First M87 Event Horizon Telescope Results. IX. Detection of Near-horizon Circular Polarization

Akiyama, Kazunori; Alberdi, Antxon; Alef, Walter; Algaba, Juan Carlos; Anantua, Richard; Asada, Keiichi; Azulay, Rebecca; Bach, Uwe; Baczko, Anne-Kathrin; Ball, David; Baloković, Mislav; Barrett, John; Bauböck, Michi; Benson, Bradford A.; Bintley, Dan; Blackburn, Lindy; Blundell, Raymond; Bouman, Katherine L.; Bower, Geoffrey C.; Boyce, Hope; Bremer, Michael; Brinkerink, Christiaan D.; Brissenden, Roger; Britzen, Silke; Broderick, Avery E.; Broguiere, Dominique; Bronzwaer, Thomas; Bustamante, Sandra; Byun, Do-Young; Carlstrom, John E.; Ceccobello, Chiara; Chael, Andrew; Chan, Chi-kwan; Chang, Dominic O.; Chatterjee, Koushik; Chatterjee, Shami; Chen, Ming-Tang; Chen 陈, Yongjun 永军; Cheng, Xiaopeng; Cho, Ilje; Christian, Pierre; Conroy, Nicholas S.; Conway, John E.; Cordes, James M.; Crawford, Thomas M.; Crew, Geoffrey B.; Cruz-Osorio, Alejandro; Cui 崔, Yuzhu 玉竹; Dahale, Rohan; Davelaar, Jordy; De Laurentis, Mariafelicia; Deane, Roger; Dempsey, Jessica; Desvignes, Gregory; Dexter, Jason; Dhruv, Vedant; Doeleman, Sheperd S.; Dougal, Sean; Dzib, Sergio A.; Eatough, Ralph P.; Emami, Razieh; Falcke, Heino; Farah, Joseph; Fish, Vincent L.; Fomalont, Ed; Ford, H. Alyson; Foschi, Marianna; Fraga-Encinas, Raquel; Freeman, William T.; Friberg, Per; Fromm, Christian M.; Fuentes, Antonio; Galison, Peter; Gammie, Charles F.; García, Roberto; Gentaz, Olivier; Georgiev, Boris; Goddi, Ciriaco; Gold, Roman; Gómez-Ruiz, Arturo I.; Gómez, José L.; Gu 顾, Minfeng 敏峰; Gurwell, Mark; Hada, Kazuhiro; Haggard, Daryl; Haworth, Kari; Hecht, Michael H.; Hesper, Ronald; Heumann, Dirk; Ho 何, Luis 子山; Ho, Paul; Honma, Mareki; Huang, Chih-Wei L.; Huang 黄, Lei 磊.; Hughes, David H.; Ikeda, Shiro; Impellizzeri, C. Violette; Inoue, Makoto; Issaoun, Sara; James, David J.; Jannuzi, Buell T.; Janssen, Michael; Jeter, Britton; Jiang 江, Wu 悟.; Jiménez-Rosales, Alejandra; Johnson, Michael D.; Jorstad, Svetlana; Joshi, Abhishek V.; Jung, Taehyun; Karami, Mansour; Karuppusamy, Ramesh; Kawashima, Tomohisa; Keating, Garrett K.; Kettenis, Mark; Kim, Dong-Jin; Kim, Jae-Young; Kim, Jongsoo; Kim, Junhan; Kino, Motoki; Koay, Jun Yi; Kocherlakota, Prashant; Kofuji, Yutaro; Koch, Patrick M.; Koyama, Shoko; Kramer, Carsten; Kramer, Joana A.; Kramer, Michael; Krichbaum, Thomas P.; Kuo, Cheng-Yu; La Bella, Noemi; Lauer, Tod R.; Lee, Daeyoung; Lee, Sang-Sung; Leung, Po Kin; Levis, Aviad; Li 李, Zhiyuan 志远; Lico, Rocco; Lindahl, Greg; Lindqvist, Michael; Lisakov, Mikhail; Liu 刘, Jun 俊.; Liu, Kuo; Liuzzo, Elisabetta; Lo, Wen-Ping; Lobanov, Andrei P.; Loinard, Laurent; Lonsdale, Colin J.; Lowitz, Amy E.; Lu 路, Ru-Sen 如森; MacDonald, Nicholas R.; Mao 毛, Jirong 基荣; Marchili, Nicola; Markoff, Sera; Marrone, Daniel P.; Marscher, Alan P.; Martí-Vidal, Iván; Matsushita, Satoki; Matthews, Lynn D.; Medeiros, Lia; Menten, Karl M.; Michalik, Daniel; Mizuno, Izumi; Mizuno, Yosuke; Moran, James M.; Moriyama, Kotaro; Moscibrodzka, Monika; Mulaudzi, Wanga; Müller, Cornelia; Müller, Hendrik; Mus, Alejandro; Musoke, Gibwa; Myserlis, Ioannis; Nadolski, Andrew; Nagai, Hiroshi; Nagar, Neil M.; Nakamura, Masanori; Narayan, Ramesh; Narayanan, Gopal; Natarajan, Iniyan; Nathanail, Antonios; Fuentes, Santiago Navarro; Neilsen, Joey; Neri, Roberto; Ni, Chunchong; Noutsos, Aristeidis; Nowak, Michael A.; Oh, Junghwan; Okino, Hiroki; Olivares, Héctor; Ortiz-León, Gisela N.; Oyama, Tomoaki; Özel, Feryal; Palumbo, Daniel M.; Paraschos, Georgios Filippos; Park, Jongho; Parsons, Harriet; Patel, Nimesh; Pen, Ue-Li; Pesce, Dominic W.; Piétu, Vincent; Plambeck, Richard; PopStefanija, Aleksandar; Porth, Oliver; Pötzl, Felix M.; Prather, Ben; Preciado-López, Jorge A.; Psaltis, Dimitrios; Pu, Hung-Yi; Ramakrishnan, Venkatessh; Rao, Ramprasad; Rawlings, Mark G.; Raymond, Alexander W.; Rezzolla, Luciano; Ricarte, Angelo; Ripperda, Bart; Roelofs, Freek; Rogers, Alan; Romero-Cañizales, Cristina; Ros, Eduardo; Roshanineshat, Arash; Rottmann, Helge; Roy, Alan L.; Ruiz, Ignacio; Ruszczyk, Chet; Rygl, Kazi J.; Sánchez, Salvador; Sánchez-Argüelles, David; Sánchez-Portal, Miguel; Sasada, Mahito; Satapathy, Kaushik; Savolainen, Tuomas; Schloerb, F. Peter; Schonfeld, Jonathan; Schuster, Karl-Friedrich; Shao, Lijing; Shen 沈, Zhiqiang 志强; Small, Des; Sohn, Bong Won; SooHoo, Jason; Sosapanta Salas, León David; Souccar, Kamal; Sun 孙, He 赫.; Tazaki, Fumie; Tetarenko, Alexandra J.; Tiede, Paul; Tilanus, Remo J.; Titus, Michael; Torne, Pablo; Toscano, Teresa; Traianou, Efthalia; Trent, Tyler; Trippe, Sascha; Turk, Matthew; van Bemmel, Ilse; van Langevelde, Huib Jan; van Rossum, Daniel R.; Vos, Jesse; Wagner, Jan; Ward-Thompson, Derek; Wardle, John; Washington, Jasmin E.; Weintroub, Jonathan; Wharton, Robert; Wielgus, Maciek; Wiik, Kaj; Witzel, Gunther; Wondrak, Michael F.; Wong, George N.; Wu 吴, Qingwen 庆文; Yadlapalli, Nitika; Yamaguchi, Paul; Yfantis, Aristomenis; Yoon, Doosoo; Young, André; Young, Ken; Younsi, Ziri; Yu 于, Wei 威.; Yuan 袁, Feng 峰.; Yuan 袁, Ye-Fei 业飞; Zensus, J. Anton; Zhang, Shuo; Zhao, Guang-Yao; Zhao 赵, Shan-Shan 杉杉

doi:10.3847/2041-8213/acff70

Title: First M87 Event Horizon Telescope Results. IX. Detection of Near-horizon Circular Polarization

Journal Article · 07 November 2023 · The Astrophysical Journal. Letters

DOI: https://doi.org/10.3847/2041-8213/acff70 · OSTI ID:2336766

^[1];

; Alef, Walter;

;

; Ball, David;

;

; Bintley, Dan;

;

Massachusetts Institute of Technology (MIT), Westford, MA (United States); National Astronomical Observatory of Japan, Tokyo (Japan); Harvard University, Cambridge, MA (United States); Event Horizon Telescope Collaboration. et al.

Event Horizon Telescope (EHT) observations have revealed a bright ring of emission around the supermassive black hole at the center of the M87 galaxy. EHT images in linear polarization have further identified a coherent spiral pattern around the black hole, produced from ordered magnetic fields threading the emitting plasma. Here we present the first analysis of circular polarization using EHT data, acquired in 2017, which can potentially provide additional insights into the magnetic fields and plasma composition near the black hole. Interferometric closure quantities provide convincing evidence for the presence of circularly polarized emission on event-horizon scales. We produce images of the circular polarization using both traditional and newly developed methods. All methods find a moderate level of resolved circular polarization across the image ( $$\langle$$|v|$$\rangle$$ < 3.7%), consistent with the low image-integrated circular polarization fraction measured by the Atacama Large Millimeter/submillimeter Array (|v_int|< 1%). Despite this broad agreement, the methods show substantial variation in the morphology of the circularly polarized emission, indicating that our conclusions are strongly dependent on the imaging assumptions because of the limited baseline coverage, uncertain telescope gain calibration, and weakly polarized signal. We include this upper limit in an updated comparison to general relativistic magnetohydrodynamic simulation models. This analysis reinforces the previously reported preference for magnetically arrested accretion flow models. We find that most simulations naturally produce a low level of circular polarization consistent with our upper limit and that Faraday conversion is likely the dominant production mechanism for circular polarization at 230 GHz in M87*.

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Research Organization:: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP)

Contributing Organization:: Event Horizon Telescope Collaboration

Grant/Contract Number:: AC02-07CH11359

OSTI ID:: 2336766

Alternate ID(s):: OSTI ID: 2346182

Report Number(s):: FERMILAB-PUB--23-146-PPD; arXiv:2311.10976; oai:inspirehep.net:2720377

Journal Information:: The Astrophysical Journal. Letters, Journal Name: The Astrophysical Journal. Letters Journal Issue: 2 Vol. 957; ISSN 2041-8205

Publisher:: IOP PublishingCopyright Statement

Country of Publication:: United States

Language:: English

References (110)

Interferometric Imaging Directly with Closure Phases and Closure Amplitudes Chael, Andrew A.; Johnson, Michael D.; Bouman, Katherine L. The Astrophysical Journal, Vol. 857, Issue 1 https://doi.org/10.3847/1538-4357/aab6a8	journal	April 2018
Array programming with NumPy Harris, Charles R.; Millman, K. Jarrod; van der Walt, Stéfan J. Nature, Vol. 585, Issue 7825 https://doi.org/10.1038/s41586-020-2649-2	journal	September 2020
Comparison of the ion-to-electron temperature ratio prescription: GRMHD simulations with electron thermodynamics Mizuno, Yosuke; Fromm, Christian M.; Younsi, Ziri Monthly Notices of the Royal Astronomical Society, Vol. 506, Issue 1 https://doi.org/10.1093/mnras/stab1753	journal	June 2021
EHT M87 Polarized Data Collaboration, The Event Horizon Telescope CyVerse Data Commons https://doi.org/10.25739/q46m-m857	dataset	January 2023
Impact of non-thermal particles on the spectral and structural properties of M87 Fromm, Christian M.; Cruz-Osorio, Alejandro; Mizuno, Yosuke Astronomy & Astrophysics, Vol. 660 https://doi.org/10.1051/0004-6361/202142295	journal	April 2022
Jets in magnetically arrested hot accretion flows: geometry, power, and black hole spin-down Narayan, Ramesh; Chael, Andrew; Chatterjee, Koushik Monthly Notices of the Royal Astronomical Society, Vol. 511, Issue 3 https://doi.org/10.1093/mnras/stac285	journal	February 2022
Hybrid Thermal‐Nonthermal Synchrotron Emission from Hot Accretion Flows Ozel, Feryal; Psaltis, Dimitrios; Narayan, Ramesh The Astrophysical Journal, Vol. 541, Issue 1 https://doi.org/10.1086/309396	journal	September 2000
A Cosmic Battery Contopoulos, Ioannis; Kazanas, Demosthenes The Astrophysical Journal, Vol. 508, Issue 2 https://doi.org/10.1086/306426	journal	December 1998
First M87 Event Horizon Telescope Results. VIII. Magnetic Field Structure near The Event Horizon Akiyama, Kazunori; Algaba, Juan Carlos; Alberdi, Antxon The Astrophysical Journal Letters, Vol. 910, Issue 1 https://doi.org/10.3847/2041-8213/abe4de	journal	March 2021
Detection and Measurement of Parsec-Scale Circular Polarization in Four [CLC]AGNs[/CLC] Homan, D. C.; Wardle, J. F. C. The Astronomical Journal, Vol. 118, Issue 5 https://doi.org/10.1086/301108	journal	November 1999
The 15-43 GHz parsec-scale circular polarization of 41 active galactic nuclei Vitrishchak, V. M.; Gabuzda, D. C.; Algaba, J. C. Monthly Notices of the Royal Astronomical Society, Vol. 391, Issue 1 https://doi.org/10.1111/j.1365-2966.2008.13919.x	journal	November 2008
Magnetorotational Turbulence and Dynamo in a Collisionless Plasma Kunz, Matthew W.; Stone, James M.; Quataert, Eliot Physical Review Letters, Vol. 117, Issue 23 https://doi.org/10.1103/PhysRevLett.117.235101	journal	December 2016
Using Machine Learning to link black hole accretion flows with spatially resolved polarimetric observables Qiu, Richard; Ricarte, Angelo; Narayan, Ramesh Monthly Notices of the Royal Astronomical Society, Vol. 520, Issue 4 https://doi.org/10.1093/mnras/stad466	journal	February 2023
The accretion of matter by a collapsing star in the presence of a magnetic field Bisnovatyi-Kogan, G. S.; Ruzmaikin, A. A. Astrophysics and Space Science, Vol. 28, Issue 1 https://doi.org/10.1007/BF00642237	journal	May 1974
Particle Acceleration and the Origin of X-Ray Flares in Grmhd Simulations of sgr a* Ball, David; Özel, Feryal; Psaltis, Dimitrios The Astrophysical Journal, Vol. 826, Issue 1 https://doi.org/10.3847/0004-637X/826/1/77	journal	July 2016
Revisiting the radio interferometer measurement equation: I. A full-sky Jones formalism Smirnov, O. M. Astronomy & Astrophysics, Vol. 527 https://doi.org/10.1051/0004-6361/201016082	journal	February 2011
The ALMA Phasing System: A Beamforming Capability for Ultra-high-resolution Science at (Sub)Millimeter Wavelengths Matthews, L. D.; Crew, G. B.; Doeleman, S. S. Publications of the Astronomical Society of the Pacific, Vol. 130, Issue 983 https://doi.org/10.1088/1538-3873/aa9c3d	journal	December 2017
Polarimetric Properties of Event Horizon Telescope Targets from ALMA Goddi, Ciriaco; Martí-Vidal, Iván; Messias, Hugo The Astrophysical Journal Letters, Vol. 910, Issue 1 https://doi.org/10.3847/2041-8213/abee6a	journal	March 2021
Understanding radio polarimetry. I. Mathematical foundations Hamaker, J. P.; Bregman, J. D.; Sault, R. J. Astronomy and Astrophysics Supplement Series, Vol. 117, Issue 1 https://doi.org/10.1051/aas:1996146	journal	May 1996
Numerical Calculation of Magnetobremsstrahlung Emission and Absorption Coefficients Leung, Po Kin; Gammie, Charles F.; Noble, Scott C. The Astrophysical Journal, Vol. 737, Issue 1 https://doi.org/10.1088/0004-637X/737/1/21	journal	July 2011
Determining the Composition of Relativistic Jets from Polarization Maps Anantua, Richard; Emami, Razieh; Loeb, Abraham The Astrophysical Journal, Vol. 896, Issue 1 https://doi.org/10.3847/1538-4357/ab9103	journal	June 2020
The open science grid Pordes, Ruth; Petravick, Don; Kramer, Bill Journal of Physics: Conference Series, Vol. 78 https://doi.org/10.1088/1742-6596/78/1/012057	journal	July 2007
Spurious source generation in mapping from noisy phase-self-calibrated data Martí-Vidal, I.; Marcaide, J. M. Astronomy & Astrophysics, Vol. 480, Issue 1 https://doi.org/10.1051/0004-6361:20078690	journal	December 2007
Monitoring the Morphology of M87* in 2009–2017 with the Event Horizon Telescope Wielgus, Maciek; Akiyama, Kazunori; Blackburn, Lindy The Astrophysical Journal, Vol. 901, Issue 1 https://doi.org/10.3847/1538-4357/abac0d	journal	September 2020
Polarization calibration techniques for the new-generation VLBI Martí-Vidal, I.; Mus, A.; Janssen, M. Astronomy & Astrophysics, Vol. 646 https://doi.org/10.1051/0004-6361/202039527	journal	February 2021
First M87 Event Horizon Telescope Results. VI. The Shadow and Mass of the Central Black Hole Akiyama, Kazunori; Alberdi, Antxon; Alef, Walter The Astrophysical Journal, Vol. 875, Issue 1 https://doi.org/10.3847/2041-8213/ab1141	journal	April 2019
Full-Stokes polarimetry with circularly polarized feeds Myserlis, I.; Angelakis, E.; Kraus, A. Astronomy & Astrophysics, Vol. 609 https://doi.org/10.1051/0004-6361/201630301	journal	January 2018
Direct Imaging of the Cosmic Battery in M87*? Not Yet Contopoulos, Ioannis; Myserlis, Ioannis; Kazanas, Demosthenes Galaxies, Vol. 10, Issue 4 https://doi.org/10.3390/galaxies10040080	journal	June 2022
A Radio Survey for Linear and Circular Polarization in Low-Luminosity Active Galactic Nuclei Bower, Geoffrey C.; Falcke, Heino; Mellon, Richard R. The Astrophysical Journal, Vol. 578, Issue 2 https://doi.org/10.1086/344607	journal	October 2002
The Event Horizon General Relativistic Magnetohydrodynamic Code Comparison Project Porth, Oliver; Chatterjee, Koushik; Narayan, Ramesh The Astrophysical Journal Supplement Series, Vol. 243, Issue 2 https://doi.org/10.3847/1538-4365/ab29fd	journal	August 2019
Software and Techniques for VLBI Data Processing and Analysis Janssen, Michael; Radcliffe, Jack F.; Wagner, Jan Universe, Vol. 8, Issue 10 https://doi.org/10.3390/universe8100527	journal	October 2022
Three‐dimensional Magnetohydrodynamic Simulations of Radiatively Inefficient Accretion Flows Igumenshchev, Igor V.; Narayan, Ramesh; Abramowicz, Marek A. The Astrophysical Journal, Vol. 592, Issue 2 https://doi.org/10.1086/375769	journal	August 2003
First M87 Event Horizon Telescope Results. IV. Imaging the Central Supermassive Black Hole Akiyama, Kazunori; Alberdi, Antxon; Alef, Walter The Astrophysical Journal, Vol. 875, Issue 1 https://doi.org/10.3847/2041-8213/ab0e85	journal	April 2019
Efficient generation of jets from magnetically arrested accretion on a rapidly spinning black hole: Jets from magnetically arrested BH accretion Tchekhovskoy, Alexander; Narayan, Ramesh; McKinney, Jonathan C. Monthly Notices of the Royal Astronomical Society: Letters, Vol. 418, Issue 1 https://doi.org/10.1111/j.1745-3933.2011.01147.x	journal	November 2011
ipole – semi-analytic scheme for relativistic polarized radiative transport Mościbrodzka, M.; Gammie, C. F. Monthly Notices of the Royal Astronomical Society, Vol. 475, Issue 1 https://doi.org/10.1093/mnras/stx3162	journal	December 2017
First Sagittarius A* Event Horizon Telescope Results. III. Imaging of the Galactic Center Supermassive Black Hole Akiyama, Kazunori; Alberdi, Antxon; Alef, Walter The Astrophysical Journal Letters, Vol. 930, Issue 2 https://doi.org/10.3847/2041-8213/ac6429	journal	May 2022
Unraveling circular polarimetric images of magnetically arrested accretion flows near event horizon of a black hole Mościbrodzka, M.; Janiuk, A.; De Laurentis, M. Monthly Notices of the Royal Astronomical Society, Vol. 508, Issue 3 https://doi.org/10.1093/mnras/stab2790	journal	October 2021
Spectral and imaging properties of Sgr A* from high-resolution 3D GRMHD simulations with radiative cooling Yoon, D.; Chatterjee, K.; Markoff, S. B. Monthly Notices of the Royal Astronomical Society, Vol. 499, Issue 3 https://doi.org/10.1093/mnras/staa3031	journal	October 2020
Calibration of ALMA as a Phased Array. ALMA Observations During the 2017 VLBI Campaign Goddi, C.; Martí-Vidal, I.; Messias, H. Publications of the Astronomical Society of the Pacific, Vol. 131, Issue 1001 https://doi.org/10.1088/1538-3873/ab136a	journal	May 2019
Voyager observations of low-energy ions during solar cycle 23 Decker, R. B.; Krimigis, S. M. Advances in Space Research, Vol. 32, Issue 4 https://doi.org/10.1016/S0273-1177(03)00356-9	journal	August 2003
Observational signatures of disc and jet misalignment in images of accreting black holes Chatterjee, K.; Younsi, Z.; Liska, M. Monthly Notices of the Royal Astronomical Society, Vol. 499, Issue 1 https://doi.org/10.1093/mnras/staa2718	journal	September 2020
Two-temperature GRMHD simulations of black hole accretion flows with multiple magnetic loops Jiang, Hong-Xuan; Mizuno, Yosuke; Fromm, Christian M. Monthly Notices of the Royal Astronomical Society, Vol. 522, Issue 2 https://doi.org/10.1093/mnras/stad1106	journal	April 2023
Effects of Hydrogen versus Helium on Electromagnetic Black Hole Observables Wong, George N.; Gammie, Charles F. The Astrophysical Journal, Vol. 937, Issue 2 https://doi.org/10.3847/1538-4357/ac854d	journal	September 2022
Black hole magnetic fields and their imprint on circular polarization images Ricarte, Angelo; Qiu, Richard; Narayan, Ramesh Monthly Notices of the Royal Astronomical Society, Vol. 505, Issue 1 https://doi.org/10.1093/mnras/stab1289	journal	May 2021
First M87 Event Horizon Telescope Results. VII. Polarization of the Ring Akiyama, Kazunori; Algaba, Juan Carlos; Alberdi, Antxon The Astrophysical Journal Letters, Vol. 910, Issue 1 https://doi.org/10.3847/2041-8213/abe71d	journal	March 2021
Updated Transfer Coefficients for Magnetized Plasmas Marszewski, Andrew; Prather, Ben S.; Joshi, Abhishek V. The Astrophysical Journal, Vol. 921, Issue 1 https://doi.org/10.3847/1538-4357/ac1b28	journal	October 2021
MOJAVE: Monitoring of Jets in Active Galactic Nuclei with VLBA Experiments. II. First-Epoch 15 GHz Circular Polarization Results Homan, D. C.; Lister, M. L. The Astronomical Journal, Vol. 131, Issue 3 https://doi.org/10.1086/500256	journal	March 2006
A survey of low-energy electrons in the evening sector of the magnetosphere with OGO 1 and OGO 3 Vasyliunas, Vytenis M. Journal of Geophysical Research, Vol. 73, Issue 9 https://doi.org/10.1029/JA073i009p02839	journal	May 1968
First Sagittarius A* Event Horizon Telescope Results. V. Testing Astrophysical Models of the Galactic Center Black Hole Akiyama, Kazunori; Alberdi, Antxon; Alef, Walter The Astrophysical Journal Letters, Vol. 930, Issue 2 https://doi.org/10.3847/2041-8213/ac6672	journal	May 2022
Matplotlib: A 2D Graphics Environment Hunter, John D. Computing in Science & Engineering, Vol. 9, Issue 3 https://doi.org/10.1109/MCSE.2007.55	journal	January 2007
Polarization as a probe of magnetic field and plasma properties of compact radio sources - Simulation of relativistic jets Jones, T. W. The Astrophysical Journal, Vol. 332 https://doi.org/10.1086/166685	journal	September 1988
Event Horizon Telescope observations of the jet launching and collimation in Centaurus A Janssen, Michael; Falcke, Heino; Kadler, Matthias Nature Astronomy, Vol. 5, Issue 10 https://doi.org/10.1038/s41550-021-01417-w	journal	July 2021
A public code for general relativistic, polarised radiative transfer around spinning black holes Dexter, Jason Monthly Notices of the Royal Astronomical Society, Vol. 462, Issue 1 https://doi.org/10.1093/mnras/stw1526	journal	June 2016
Positron Effects on Polarized Images and Spectra from Jet and Accretion Flow Models of M87* and Sgr A* Emami, Razieh; Anantua, Richard; Chael, Andrew A. The Astrophysical Journal, Vol. 923, Issue 2 https://doi.org/10.3847/1538-4357/ac2950	journal	December 2021
Simulating the emission and outflows from accretion discs Noble, Scott C.; Leung, Po Kin; Gammie, Charles F. Classical and Quantum Gravity, Vol. 24, Issue 12 https://doi.org/10.1088/0264-9381/24/12/S17	journal	June 2007
Orbital motion near Sagittarius A^* Wielgus, M.; Moscibrodzka, M.; Vos, J. Astronomy & Astrophysics, Vol. 665 https://doi.org/10.1051/0004-6361/202244493	journal	September 2022
SciPy 1.0: fundamental algorithms for scientific computing in Python Virtanen, Pauli; Gommers, Ralf; Oliphant, Travis E. Nature Methods https://doi.org/10.1038/s41592-019-0686-2	journal	February 2020
Energy, momentum and mass outflows and feedback from thick accretion discs around rotating black holes Sądowski, Aleksander; Narayan, Ramesh; Penna, Robert Monthly Notices of the Royal Astronomical Society, Vol. 436, Issue 4 https://doi.org/10.1093/mnras/stt1881	journal	November 2013
Closure Traces: Novel Calibration-insensitive Quantities for Radio Astronomy Broderick, Avery E.; Pesce, Dominic W. The Astrophysical Journal, Vol. 904, Issue 2 https://doi.org/10.3847/1538-4357/abbd9d	journal	November 2020
Calibration of mixed-polarization interferometric observations: Tools for the reduction of interferometric data from elements with linear and circular polarization receivers Martí-Vidal, I.; Roy, A.; Conway, J. Astronomy & Astrophysics, Vol. 587 https://doi.org/10.1051/0004-6361/201526063	journal	March 2016
Interferometry and Synthesis in Radio Astronomy Thompson, A. Richard; Moran, James M.; Swenson, George W. Astronomy and Astrophysics Library https://doi.org/10.1007/978-3-319-44431-4	book	January 2017
General relativistic magnetohydrodynamical simulations of the jet in M 87 Mościbrodzka, Monika; Falcke, Heino; Shiokawa, Hotaka Astronomy & Astrophysics, Vol. 586 https://doi.org/10.1051/0004-6361/201526630	journal	January 2016
High-Resolution Linear Polarimetric Imaging for the Event Horizon Telescope Chael, Andrew A.; Johnson, Michael D.; Narayan, Ramesh The Astrophysical Journal, Vol. 829, Issue 1 https://doi.org/10.3847/0004-637X/829/1/11	journal	September 2016
A powerful local shear instability in weakly magnetized disks. I - Linear analysis. II - Nonlinear evolution Balbus, Steven A.; Hawley, John F. The Astrophysical Journal, Vol. 376 https://doi.org/10.1086/170270	journal	July 1991
EHT M87 Polarized Data Collaboration, The Event Horizon Telescope CyVerse Data Commons https://doi.org/10.25739/q46m-m857	dataset	January 2023
POLAMI: Polarimetric Monitoring of Active Galactic Nuclei at Millimetre Wavelengths – II. Widespread circular polarization Thum, Clemens; Agudo, Iván; Molina, Sol N. Monthly Notices of the Royal Astronomical Society, Vol. 473, Issue 2 https://doi.org/10.1093/mnras/stx2436	journal	September 2017
A D-term Modeling Code (DMC) for Simultaneous Calibration and Full-Stokes Imaging of Very Long Baseline Interferometric Data Pesce, Dominic W. The Astronomical Journal, Vol. 161, Issue 4 https://doi.org/10.3847/1538-3881/abe3f8	journal	March 2021
The Event Horizon Telescope Image of the Quasar NRAO 530 Jorstad, Svetlana; Wielgus, Maciek; Lico, Rocco The Astrophysical Journal, Vol. 943, Issue 2 https://doi.org/10.3847/1538-4357/acaea8	journal	February 2023
Electron–positron jets associated with the quasar 3C279 Wardle, J. F. C.; Homan, D. C.; Ojha, R. Nature, Vol. 395, Issue 6701 https://doi.org/10.1038/26675	journal	October 1998
THEMIS: A Parameter Estimation Framework for the Event Horizon Telescope Broderick, Avery E.; Gold, Roman; Karami, Mansour The Astrophysical Journal, Vol. 897, Issue 2 https://doi.org/10.3847/1538-4357/ab91a4	journal	July 2020
Transfer of polarized radiation in self-absorbed synchrotron sources. I - Results for a homogeneous source Jones, T. W.; Odell, S. L. The Astrophysical Journal, Vol. 214 https://doi.org/10.1086/155278	journal	June 1977
The Astropy Project: Building an Open-science Project and Status of the v2.0 Core Package Price-Whelan, A. M.; Sipőcz, B. M.; Günther, H. M. The Astronomical Journal, Vol. 156, Issue 3 https://doi.org/10.3847/1538-3881/aabc4f	journal	August 2018
PATOKA: Simulating Electromagnetic Observables of Black Hole Accretion Wong, George N.; Prather, Ben S.; Dhruv, Vedant The Astrophysical Journal Supplement Series, Vol. 259, Issue 2 https://doi.org/10.3847/1538-4365/ac582e	journal	April 2022
Investigating the Disk–Jet Structure in M87 through Flux Separation in the Linear and Circular Polarization Images Tsunetoe, Yuh; Mineshige, Shin; Kawashima, Tomohisa The Astrophysical Journal, Vol. 931, Issue 1 https://doi.org/10.3847/1538-4357/ac66dd	journal	May 2022
Resolving the Inner Parsec of the Blazar J1924–2914 with the Event Horizon Telescope Issaoun, Sara; Wielgus, Maciek; Jorstad, Svetlana The Astrophysical Journal, Vol. 934, Issue 2 https://doi.org/10.3847/1538-4357/ac7a40	journal	August 2022
Millimeter Light Curves of Sagittarius A* Observed during the 2017 Event Horizon Telescope Campaign Wielgus, Maciek; Marchili, Nicola; Martí-Vidal, Iván The Astrophysical Journal Letters, Vol. 930, Issue 2 https://doi.org/10.3847/2041-8213/ac6428	journal	May 2022
HARM: A Numerical Scheme for General Relativistic Magnetohydrodynamics Gammie, Charles F.; McKinney, Jonathan C.; Toth, Gabor The Astrophysical Journal, Vol. 589, Issue 1 https://doi.org/10.1086/374594	journal	May 2003
GRMHD simulations of magnetized advection-dominated accretion on a non-spinning black hole: role of outflows: Magnetized advection-dominated accretion Narayan, Ramesh; Sądowski, Aleksander; Penna, Robert F. Monthly Notices of the Royal Astronomical Society, Vol. 426, Issue 4 https://doi.org/10.1111/j.1365-2966.2012.22002.x	journal	October 2012
Magnetically Arrested Disk: an Energetically Efficient Accretion Flow: Fig. 1 Narayan, Ramesh; Igumenshchev, Igor V.; Abramowicz, Marek A. Publications of the Astronomical Society of Japan, Vol. 55, Issue 6 https://doi.org/10.1093/pasj/55.6.L69	journal	December 2003
Event Horizon Telescope imaging of the archetypal blazar 3C 279 at an extreme 20 microarcsecond resolution Kim, Jae-Young; Krichbaum, Thomas P.; Broderick, Avery E. Astronomy & Astrophysics, Vol. 640 https://doi.org/10.1051/0004-6361/202037493	journal	August 2020
Faraday Conversion in Turbulent Blazar Jets MacDonald, Nicholas R.; Marscher, Alan P. The Astrophysical Journal, Vol. 862, Issue 1 https://doi.org/10.3847/1538-4357/aacc62	journal	July 2018
Unraveling Twisty Linear Polarization Morphologies in Black Hole Images Emami, Razieh; Ricarte, Angelo; Wong, George N. The Astrophysical Journal, Vol. 950, Issue 1 https://doi.org/10.3847/1538-4357/acc8cd	journal	June 2023
First M87 Event Horizon Telescope Results. II. Array and Instrumentation Akiyama, Kazunori; Alberdi, Antxon; Alef, Walter The Astrophysical Journal, Vol. 875, Issue 1 https://doi.org/10.3847/2041-8213/ab0c96	journal	April 2019
Radio circular polarization produced in helical magnetic fields in eight active galactic nuclei Gabuzda, D. C.; Vitrishchak, V. M.; Mahmud, M. Monthly Notices of the Royal Astronomical Society, Vol. 384, Issue 3 https://doi.org/10.1111/j.1365-2966.2007.12773.x	journal	March 2008
EHT-HOPS Pipeline for Millimeter VLBI Data Reduction Blackburn, Lindy; Chan, Chi-kwan; Crew, Geoffrey B. The Astrophysical Journal, Vol. 882, Issue 1 https://doi.org/10.3847/1538-4357/ab328d	journal	August 2019
Detection of Circular Polarization in the Galactic Center Black Hole Candidate Sagittarius A* Bower, Geoffrey C.; Falcke, Heino; Backer, Donald C. The Astrophysical Journal, Vol. 523, Issue 1 https://doi.org/10.1086/312246	journal	September 1999
ALMA Polarimetry of Sgr A*: Probing the Accretion Flow from the Event Horizon to the Bondi Radius Bower, Geoffrey C.; Broderick, Avery; Dexter, Jason The Astrophysical Journal, Vol. 868, Issue 2 https://doi.org/10.3847/1538-4357/aae983	journal	November 2018
Instability, turbulence, and enhanced transport in accretion disks Balbus, Steven A.; Hawley, John F. Reviews of Modern Physics, Vol. 70, Issue 1 https://doi.org/10.1103/RevModPhys.70.1	journal	January 1998
First Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way Akiyama, Kazunori; Alberdi, Antxon; Alef, Walter The Astrophysical Journal Letters, Vol. 930, Issue 2 https://doi.org/10.3847/2041-8213/ac6674	journal	May 2022
Polarization imaging of M 87 jets by general relativistic radiative transfer calculation based on GRMHD simulations Tsunetoe, Yuh; Mineshige, Shin; Ohsuga, Ken Publications of the Astronomical Society of Japan, Vol. 72, Issue 2 https://doi.org/10.1093/pasj/psaa008	journal	March 2020
Probing Plasma Composition with the Next Generation Event Horizon Telescope (ngEHT) Emami, Razieh; Anantua, Richard; Ricarte, Angelo Galaxies, Vol. 11, Issue 1 https://doi.org/10.3390/galaxies11010011	journal	January 2023
First M87 Event Horizon Telescope Results. V. Physical Origin of the Asymmetric Ring Akiyama, Kazunori; Alberdi, Antxon; Alef, Walter The Astrophysical Journal, Vol. 875, Issue 1 https://doi.org/10.3847/2041-8213/ab0f43	journal	April 2019
Temperature properties in magnetized and radiatively cooled two-temperature accretion flows on to a black hole Dihingia, Indu K.; Mizuno, Yosuke; Fromm, Christian M. Monthly Notices of the Royal Astronomical Society, Vol. 518, Issue 1 https://doi.org/10.1093/mnras/stac3165	journal	November 2022
First M87 Event Horizon Telescope Results. III. Data Processing and Calibration Akiyama, Kazunori; Alberdi, Antxon; Alef, Walter The Astrophysical Journal, Vol. 875, Issue 1 https://doi.org/10.3847/2041-8213/ab0c57	journal	April 2019
The Pilot Way to Grid Resources Using glideinWMS Sfiligoi, Igor; Bradley, Daniel C.; Holzman, Burt 2009 WRI World Congress on Computer Science and Information Engineering https://doi.org/10.1109/CSIE.2009.950	conference	March 2009
Polarization images of accretion flow around supermassive black holes: Imprints of toroidal field structure Tsunetoe, Yuh; Mineshige, Shin; Ohsuga, Ken Publications of the Astronomical Society of Japan, Vol. 73, Issue 4 https://doi.org/10.1093/pasj/psab054	journal	June 2021
rPICARD: A CASA-based calibration pipeline for VLBI data: Calibration and imaging of 7 mm VLBA observations of the AGN jet in M 87 Janssen, M.; Goddi, C.; van Bemmel, I. M. Astronomy & Astrophysics, Vol. 626 https://doi.org/10.1051/0004-6361/201935181	journal	June 2019
Astropy: A community Python package for astronomy Robitaille, Thomas P.; Tollerud, Erik J.; Greenfield, Perry Astronomy & Astrophysics, Vol. 558 https://doi.org/10.1051/0004-6361/201322068	journal	September 2013
General relativistic magnetohydrodynamic simulations of magnetically choked accretion flows around black holes: Magnetically choked accretion flows McKinney, Jonathan C.; Tchekhovskoy, Alexander; Blandford, Roger D. Monthly Notices of the Royal Astronomical Society, Vol. 423, Issue 4 https://doi.org/10.1111/j.1365-2966.2012.21074.x	journal	June 2012
Closure Statistics in Interferometric Data Blackburn, Lindy; Pesce, Dominic W.; Johnson, Michael D. The Astrophysical Journal, Vol. 894, Issue 1 https://doi.org/10.3847/1538-4357/ab8469	journal	May 2020
First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole Akiyama, Kazunori; Alberdi, Antxon; Alef, Walter The Astrophysical Journal, Vol. 875, Issue 1 https://doi.org/10.3847/2041-8213/ab0ec7	journal	April 2019
Relativistic fluid disks in orbit around Kerr black holes Fishbone, L. G.; Moncrief, V. The Astrophysical Journal, Vol. 207 https://doi.org/10.1086/154565	journal	July 1976
Theoretical Models for Producing Circularly Polarized Radiation in Extragalactic Radio Sources Wardle, John F. C.; Homan, Daniel C. Astrophysics and Space Science, Vol. 288, Issue 1/2 https://doi.org/10.1023/B:ASTR.0000005001.80514.0c	journal	January 2003
Hybrid Very Long Baseline Interferometry Imaging and Modeling with themis Broderick, Avery E.; Pesce, Dominic W.; Tiede, Paul The Astrophysical Journal, Vol. 898, Issue 1 https://doi.org/10.3847/1538-4357/ab9c1f	journal	July 2020
Probing plasma physics with spectral index maps of accreting black holes on event horizon scales Ricarte, Angelo; Gammie, Charles; Narayan, Ramesh Monthly Notices of the Royal Astronomical Society, Vol. 519, Issue 3 https://doi.org/10.1093/mnras/stac3796	journal	December 2022
Primitive Variable Solvers for Conservative General Relativistic Magnetohydrodynamics Noble, Scott C.; Gammie, Charles F.; McKinney, Jonathan C. The Astrophysical Journal, Vol. 641, Issue 1 https://doi.org/10.1086/500349	journal	April 2006
Kappa Distributions: Theory and Applications in Space Plasmas Pierrard, V.; Lazar, M. Solar Physics, Vol. 267, Issue 1 https://doi.org/10.1007/s11207-010-9640-2	journal	October 2010
The impact of non-thermal electrons on event horizon scale images and spectra of Sgr A* Mao, S. Alwin; Dexter, Jason; Quataert, Eliot Monthly Notices of the Royal Astronomical Society https://doi.org/10.1093/mnras/stw3324	journal	December 2016
Discriminating Accretion States via Rotational Symmetry in Simulated Polarimetric Images of M87 Palumbo, Daniel C. M.; Wong, George N.; Prather, Ben S. The Astrophysical Journal, Vol. 894, Issue 2 https://doi.org/10.3847/1538-4357/ab86ac	journal	May 2020
Universal interferometric signatures of a black hole’s photon ring Johnson, Michael D.; Lupsasca, Alexandru; Strominger, Andrew Science Advances, Vol. 6, Issue 12 https://doi.org/10.1126/sciadv.aaz1310	journal	March 2020

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