Enregistré dans:
| Auteurs principaux: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Publié: |
2025
|
| Sujets: | |
| Accès en ligne: | https://arxiv.org/abs/2501.08685 |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866912189702471680 |
|---|---|
| author | Baczko, Anne-Kathrin Kadler, Matthias Ros, Eduardo Fromm, Christian M. Wielgus, Maciek Perucho, Manel Krichbaum, Thomas P. Baloković, Mislav Blackburn, Lindy Chan, Chi-kwan Issaoun, Sara Janssen, Michael Ricci, Luca Akiyama, Kazunori Albentosa-Ruíz, Ezequiel Alberdi, Antxon Alef, Walter Algaba, Juan Carlos Anantua, Richard Asada, Keiichi Azulay, Rebecca Bach, Uwe Ball, David Bandyopadhyay, Bidisha Barrett, John Bauböck, Michi Benson, Bradford A. Bintley, Dan 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 Chang, Dominic O. Chatterjee, Koushik Chatterjee, Shami Chen, Ming-Tang Chen, Yongjun 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, Yuzhu Dahale, Rohan Davelaar, Jordy De Laurentis, Mariafelicia Deane, Roger Dempsey, Jessica Desvignes, Gregory Dexter, Jason Dhruv, Vedant Dihingia, Indu K. Doeleman, Sheperd S. Dougall, Sean Taylor Dzib, Sergio A. Eatough, Ralph P. Emami, Razieh Falcke, Heino Farah, Joseph Fish, Vincent L. Fomalont, Edward Ford, H. Alyson Foschi, Marianna Fraga-Encinas, Raquel Freeman, William T. Friberg, Per 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, Minfeng Gurwell, Mark Hada, Kazuhiro Haggard, Daryl Haworth, Kari Hecht, Michael H. Hesper, Ronald Heumann, Dirk Ho, Luis C. Ho, Paul Honma, Mareki Huang, Chih-Wei L. Huang, Lei Hughes, David H. Impellizzeri, C. M. Violette Inoue, Makoto James, David J. Jannuzi, Buell T. Jeter, Britton Jiang, Wu 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 Koyama, Shoko Kramer, Carsten Kramer, Joana A. Kramer, Michael Kuo, Cheng-Yu La Bella, Noemi Lauer, Tod R. Lee, Daeyoung Lee, Sang-Sung Leung, Po Kin Levis, Aviad Li, Zhiyuan Lico, Rocco Lindahl, Greg Lindqvist, Michael Lisakov, Mikhail Liu, Jun Liu, Kuo Liuzzo, Elisabetta Lo, Wen-Ping Lobanov, Andrei P. Loinard, Laurent Lonsdale, Colin J. Lowitz, Amy E. Lu, Ru-Sen MacDonald, Nicholas R. Mao, Jirong 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. Nair, Dhanya G. Nakamura, Masanori Narayanan, Gopal Natarajan, Iniyan Nathanail, Antonios Fuentes, Santiago Navarro Neilsen, Joey Neri, Roberto Ni, Chunchong Noutsos, Aristeidis Nowak, Michael A. Oh, Junghwan Okino, Hiroki Sánchez, Héctor Raúl Olivares Ortiz-León, Gisela N. Oyama, Tomoaki Özel, Feryal Palumbo, Daniel C. 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. Principe, Giacomo Psaltis, Dimitrios Pu, Hung-Yi Ramakrishnan, Venkatessh Rao, Ramprasad Rawlings, Mark G. Raymond, Alexander W. Ricarte, Angelo Ripperda, Bart Roelofs, Freek Rogers, Alan Romero-Cañizales, Cristina Roshanineshat, Arash Rottmann, Helge Roy, Alan L. Ruiz, Ignacio Ruszczyk, Chet Rygl, Kazi L. 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, Zhiqiang Small, Des Sohn, Bong Won SooHoo, Jason Salas, León David Sosapanta Souccar, Kamal Stanway, Joshua S. Sun, He Tazaki, Fumie Tetarenko, Alexandra J. Tiede, Paul Tilanus, Remo P. 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 Wiik, Kaj Witzel, Gunther Wondrak, Michael F. Wong, George N. Wu, Qingwen Yadlapalli, Nitika Yamaguchi, Paul Yfantis, Aristomenis Yoon, Doosoo Young, André Young, Ken Younsi, Ziri Yu, Wei Yuan, Feng Yuan, Ye-Fei Zensus, J. Anton Zhang, Shuo Zhao, Guang-Yao |
| author_facet | Baczko, Anne-Kathrin Kadler, Matthias Ros, Eduardo Fromm, Christian M. Wielgus, Maciek Perucho, Manel Krichbaum, Thomas P. Baloković, Mislav Blackburn, Lindy Chan, Chi-kwan Issaoun, Sara Janssen, Michael Ricci, Luca Akiyama, Kazunori Albentosa-Ruíz, Ezequiel Alberdi, Antxon Alef, Walter Algaba, Juan Carlos Anantua, Richard Asada, Keiichi Azulay, Rebecca Bach, Uwe Ball, David Bandyopadhyay, Bidisha Barrett, John Bauböck, Michi Benson, Bradford A. Bintley, Dan 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 Chang, Dominic O. Chatterjee, Koushik Chatterjee, Shami Chen, Ming-Tang Chen, Yongjun 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, Yuzhu Dahale, Rohan Davelaar, Jordy De Laurentis, Mariafelicia Deane, Roger Dempsey, Jessica Desvignes, Gregory Dexter, Jason Dhruv, Vedant Dihingia, Indu K. Doeleman, Sheperd S. Dougall, Sean Taylor Dzib, Sergio A. Eatough, Ralph P. Emami, Razieh Falcke, Heino Farah, Joseph Fish, Vincent L. Fomalont, Edward Ford, H. Alyson Foschi, Marianna Fraga-Encinas, Raquel Freeman, William T. Friberg, Per 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, Minfeng Gurwell, Mark Hada, Kazuhiro Haggard, Daryl Haworth, Kari Hecht, Michael H. Hesper, Ronald Heumann, Dirk Ho, Luis C. Ho, Paul Honma, Mareki Huang, Chih-Wei L. Huang, Lei Hughes, David H. Impellizzeri, C. M. Violette Inoue, Makoto James, David J. Jannuzi, Buell T. Jeter, Britton Jiang, Wu 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 Koyama, Shoko Kramer, Carsten Kramer, Joana A. Kramer, Michael Kuo, Cheng-Yu La Bella, Noemi Lauer, Tod R. Lee, Daeyoung Lee, Sang-Sung Leung, Po Kin Levis, Aviad Li, Zhiyuan Lico, Rocco Lindahl, Greg Lindqvist, Michael Lisakov, Mikhail Liu, Jun Liu, Kuo Liuzzo, Elisabetta Lo, Wen-Ping Lobanov, Andrei P. Loinard, Laurent Lonsdale, Colin J. Lowitz, Amy E. Lu, Ru-Sen MacDonald, Nicholas R. Mao, Jirong 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. Nair, Dhanya G. Nakamura, Masanori Narayanan, Gopal Natarajan, Iniyan Nathanail, Antonios Fuentes, Santiago Navarro Neilsen, Joey Neri, Roberto Ni, Chunchong Noutsos, Aristeidis Nowak, Michael A. Oh, Junghwan Okino, Hiroki Sánchez, Héctor Raúl Olivares Ortiz-León, Gisela N. Oyama, Tomoaki Özel, Feryal Palumbo, Daniel C. 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. Principe, Giacomo Psaltis, Dimitrios Pu, Hung-Yi Ramakrishnan, Venkatessh Rao, Ramprasad Rawlings, Mark G. Raymond, Alexander W. Ricarte, Angelo Ripperda, Bart Roelofs, Freek Rogers, Alan Romero-Cañizales, Cristina Roshanineshat, Arash Rottmann, Helge Roy, Alan L. Ruiz, Ignacio Ruszczyk, Chet Rygl, Kazi L. 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, Zhiqiang Small, Des Sohn, Bong Won SooHoo, Jason Salas, León David Sosapanta Souccar, Kamal Stanway, Joshua S. Sun, He Tazaki, Fumie Tetarenko, Alexandra J. Tiede, Paul Tilanus, Remo P. 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 Wiik, Kaj Witzel, Gunther Wondrak, Michael F. Wong, George N. Wu, Qingwen Yadlapalli, Nitika Yamaguchi, Paul Yfantis, Aristomenis Yoon, Doosoo Young, André Young, Ken Younsi, Ziri Yu, Wei Yuan, Feng Yuan, Ye-Fei Zensus, J. Anton Zhang, Shuo Zhao, Guang-Yao |
| contents | Many active galaxies harbor powerful relativistic jets, however, the detailed mechanisms of their formation and acceleration remain poorly understood. To investigate the area of jet acceleration and collimation with the highest available angular resolution, we study the innermost region of the bipolar jet in the nearby low-ionization nuclear emission-line region (LINER) galaxy NGC 1052. We combined observations of NGC 1052 taken with VLBA, GMVA, and EHT over one week in the spring of 2017. For the first time, NGC 1052 was detected with the EHT, providing a size of the central region in-between both jet bases of 250 RS (Schwarzschild radii) perpendicular to the jet axes. This size estimate supports previous studies of the jets expansion profile which suggest two breaks of the profile at around 300 RS and 10000 RS distances to the core. Furthermore, we estimated the magnetic field to be 1.25 Gauss at a distance of 22 μas from the central engine by fitting a synchrotron-self absorption spectrum to the innermost emission feature, which shows a spectral turn-over at about 130 GHz. Assuming a purely poloidal magnetic field, this implies an upper limit on the magnetic field strength at the event horizon of 26000 Gauss, which is consistent with previous measurements. The complex, low-brightness, double-sided jet structure in NGC 1052 makes it a challenge to detect the source at millimeter (mm) wavelengths. However, our first EHT observations have demonstrated that detection is possible up to at least 230 GHz. This study offers a glimpse through the dense surrounding torus and into the innermost central region, where the jets are formed. This has enabled us to finally resolve this region and provide improved constraints on its expansion and magnetic field strength. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_08685 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | The putative center in NGC 1052 Baczko, Anne-Kathrin Kadler, Matthias Ros, Eduardo Fromm, Christian M. Wielgus, Maciek Perucho, Manel Krichbaum, Thomas P. Baloković, Mislav Blackburn, Lindy Chan, Chi-kwan Issaoun, Sara Janssen, Michael Ricci, Luca Akiyama, Kazunori Albentosa-Ruíz, Ezequiel Alberdi, Antxon Alef, Walter Algaba, Juan Carlos Anantua, Richard Asada, Keiichi Azulay, Rebecca Bach, Uwe Ball, David Bandyopadhyay, Bidisha Barrett, John Bauböck, Michi Benson, Bradford A. Bintley, Dan 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 Chang, Dominic O. Chatterjee, Koushik Chatterjee, Shami Chen, Ming-Tang Chen, Yongjun 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, Yuzhu Dahale, Rohan Davelaar, Jordy De Laurentis, Mariafelicia Deane, Roger Dempsey, Jessica Desvignes, Gregory Dexter, Jason Dhruv, Vedant Dihingia, Indu K. Doeleman, Sheperd S. Dougall, Sean Taylor Dzib, Sergio A. Eatough, Ralph P. Emami, Razieh Falcke, Heino Farah, Joseph Fish, Vincent L. Fomalont, Edward Ford, H. Alyson Foschi, Marianna Fraga-Encinas, Raquel Freeman, William T. Friberg, Per 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, Minfeng Gurwell, Mark Hada, Kazuhiro Haggard, Daryl Haworth, Kari Hecht, Michael H. Hesper, Ronald Heumann, Dirk Ho, Luis C. Ho, Paul Honma, Mareki Huang, Chih-Wei L. Huang, Lei Hughes, David H. Impellizzeri, C. M. Violette Inoue, Makoto James, David J. Jannuzi, Buell T. Jeter, Britton Jiang, Wu 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 Koyama, Shoko Kramer, Carsten Kramer, Joana A. Kramer, Michael Kuo, Cheng-Yu La Bella, Noemi Lauer, Tod R. Lee, Daeyoung Lee, Sang-Sung Leung, Po Kin Levis, Aviad Li, Zhiyuan Lico, Rocco Lindahl, Greg Lindqvist, Michael Lisakov, Mikhail Liu, Jun Liu, Kuo Liuzzo, Elisabetta Lo, Wen-Ping Lobanov, Andrei P. Loinard, Laurent Lonsdale, Colin J. Lowitz, Amy E. Lu, Ru-Sen MacDonald, Nicholas R. Mao, Jirong 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. Nair, Dhanya G. Nakamura, Masanori Narayanan, Gopal Natarajan, Iniyan Nathanail, Antonios Fuentes, Santiago Navarro Neilsen, Joey Neri, Roberto Ni, Chunchong Noutsos, Aristeidis Nowak, Michael A. Oh, Junghwan Okino, Hiroki Sánchez, Héctor Raúl Olivares Ortiz-León, Gisela N. Oyama, Tomoaki Özel, Feryal Palumbo, Daniel C. 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. Principe, Giacomo Psaltis, Dimitrios Pu, Hung-Yi Ramakrishnan, Venkatessh Rao, Ramprasad Rawlings, Mark G. Raymond, Alexander W. Ricarte, Angelo Ripperda, Bart Roelofs, Freek Rogers, Alan Romero-Cañizales, Cristina Roshanineshat, Arash Rottmann, Helge Roy, Alan L. Ruiz, Ignacio Ruszczyk, Chet Rygl, Kazi L. 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, Zhiqiang Small, Des Sohn, Bong Won SooHoo, Jason Salas, León David Sosapanta Souccar, Kamal Stanway, Joshua S. Sun, He Tazaki, Fumie Tetarenko, Alexandra J. Tiede, Paul Tilanus, Remo P. 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 Wiik, Kaj Witzel, Gunther Wondrak, Michael F. Wong, George N. Wu, Qingwen Yadlapalli, Nitika Yamaguchi, Paul Yfantis, Aristomenis Yoon, Doosoo Young, André Young, Ken Younsi, Ziri Yu, Wei Yuan, Feng Yuan, Ye-Fei Zensus, J. Anton Zhang, Shuo Zhao, Guang-Yao High Energy Astrophysical Phenomena Astrophysics of Galaxies Many active galaxies harbor powerful relativistic jets, however, the detailed mechanisms of their formation and acceleration remain poorly understood. To investigate the area of jet acceleration and collimation with the highest available angular resolution, we study the innermost region of the bipolar jet in the nearby low-ionization nuclear emission-line region (LINER) galaxy NGC 1052. We combined observations of NGC 1052 taken with VLBA, GMVA, and EHT over one week in the spring of 2017. For the first time, NGC 1052 was detected with the EHT, providing a size of the central region in-between both jet bases of 250 RS (Schwarzschild radii) perpendicular to the jet axes. This size estimate supports previous studies of the jets expansion profile which suggest two breaks of the profile at around 300 RS and 10000 RS distances to the core. Furthermore, we estimated the magnetic field to be 1.25 Gauss at a distance of 22 μas from the central engine by fitting a synchrotron-self absorption spectrum to the innermost emission feature, which shows a spectral turn-over at about 130 GHz. Assuming a purely poloidal magnetic field, this implies an upper limit on the magnetic field strength at the event horizon of 26000 Gauss, which is consistent with previous measurements. The complex, low-brightness, double-sided jet structure in NGC 1052 makes it a challenge to detect the source at millimeter (mm) wavelengths. However, our first EHT observations have demonstrated that detection is possible up to at least 230 GHz. This study offers a glimpse through the dense surrounding torus and into the innermost central region, where the jets are formed. This has enabled us to finally resolve this region and provide improved constraints on its expansion and magnetic field strength. |
| title | The putative center in NGC 1052 |
| topic | High Energy Astrophysical Phenomena Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2501.08685 |