University
Harriet Parsons
East Asian Observatory
N. Patel
Harvard-Smithsonian Center for Astrophysics
U. L. Pen
Perimeter Institute for Theoretical Physics
Dominic W. Pesce
Harvard-Smithsonian Center for Astrophysics
Vincent Piétu
Institut de Radioastronomie Millimétrique (IRAM)
Richard L. Plambeck
University of California at Berkeley
Aleksandar PopStefanija
University of Massachusetts
Oliver Porth
Universiteit Van Amsterdam
Felix M. Pötzl
Max-Planck-Gesellschaft
Ben Prather
University of Illinois
Jorge A. Preciado-López
Perimeter Institute for Theoretical Physics
Dimitrios Psaltis
Hung-Yi Pu
Academia Sinica
Venkatessh Ramakrishnan
Universidad de Concepción
R. Rao
Harvard-Smithsonian Center for Astrophysics
M.G. Rawlings
East Asian Observatory
Alexander W. Raymond
Harvard-Smithsonian Center for Astrophysics
Luciano Rezzolla
Angelo Ricarte
Harvard-Smithsonian Center for Astrophysics
Bart Ripperda
Perimeter Institute for Theoretical Physics
A.E.E. Rogers
Massachusetts Institute of Technology (MIT)
C. Romero-Cañizales
Academia Sinica
Eduardo Ros
Max-Planck-Gesellschaft
Arash Roshanineshat
University of Arizona
H. Rottmann
Max-Planck-Gesellschaft
A. Roy
Max-Planck-Gesellschaft
Ignacio Ruiz
C. Ruszczyk
Massachusetts Institute of Technology (MIT)
Kazi L.J. Rygl
Istituto nazionale di astrofisica (INAF)
S. Sanchez
Institut de Radioastronomie Millimétrique (IRAM)
David Sánchez-Arguelles
Instituto Nacional de Astrofísica, Óptica y Electrońica
M. Sánchez Portal
Institut de Radioastronomie Millimétrique (IRAM)
Mahito Sasada
National Astronomical Observatory of Japan
Kaushik Satapathy
University of Arizona
T. Savolainen
Max-Planck-Gesellschaft
F. P. Schloerb
Jonathan Schonfeld
Harvard-Smithsonian Center for Astrophysics
K. Schuster
McGill University
Lijing Shao
Max-Planck-Gesellschaft
Zhi Qiang Shen
Shanghai Astronomical Observatory
Des Small
Joint Institute for VLBI in Europe (JIVE)
B. W. Sohn
Korea Astronomy and Space Science Institute
J. SooHoo
Massachusetts Institute of Technology (MIT)
León David Sosapanta Salas
Universiteit Van Amsterdam
Kamal Souccar
University of Massachusetts
He Sun
Peking University
Fumie Tazaki
National Astronomical Observatory of Japan
Alexandra J. Tetarenko
University of Lethbridge
Paul Tiede
Harvard-Smithsonian Center for Astrophysics
R. P. J. Tilanus
Radboud Universiteit
M. Titus
Massachusetts Institute of Technology (MIT)
Pablo Torne
Max-Planck-Gesellschaft
Teresa Toscano
Instituto de Astrofisica de Andalucía (IAA)
E. Traianou
Max-Planck-Gesellschaft
Tyler Trent
University of Arizona
S. Trippe
Seoul National University
Matthew Turk
University of Illinois
I. van Bemmel
Joint Institute for VLBI in Europe (JIVE)
H. J. van Langevelde
Joint Institute for VLBI in Europe (JIVE)
Daniel R. van Rossum
Radboud Universiteit
Jesse Vos
Radboud Universiteit
Jan Wagner
Max-Planck-Gesellschaft
D. Ward-Thompson
University of Central Lancashire
John Wardle
Brandeis University
Jasmin E. Washington
University of Arizona
J. Weintroub
Harvard-Smithsonian Center for Astrophysics
Robert Wharton
Max-Planck-Gesellschaft
K. Wiik
Gunther Witzel
Max-Planck-Gesellschaft
Michael F. Wondrak
Radboud Universiteit
George N. Wong
Princeton University
Qingwen Wu
Huazhong University of Science and Technology
Nitika Yadlapalli
California Institute of Technology (Caltech)
Paul Yamaguchi
Harvard-Smithsonian Center for Astrophysics
Aristomenis Yfantis
Radboud Universiteit
Doosoo Yoon
Universiteit Van Amsterdam
A. Young
Radboud Universiteit
K. Young
Harvard-Smithsonian Center for Astrophysics
Ziri Younsi
University College London (UCL)
Wei Yu
Harvard-Smithsonian Center for Astrophysics
Feng Yuan
Chinese Academy of Sciences
Ye-Fei Yuan
University of Science and Technology of China
A.J. Zensus
Max-Planck-Gesellschaft
Shuo Zhang
Michigan State University
G. Y. Zhao
Instituto de Astrofisica de Andalucía (IAA)
Shan-Shan Zhao
Instituto de Astrofisica de Andalucía (IAA)
Astrophysical Journal Letters
2041-8205 (ISSN) 2041-8213 (eISSN)
Vol. 957 2 L21Onsala rymdobservatorium infrastruktur
Vetenskapsrådet (VR) (2017-00648), 2018-01-01 -- 2021-12-31.
RadioNet 4
Europeiska kommissionen (EU) (EC/H2020/730562), 2017-01-01 -- 2020-12-31.
Ämneskategorier
Astronomi, astrofysik och kosmologi
DOI
10.3847/2041-8213/acff6f