Peering Into the Magnetic Soul of the Milky Way’s Central Black Hole

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Supermassive Black Hole Sagittarius A* in Polarized Light

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The Event Horizon Telescope (EHT) partnership, which produced the first-ever picture of our Milky Way great void launched in 2022, has actually recorded a brand-new view of the enormous item at the center of our Galaxy: how it searches in polarized light. This is the very first time astronomers have actually had the ability to determine polarization, a signature of electromagnetic fields, this near the edge of Sagittarius A *. This image reveals the polarized view of the Milky Way great void. The lines overlaid on this image mark the orientation of polarization, which relates to the electromagnetic field around the shadow of the great void. Credit: EHT Collaboration

The Event Horizon Telescope has actually recorded a picture of the supermassive < period class ="glossaryLink" aria-describedby ="tt" data-cmtooltip ="<div class=glossaryItemTitle>black hole</div><div class=glossaryItemBody>A black hole is a place in space where the gravitational field is so strong that not even light can escape it. Astronomers classify black holes into three categories by size: miniature, stellar, and supermassive black holes. Miniature black holes could have a mass smaller than our Sun and supermassive black holes could have a mass equivalent to billions of our Sun.</div>" data-gt-translate-attributes="[{"attribute":"data-cmtooltip", "format":"html"}]" tabindex ="0" function =(************************************************************************************** )> great voidSagittarius A * in polarized light, exposing strong, arranged electromagnetic fields comparable to those of the M87 great void, which might be a typical function in such cosmic entities and mean a surprise jet inSgr A *.

A brand-new image from theEventHorizonTelescope( EHT) partnership has actually discovered strong and orderly electromagnetic fields spiraling from the edge of the supermassive great voidSagittarius A *(Sgr A * ).Seen in polarized light for the very first time, this brand-new view of the beast prowling at the heart of the< period class ="glossaryLink" aria-describedby ="tt" data-cmtooltip ="<div class=glossaryItemTitle>Milky Way</div><div class=glossaryItemBody>The Milky Way is the galaxy that contains our Solar System and is part of the Local Group of galaxies. It is a barred spiral galaxy that contains an estimated 100-400 billion stars and has a diameter between 150,000 and 200,000 light-years. The name &quot;Milky Way&quot; comes from the appearance of the galaxy from Earth as a faint band of light that stretches across the night sky, resembling spilled milk.</div>" data-gt-translate-attributes="[{"attribute":"data-cmtooltip", "format":"html"}]" tabindex ="0" function ="link" >MilkyWay galaxy has actually exposed an electromagnetic field structure noticeably comparable to that of the great void at the center of the M87 galaxy, recommending that strong electromagnetic fields might prevail to all great voids.This resemblance likewise hints towards a surprise jet inSgr A *.The outcomes were released onMarch27 inThe< period class ="glossaryLink" aria-describedby ="tt" data-cmtooltip ="<div class=glossaryItemTitle>Astrophysical Journal Letters</div><div class=glossaryItemBody>The Astrophysical Journal Letters (ApJL) is a peer-reviewed scientific journal that focuses on the rapid publication of short, significant letters and papers on all aspects of astronomy and astrophysics. It is one of the journals published by the American Astronomical Society (AAS), and is considered one of the most prestigious journals in the field.</div>" data-gt-translate-attributes="[{"attribute":"data-cmtooltip", "format":"html"}]" tabindex ="0" function ="link" >AstrophysicalJournalLetters

(************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************** )2022 researchers revealed the very first picture ofSgr A * at interview all over the world, consisting of at theEuropeanSouthernObservatory( ESO).While theMilkyWay’s supermassive great void, which is approximately27,000 light-years far fromEarth, is more than a thousand times smaller sized and less enormous than M87’s, the first-ever great void imaged, the observations exposed that the 2 appearance extremely comparable.This made researchers question whether the 2 shared typical characteristics beyond their appearances.(**************************************************************************************************************************************************************************************************************************************************************************************************************** )discover, the group chose to study Sgr A * in polarized light. Previous research studies of light around the M87 great void (M87 *) exposed that the electromagnetic fields around it enabled the great void to introduce effective jets of product back into the surrounding environment. Building on this work, the brand-new images have actually exposed that the very same might hold true for Sgr A *.

M87* and Sgr A* Side-by-Side in Polarized Light

Seen here in polarized light, this side-by-side picture of the supermassive great voids M87 * and Sagittarius A * shows to researchers that these monsters have comparable electromagnetic field structures. This is substantial due to the fact that it recommends that the physical procedures that govern how a great void feeds and releases a jet might be universal functions among supermassive great voids.
The scale reveals the evident size on the sky of these images, in systems of micro-arcseconds. A finger held at arm’s length steps 1 degree on the sky; a micro-arcsecond is 3.6 billion times smaller sized than that. In context, the images of these great voids have an evident size comparable to that of a donut on the surface area of the Moon.
Credit: EHT Collaboration

“What we’re seeing now is that there are strong, twisted, and organized magnetic fields near the black hole at the center of the Milky Way galaxy,” stated Sara Issaoun, < period class ="glossaryLink" aria-describedby ="tt" data-cmtooltip ="<div class=glossaryItemTitle>NASA</div><div class=glossaryItemBody>Established in 1958, the National Aeronautics and Space Administration (NASA) is an independent agency of the United States Federal Government that succeeded the National Advisory Committee for Aeronautics (NACA). It is responsible for the civilian space program, as well as aeronautics and aerospace research. Its vision is &quot;To discover and expand knowledge for the benefit of humanity.&quot; Its core values are &quot;safety, integrity, teamwork, excellence, and inclusion.&quot; NASA conducts research, develops technology and launches missions to explore and study Earth, the solar system, and the universe beyond. It also works to advance the state of knowledge in a wide range of scientific fields, including Earth and space science, planetary science, astrophysics, and heliophysics, and it collaborates with private companies and international partners to achieve its goals.</div>" data-gt-translate-attributes="[{"attribute":"data-cmtooltip", "format":"html"}]" tabindex ="0" function ="link" > NASAHubbleFellowshipProgramEinsteinFellow at theCenter forAstrophysics |Harvard &(************************************************************************************************************************************************************************************************************************************************************************************************************************************************************** )United States, and co-lead of the task.“Along with Sgr A* having a strikingly similar polarization structure to that seen in the much larger and more powerful M87* black hole, we’ve learned that strong and ordered magnetic fields are critical to how black holes interact with the gas and matter around them.”

First Image of Our Black Hole Sagittarius A*

This is the very first picture ofSgr A *, the supermassive great void at the center of our galaxy.It’s the very first direct visual proof of the existence of this great void.It was recorded by theEventHorizonTelescope( EHT), a variety that connected together 8 existing radio observatories throughout the world to form a single (********************************************************** )virtual telescope.The telescope is called after the occasion horizon, the limit of the great void beyond which no light can get away.Credit: EHTCollaboration

Light is an oscillating, or moving, electro-magnetic wave that permits us to see items.Sometimes, light oscillates in a favored orientation, and we call it‘polarized’Although polarized light surrounds us, to human eyes it is equivalent from‘normal’ light.In the< period class ="glossaryLink" aria-describedby ="tt" data-cmtooltip ="<div class=glossaryItemTitle>plasma</div><div class=glossaryItemBody>Plasma is one of the four fundamental states of matter, along with solid, liquid, and gas. It is an ionized gas consisting of positive ions and free electrons. It was first described by chemist Irving Langmuir in the 1920s.</div>" data-gt-translate-attributes="[{"attribute":"data-cmtooltip", "format":"html"}] "tabindex =(************************************************************************************* )function ="link" > plasma around these great voids, particles whirling around electromagnetic field lines impart a polarization pattern perpendicular to the field.This permits astronomers to see in progressively vibrant information what’s taking place in great void areas and map their electromagnetic field lines.

Supermassive Black Hole M87 in Polarized Light

This image reveals the polarized view of the great void in M87The lines mark the orientation of polarization, which relates to the electromagnetic field around the shadow of the great void.Credit: EHTCollaboration

“By imaging polarized light from hot glowing gas near black holes, we are directly inferring the structure and strength of the magnetic fields that thread the flow of gas and matter that the black hole feeds on and ejects,” statedHarvardBlackHoleInitiativeFellow and task co-leadAngeloRicarte“Polarized light teaches us a lot more about the astrophysics, the properties of the gas, and mechanisms that take place as a black hole feeds.”

M87* and Sagittarius A* Black Hole Size Comparison

Size contrast of the 2 great voids imaged by theEventHorizonTelescope( EHT)Collaboration: M(********************************************************************************************************************************************************************************************************************* )*, at the heart of the galaxyMessier87, andSagittarius A *(Sgr A *), at the center of theMilkyWay(************************************************************************************************************************************************************************************************************************************************************************************************************************* )image reveals the scale of(******************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************** )A * in contrast with both M87 * and other aspects of the Solar System such as the orbits of Pluto andMercury Also showed is the Sun’s size and the existing place of the Voyager 1 area probe, the outermost spacecraft fromEarth Credit: EHT partnership (recommendation: Lia Medeiros, xkcd)

But imaging great voids in polarized light isn’t as simple as placing on a set of polarized sunglasses, and this is especially real of Sgr A *, which is altering so quick that it does not sit still for images. Imaging the supermassive great void needs advanced tools above and beyond those formerly utilized for recording M87 *, a much steadier target. EHT Project Scientist Geoffrey Bower from the Institute of Astronomy and Astrophysics, Academia Sinica, Taipei stated, “Because Sgr A* moves around while we try to take its picture, it was difficult to construct even the unpolarized image,” including that the very first image was approximately several images owing to Sgr A *’s motion. “We were relieved that polarized imaging was even possible. Some models were far too scrambled and turbulent to construct a polarized image, but Nature was not so cruel.”

This zoom video takes you to Sagittarius A *, the supermassive great void at the center of our galaxy, seen now for the very first time in polarized light. The video starts at the Atacama Large Millimeter/ submillimeter Array (< period class ="glossaryLink" aria-describedby ="tt" data-cmtooltip ="<div class=glossaryItemTitle>ALMA</div><div class=glossaryItemBody>The Atacama Large Millimeter/submillimeter Array (ALMA) is the largest ground-based facility for observations in the millimeter/submillimeter regime in the world. ALMA comprises 66 high-precision dish antennas of measuring either 12 meters across or 7 meters across and spread over distances of up to 16 kilometers. It is an international partnership between Europe, the United States, Japan, and the Republic of Chile.</div>" data-gt-translate-attributes="[{"attribute":"data-cmtooltip", "format":"html"}]" tabindex ="0" function ="link" > ALMA), a telescope in which< period class ="glossaryLink" aria-describedby ="tt" data-cmtooltip ="<div class=glossaryItemTitle>ESO</div><div class=glossaryItemBody>Created in 1962, the European Southern Observatory (ESO), is a 16-nation intergovernmental research organization for ground-based astronomy. Its formal name is the European Organization for Astronomical Research in the Southern Hemisphere.</div>" data-gt-translate-attributes="[{"attribute":"data-cmtooltip", "format":"html"}]" tabindex ="0" function ="link" > ESO is a partner which belongs to theEventHorizonTelescope( EHT).As we zoom into the heart of our galaxy, we change from noticeable to infrared light to peer through the thick clouds of dust in this area.We see some stars orbiting extremely nearSgr A *, observed with ESO’s< period class ="glossaryLink" aria-describedby ="tt" data-cmtooltip ="<div class=glossaryItemTitle>Very Large Telescope</div><div class=glossaryItemBody>The Very Large Telescope array (VLT) is a visible and infrared wavelength telescope facility operated by the European Southern Observatory on Cerro Paranal in the Atacama Desert of northern Chile. It is the world&#039;s most advanced optical instrument, consisting of four Unit Telescopes with main mirrors of 8.2m diameter and four movable 1.8m diameter Auxiliary Telescopes.</div>" data-gt-translate-attributes="[{"attribute":"data-cmtooltip", "format":"html"}]" tabindex ="0" function ="link" >VeryLargeTelescopeInterferometer(********************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************** )we come toSgr A *.The very first picture of this great void was launched in2022 The swirling lines overlaid in this brand-new image mark the orientation of polarization, which is connected to the shape of the electromagnetic field around the great void.

MariafeliciaDeLaurentis, EHTDeputyProjectScientist and teacher at theUniversity ofNaplesFederico II,(************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************ )stated,“With a sample of two black holes — with very different masses and very different host galaxies — it’s important to determine what they agree and disagree on. Since both are pointing us toward strong magnetic fields, it suggests that this may be a universal and perhaps fundamental feature of these kinds of systems. One of the similarities between these two black holes might be a jet, but while we’ve imaged a very obvious one in M87*, we’ve yet to find one in Sgr A*.”

EHT Array Telescope Locations

A worldwide map revealing the radio observatories that form theEventHorizonTelescope( EHT) network utilized to image theMilkyWay’s main great void,Sagittarius A *.Credit: ESO/M.Kornmesser

To observeSgr A *, the partnership connected 8 telescopes all over the world to develop a virtualEarth- sized telescope, the EHT.TheAtacamaLargeMillimeter/ submillimeterArray( ALMA), in which ESO is a partner, and the ESO-hostedAtacamaPathfinderExperiment( PINNACLE), both in northernChile, belonged to the network that made the observations, carried out in2017

“As the largest and most powerful of the telescopes in the EHT, ALMA played a key role in making this image possible,” states ESO’sMar ía DíazTrigo,European ALMAProgrammeScientist“ALMA is now planning an ‘extreme makeover’, the Wideband Sensitivity Upgrade, which will make ALMA even more sensitive and keep it a fundamental player in future EHT observations of Sgr A* and other black holes.”

Milky Way Wide Field View

Wide- field view of the center of theMilkyWayThis noticeable light wide-field view reveals the abundant star clouds in the constellation ofSagittarius( theArcher) in the instructions of the center of ourMilkyWay galaxy.The whole image is filled with large varieties of stars– however even more stay covert behind clouds of dust and are just exposed in infrared images. This view was developed from pictures in red and blue light and forming part of the Digitized Sky Survey 2. The field of vision is around 3.5 degrees x 3.6 degrees. Credit: ESO and Digitized Sky Survey 2. Acknowledgment: Davide De Martin and S. Guisard (www.eso.org/~sguisard)

The EHT has actually carried out numerous observations given that 2017 and is set up to observe Sgr A * once again in April2024 Each year, the images enhance as the EHT integrates brand-new telescopes, bigger bandwidth, and brand-new observing frequencies. Planned growths for the next years will allow high-fidelity films of Sgr A *, might expose a surprise jet, and might permit astronomers to observe comparable polarization functions in other great voids. Meanwhile, extending the EHT into area would offer sharper pictures of great voids than ever previously.

This research study existed in 2 documents by the EHT Collaboration released today in The Astrophysical Journal Letters: “First Sagittarius A* Event Horizon Telescope Results. VII. Polarization of the Ring” and “First Sagittarius A* Event Horizon Telescope Results. VIII.: Physical interpretation of the polarized ring.”

Sagittarius Constellation

This chart reveals the place of the field of vision within which Sagittarius A * lives– the great void is marked with a red circle within the constellation of Sagittarius (The Archer). This map reveals the majority of the stars noticeable to the unaided eye under great conditions. Credit: ESO, IAU and Sky & & Telescope

References:

“First Sagittarius A* Event Horizon Telescope Results. VII. Polarization of the Ring” by Kazunori Akiyama, Antxon Alberdi, Walter Alef, Juan Carlos Algaba, Richard Anantua, Keiichi Asada, Rebecca Azulay, Uwe Bach, Anne-Kathrin Baczko, David Ball, Mislav Balokovic, Bidisha Bandyopadhyay, John Barrett, Michi Baub öck, 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, Dominic O. Chang, 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, Rohan Dahale, Jordy Davelaar, Mariafelicia De Laurentis, Roger Deane, Jessica Dempsey, Gregory Desvignes, Jason Dexter, Vedant Dhruv, Indu K. Dihingia, Sheperd S. Doeleman, Sean Taylor Dougal, Sergio A. Dzib, Ralph P. Eatough, Razieh Emami, Heino Falcke, Joseph Farah, Vincent L. Fish, Edward Fomalont, H. Alyson Ford, Marianna Foschi, Raquel Fraga-Encinas, William T. Freeman, Per Friberg, Christian M. Fromm, Antonio Fuentes, Peter Galison, Charles F. Gammie, Roberto Garc ía, Olivier Gentaz, Boris Georgiev, Ciriaco Goddi, Roman Gold, Arturo I. Gómez-Ruiz, Jos é 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 Jim énez-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, Joana A. 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, Amy E. Lowitz, Ru-Sen Lu, Nicholas R. MacDo nald, Jirong Mao,, Nicola Marchili, Sera Markoff, Daniel P. Marrone, Alan P. Marscher, Iv án Mart í-Vidal, Satoki Matsushita, Lynn D. Matthews, Lia Medeiros, Karl M. Menten, Daniel Michalik, Izumi Mizuno, Yosuke Mizuno, James M. Moran, Kotaro Moriyama, Monika Moscibrodzka, Wanga Mulaudzi, Cornelia Müller, Hendrik Müller, Alejandro Mus, Gibwa Musoke, Ioannis Myserlis, Andrew Nadolski, Hiroshi Nagai, Neil M. Nagar, Masanori Nakamura, Gopal Narayanan, Iniyan Natarajan, Antonios Nathanail, Santiago Navarro Fuentes, Joey Neilsen, Roberto Neri, Chunchong Ni, Aristeidis Noutsos, Michael A. Nowak, Junghwan Oh, Hiroki Okino, Hèctor Olivares, Gisela N. Ortiz-Le ón, Tomoaki Oyama, Feryal Özel, Daniel C. M. Palumbo, Georgios Filippos Paraschos, Jongho Park, Harriet Parsons, Nimesh Patel, Ue-Li Pen, Dominic W. Pesce, Vincent Pi étu, Richard Plambeck, Aleksandar Po pStefanija, 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, Cristina Romero-Ca ñizales, Eduardo Ros, Arash Roshanineshat, Helge Rottmann, Alan L. Roy, Ignacio Ruiz, Chet Ruszczyk, Kazi L. J. Rygl, Salvador Sánchez, David Sánchez-Arg üelles, 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, Le ón David Sosapanta Salas, Kamal Souccar, Joshua S. Stanway, He Sun, Fumie Tazaki, Alexandra J. Tetarenko, Paul Tiede, Remo P. J. Tilanus, Michael Titus, Pablo Torne, Teresa Toscano, 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, Jasmin E. Washington, Jonathan Weintroub, Robert Wharton, Maciek Wielgus, Kaj Wiik, Gunther Witzel, Michael F. Wondrak, George N. Wong, Qingwen Wu, Nitika Yadlapalli, Paul Yamaguchi, Aristomenis Yfantis, Doosoo Yoon, Andr è Young, Ken Young, Ziri Younsi, Wei Yu, Feng Yuan, Ye-Fei Yuan, J. Anton Zensus, Shuo Zhang, Guang-Yao Zhao and Shan-Shan Zhao, 27 March 2024, The Astrophysical Journal Letters
DOI: 10.3847/2041-8213/ ad2df0

“First Sagittarius A* Event Horizon Telescope Results. VIII. Physical Interpretation of the Polarized Ring” by Kazunori Akiyama, Antxon Alberdi, Walter Alef, Juan Carlos Algaba, Richard Anantua, Keiichi Asada, Rebecca Azulay, Uwe Bach, Anne-Kathrin Baczko, David Ball, Mislav Balokovi ć, Bidisha Bandyopadhyay, John Barrett, Michi Baub öck, 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, Dominic O. Chang, 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, Rohan Dahale, Jordy Davelaar, Mariafelicia De Laurentis, Roger Deane, Jessica Dempsey, Gregory Desvignes, Jason Dexter, Vedant Dhruv, Indu K. Dihingia, Sheperd S. Doeleman, Sean Dougall, Sergio A. Dzib, Ralph P. Eatough, Razieh Emami, Heino Falcke, Joseph Farah, Vincent L. Fish, Edward Fomalont, H. Alyson Ford, Marianna Foschi, Raquel Fraga-Encinas, William T. Freeman, Per Friberg, Christian M. Fromm, Antonio Fuentes, Peter Galison, Charles F. Gammie, Roberto Garc ía, Olivier Gentaz, Boris Georgiev, Ciriaco Goddi, Roman Gold, Arturo I. Gómez-Ruiz, Jos é 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 Huan, 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 Jim énez-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, Joana A. 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, Amy E. Lowitz, Ru-Sen Lu, Nicholas R. MacDo nald, Jirong Mao, Nicola Marchili, Sera Markoff, Daniel P. Marrone, Alan P. Marscher, Iv án Mart í-Vidal, Satoki Matsushita, Lynn D. Matthews, Lia Medeiros, Karl M. Menten, Daniel Michalik, Izumi Mizuno, Yosuke Mizuno, James M. Moran, Kotaro Moriyama, Monika Moscibrodzka, Wanga Mulaudzi, Cornelia Müller, Hendrik Müller, Alejandro Mus, Gibwa Musoke, Ioannis Myserlis, Andrew Nadolski, Hiroshi Nagai, Neil M. Nagar, Masanori Nakamura, 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-Le ón, Tomoaki Oyama, Feryal Özel, Daniel C. M. Palumbo, Georgios Filippos Paraschos, Jongho Park, Harriet Parsons, Nimesh Patel, Ue-Li Pen, Dominic W. Pesce, Vincent Pi étu, Richard Plambeck, Aleksandar Po pStefanija, 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, Cristina Romero-Ca ñizales, Eduardo Ros, Arash Roshanineshat, Helge Rottmann, Alan L. Roy, Ignacio Ruiz, Chet Ruszczyk, Kazi L. J. Rygl, Salvador Sánchez, David Sánchez-Arg üelles, 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, Le ón David Sosapanta Salas, Kamal Souccar, Joshua S. Stanway, He Sun, Fumie Tazaki, Alexandra J. Tetarenko, Paul Tiede, Remo P. J. Tilanus, Michael Titus, Pablo Torne, Teresa Toscano, 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, Jasmin E. Washington, Jonathan Weintroub, Robert Wharton, Maciek Wielgus, Kaj Wiik, Gunther Witzel, Michael F. Wondrak, George N. Wong, Qingwen Wu, Nitika Yadlapalli, Paul Yamaguchi, Aristomenis Yfantis, Doosoo Yoon, Andr é Young, Ken Young, Ziri Younsi, Wei Yu, Feng Yuan, Ye-Fei Yuan, J. Anton Zensus, Shuo Zhang, Guang-Yao Zhao, Shan-Shan Zhao and Mahdi Najafi-Ziyazi, 27 March 2024, The Astrophysical Journal Letters
DOI: 10.3847/2041-8213/ ad2df1

The EHT partnership includes more than 300 scientists from Africa, Asia, Europe, and North and SouthAmerica The worldwide partnership is working to record the most comprehensive great void images ever acquired by developing a virtual Earth- sized telescope. Supported by substantial worldwide financial investment, the EHT links existing telescopes utilizing unique systems– developing an essentially brand-new instrument with the greatest angular dealing with power that has actually yet been accomplished.

The private telescopes associated with the EHT in April 2017, when the observations were carried out, were: the Atacama Large Millimeter/ submillimeter Array (ALMA), the Atacama Pathfinder EXperiment (PINNACLE), the Institut de Radioastronomie Millimetrique (IRAM) 30- meter Telescope, the James Clerk Maxwell Telescope (JCMT), the Large Millimeter Telescope Alfonso Serrano (LMT), the Submillimeter Array (SMA), the UArizona Submillimeter Telescope (SMT), and the South Pole Telescope (SPT). Since then, the EHT has actually included the Greenland Telescope (GLT), the IRAM NOrthern Extended Millimeter Array (NOEMA) and the UArizona 12- meter Telescope on Kitt Peak to its network.

The EHT consortium includes 13 stakeholder institutes: the Academia Sinica Institute of Astronomy and Astrophysics, the University of Arizona, the < period class ="glossaryLink" aria-describedby ="tt" data-cmtooltip ="<div class=glossaryItemTitle>University of Chicago</div><div class=glossaryItemBody>Founded in 1890, the University of Chicago (UChicago, U of C, or Chicago) is a private research university in Chicago, Illinois. Located on a 217-acre campus in Chicago&#039;s Hyde Park neighborhood, near Lake Michigan, the school holds top-ten positions in various national and international rankings. UChicago is also well known for its professional schools: Pritzker School of Medicine, Booth School of Business, Law School, School of Social Service Administration, Harris School of Public Policy Studies, Divinity School and the Graham School of Continuing Liberal and Professional Studies, and Pritzker School of Molecular Engineering.</div>" data-gt-translate-attributes="[{"attribute":"data-cmtooltip", "format":"html"}]" tabindex ="0" function ="link" >University ofChicago, theEastAsianObservatory,Goethe-UniversitaetFrankfurt,Institut deRadioastronomieMillim étrique,LargeMillimeterTelescope,MaxPlanckInstitute forRadioAstronomy,< period class ="glossaryLink" aria-describedby ="tt" data-cmtooltip ="<div class=glossaryItemTitle>MIT</div><div class=glossaryItemBody>MIT is an acronym for the Massachusetts Institute of Technology. It is a prestigious private research university in Cambridge, Massachusetts that was founded in 1861. It is organized into five Schools: architecture and planning; engineering; humanities, arts, and social sciences; management; and science. MIT&#039;s impact includes many scientific breakthroughs and technological advances. Their stated goal is to make a better world through education, research, and innovation.</div>" data-gt-translate-attributes="[{"attribute":"data-cmtooltip", "format":"html"}]" tabindex ="0" function ="link" > MITHaystackObservatory,NationalAstronomicalObservatory ofJapan,PerimeterInstitute forTheoreticalPhysics,RadboudUniversity and theSmithsonianAstrophysicalObservatory