Standard

The Event Horizon Telescope Image of the Quasar NRAO 530. / Jorstad, Svetlana; Wielgus, Maciek; Lico, Rocco; Issaoun, Sara; Broderick, Avery E.; Pesce, Dominic W.; Liu, Jun; Zhao, Guang-yao; Krichbaum, Thomas P.; Blackburn, Lindy; Chan, Chi-kwan; Janssen, Michael; Ramakrishnan, Venkatessh; Akiyama, Kazunori; Alberdi, Antxon; Algaba, Juan Carlos; Bouman, Katherine L.; Cho, Ilje; Fuentes, Antonio; Gómez, José L.; Gurwell, Mark; Johnson, Michael D.; Kim, Jae-young; Lu, Ru-sen; Martí-vidal, Iván; Moscibrodzka, Monika; Pötzl, Felix M.; Traianou, Efthalia; Van Bemmel, Ilse; Alef, Walter; Anantua, Richard; Asada, Keiichi; Azulay, Rebecca; Bach, Uwe; Baczko, Anne-kathrin; Ball, David; Baloković, Mislav; Barrett, John; Bauböck, Michi; Benson, Bradford A.; Bintley, Dan; Blundell, Raymond; Bower, Geoffrey C.; Boyce, Hope; Bremer, Michael; Brinkerink, Christiaan D.; Brissenden, Roger; Britzen, Silke; Broguiere, Dominique; Bronzwaer, Thomas; Bustamante, Sandra; Byun, Do-young; Carlstrom, John E.; Ceccobello, Chiara; Chael, Andrew; Chatterjee, Koushik; Chatterjee, Shami; Chen, Ming-tang; Chen, Yongjun; Cheng, Xiaopeng; Christian, Pierre; Conroy, Nicholas S.; Conway, John E.; Cordes, James M.; Crawford, Thomas M.; Crew, Geoffrey B.; Cruz-osorio, Alejandro; Cui, Yuzhu; 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; Fraga-encinas, Raquel; Freeman, William T.; Friberg, Per; Fromm, Christian M.; Galison, Peter; Gammie, Charles F.; García, Roberto; Gentaz, Olivier; Georgiev, Boris; Goddi, Ciriaco; Gold, Roman; Gómez-ruiz, Arturo I.; Gu, Minfeng; 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.; Ikeda, Shiro; Impellizzeri, C. M. Violette; Inoue, Makoto; James, David J.; Jannuzi, Buell T.; Jeter, Britton; Jiang, Wu; Jiménez-rosales, Alejandra; Joshi, Abhishek V.; Jung, Taehyun; Karami, Mansour; Karuppusamy, Ramesh; Kawashima, Tomohisa; Keating, Garrett K.; Kettenis, Mark; Kim, Dong-jin; Kim, Jongsoo; Kim, Junhan; Kino, Motoki; Koay, Jun Yi; Kocherlakota, Prashant; Kofuji, Yutaro; Koyama, Shoko; Kramer, Carsten; Kramer, Michael; Kuo, Cheng-yu; La Bella, Noemi; Lauer, Tod R.; Lee, Daeyoung; Lee, Sang-sung; Leung, Po Kin; Levis, Aviad; Li, Zhiyuan; Lindahl, Greg; Lindqvist, Michael; Lisakov, Mikhail; Liu, Kuo; Liuzzo, Elisabetta; Lo, Wen-ping; Lobanov, Andrei P.; Loinard, Laurent; Lonsdale, Colin J.; Macdonald, Nicholas R.; Mao, Jirong; Marchili, Nicola; Markoff, Sera; Marrone, Daniel P.; Marscher, Alan P.; Matsushita, Satoki; Matthews, Lynn D.; Medeiros, Lia; Menten, Karl M.; Michalik, Daniel; Mizuno, Izumi; Mizuno, Yosuke; Moran, James M.; Moriyama, Kotaro; Müller, Cornelia; 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 C. M.; Paraschos, Georgios Filippos; Park, Jongho; Parsons, Harriet; Patel, Nimesh; Pen, Ue-li; Piétu, Vincent; Plambeck, Richard; Popstefanija, Aleksandar; Porth, Oliver; Prather, Ben; Preciado-lópez, Jorge A.; Psaltis, Dimitrios; Pu, Hung-yi; Rao, Ramprasad; Rawlings, Mark G.; Raymond, Alexander W.; Rezzolla, Luciano; Ricarte, Angelo; Ripperda, Bart; Roelofs, Freek; Rogers, Alan; Ros, Eduardo; 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; Souccar, Kamal; Sun, He; Tazaki, Fumie; Tetarenko, Alexandra J.; Tiede, Paul; Tilanus, Remo P. J.; Titus, Michael; Torne, Pablo; Trent, Tyler; Trippe, Sascha; Turk, Matthew; Van Langevelde, Huib Jan; Van Rossum, Daniel R.; Vos, Jesse; Wagner, Jan; Ward-thompson, Derek; Wardle, John; Weintroub, Jonathan; Wex, Norbert; Wharton, Robert; Wiik, Kaj; Witzel, Gunther; Wondrak, Michael F.; Wong, George N.; Wu, Qingwen; Yamaguchi, Paul; Yoon, Doosoo; Young, André; Young, Ken; Younsi, Ziri; Yuan, Feng; Yuan, Ye-fei; Zensus, J. Anton; Zhang, Shuo; Zhao, Shan-shan.

In: The Astrophysical Journal, Vol. 943, No. 2, 01.02.2023, p. 170.

Research output: Contribution to journalArticlepeer-review

Harvard

Jorstad, S, Wielgus, M, Lico, R, Issaoun, S, Broderick, AE, Pesce, DW, Liu, J, Zhao, G, Krichbaum, TP, Blackburn, L, Chan, C, Janssen, M, Ramakrishnan, V, Akiyama, K, Alberdi, A, Algaba, JC, Bouman, KL, Cho, I, Fuentes, A, Gómez, JL, Gurwell, M, Johnson, MD, Kim, J, Lu, R, Martí-vidal, I, Moscibrodzka, M, Pötzl, FM, Traianou, E, Van Bemmel, I, Alef, W, Anantua, R, Asada, K, Azulay, R, Bach, U, Baczko, A, Ball, D, Baloković, M, Barrett, J, Bauböck, M, Benson, BA, Bintley, D, Blundell, R, Bower, GC, Boyce, H, Bremer, M, Brinkerink, CD, Brissenden, R, Britzen, S, Broguiere, D, Bronzwaer, T, Bustamante, S, Byun, D, Carlstrom, JE, Ceccobello, C, Chael, A, Chatterjee, K, Chatterjee, S, Chen, M, Chen, Y, Cheng, X, Christian, P, Conroy, NS, Conway, JE, Cordes, JM, Crawford, TM, Crew, GB, Cruz-osorio, A, Cui, Y, Davelaar, J, De Laurentis, M, Deane, R, Dempsey, J, Desvignes, G, Dexter, J, Dhruv, V, Doeleman, SS, Dougal, S, Dzib, SA, Eatough, RP, Emami, R, Falcke, H, Farah, J, Fish, VL, Fomalont, E, Ford, HA, Fraga-encinas, R, Freeman, WT, Friberg, P, Fromm, CM, Galison, P, Gammie, CF, García, R, Gentaz, O, Georgiev, B, Goddi, C, Gold, R, Gómez-ruiz, AI, Gu, M, Hada, K, Haggard, D, Haworth, K, Hecht, MH, Hesper, R, Heumann, D, Ho, LC, Ho, P, Honma, M, Huang, CL, Huang, L, Hughes, DH, Ikeda, S, Impellizzeri, CMV, Inoue, M, James, DJ, Jannuzi, BT, Jeter, B, Jiang, W, Jiménez-rosales, A, Joshi, AV, Jung, T, Karami, M, Karuppusamy, R, Kawashima, T, Keating, GK, Kettenis, M, Kim, D, Kim, J, Kim, J, Kino, M, Koay, JY, Kocherlakota, P, Kofuji, Y, Koyama, S, Kramer, C, Kramer, M, Kuo, C, La Bella, N, Lauer, TR, Lee, D, Lee, S, Leung, PK, Levis, A, Li, Z, Lindahl, G, Lindqvist, M, Lisakov, M, Liu, K, Liuzzo, E, Lo, W, Lobanov, AP, Loinard, L, Lonsdale, CJ, Macdonald, NR, Mao, J, Marchili, N, Markoff, S, Marrone, DP, Marscher, AP, Matsushita, S, Matthews, LD, Medeiros, L, Menten, KM, Michalik, D, Mizuno, I, Mizuno, Y, Moran, JM, Moriyama, K, Müller, C, Mus, A, Musoke, G, Myserlis, I, Nadolski, A, Nagai, H, Nagar, NM, Nakamura, M, Narayan, R, Narayanan, G, Natarajan, I, Nathanail, A, Fuentes, SN, Neilsen, J, Neri, R, Ni, C, Noutsos, A, Nowak, MA, Oh, J, Okino, H, Olivares, H, Ortiz-león, GN, Oyama, T, Özel, F, Palumbo, DCM, Paraschos, GF, Park, J, Parsons, H, Patel, N, Pen, U, Piétu, V, Plambeck, R, Popstefanija, A, Porth, O, Prather, B, Preciado-lópez, JA, Psaltis, D, Pu, H, Rao, R, Rawlings, MG, Raymond, AW, Rezzolla, L, Ricarte, A, Ripperda, B, Roelofs, F, Rogers, A, Ros, E, Romero-cañizales, C, Roshanineshat, A, Rottmann, H, Roy, AL, Ruiz, I, Ruszczyk, C, Rygl, KLJ, Sánchez, S, Sánchez-argüelles, D, Sánchez-portal, M, Sasada, M, Satapathy, K, Savolainen, T, Schloerb, FP, Schonfeld, J, Schuster, K, Shao, L, Shen, Z, Small, D, Sohn, BW, Soohoo, J, Souccar, K, Sun, H, Tazaki, F, Tetarenko, AJ, Tiede, P, Tilanus, RPJ, Titus, M, Torne, P, Trent, T, Trippe, S, Turk, M, Van Langevelde, HJ, Van Rossum, DR, Vos, J, Wagner, J, Ward-thompson, D, Wardle, J, Weintroub, J, Wex, N, Wharton, R, Wiik, K, Witzel, G, Wondrak, MF, Wong, GN, Wu, Q, Yamaguchi, P, Yoon, D, Young, A, Young, K, Younsi, Z, Yuan, F, Yuan, Y, Zensus, JA, Zhang, S & Zhao, S 2023, 'The Event Horizon Telescope Image of the Quasar NRAO 530', The Astrophysical Journal, vol. 943, no. 2, pp. 170. https://doi.org/10.3847/1538-4357/acaea8

APA

Jorstad, S., Wielgus, M., Lico, R., Issaoun, S., Broderick, A. E., Pesce, D. W., Liu, J., Zhao, G., Krichbaum, T. P., Blackburn, L., Chan, C., Janssen, M., Ramakrishnan, V., Akiyama, K., Alberdi, A., Algaba, J. C., Bouman, K. L., Cho, I., Fuentes, A., ... Zhao, S. (2023). The Event Horizon Telescope Image of the Quasar NRAO 530. The Astrophysical Journal, 943(2), 170. https://doi.org/10.3847/1538-4357/acaea8

Vancouver

Jorstad S, Wielgus M, Lico R, Issaoun S, Broderick AE, Pesce DW et al. The Event Horizon Telescope Image of the Quasar NRAO 530. The Astrophysical Journal. 2023 Feb 1;943(2):170. https://doi.org/10.3847/1538-4357/acaea8

Author

Jorstad, Svetlana ; Wielgus, Maciek ; Lico, Rocco ; Issaoun, Sara ; Broderick, Avery E. ; Pesce, Dominic W. ; Liu, Jun ; Zhao, Guang-yao ; Krichbaum, Thomas P. ; Blackburn, Lindy ; Chan, Chi-kwan ; Janssen, Michael ; Ramakrishnan, Venkatessh ; Akiyama, Kazunori ; Alberdi, Antxon ; Algaba, Juan Carlos ; Bouman, Katherine L. ; Cho, Ilje ; Fuentes, Antonio ; Gómez, José L. ; Gurwell, Mark ; Johnson, Michael D. ; Kim, Jae-young ; Lu, Ru-sen ; Martí-vidal, Iván ; Moscibrodzka, Monika ; Pötzl, Felix M. ; Traianou, Efthalia ; Van Bemmel, Ilse ; Alef, Walter ; Anantua, Richard ; Asada, Keiichi ; Azulay, Rebecca ; Bach, Uwe ; Baczko, Anne-kathrin ; Ball, David ; Baloković, Mislav ; Barrett, John ; Bauböck, Michi ; Benson, Bradford A. ; Bintley, Dan ; Blundell, Raymond ; Bower, Geoffrey C. ; Boyce, Hope ; Bremer, Michael ; Brinkerink, Christiaan D. ; Brissenden, Roger ; Britzen, Silke ; Broguiere, Dominique ; Bronzwaer, Thomas ; Bustamante, Sandra ; Byun, Do-young ; Carlstrom, John E. ; Ceccobello, Chiara ; Chael, Andrew ; Chatterjee, Koushik ; Chatterjee, Shami ; Chen, Ming-tang ; Chen, Yongjun ; Cheng, Xiaopeng ; Christian, Pierre ; Conroy, Nicholas S. ; Conway, John E. ; Cordes, James M. ; Crawford, Thomas M. ; Crew, Geoffrey B. ; Cruz-osorio, Alejandro ; Cui, Yuzhu ; 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 ; Fraga-encinas, Raquel ; Freeman, William T. ; Friberg, Per ; Fromm, Christian M. ; Galison, Peter ; Gammie, Charles F. ; García, Roberto ; Gentaz, Olivier ; Georgiev, Boris ; Goddi, Ciriaco ; Gold, Roman ; Gómez-ruiz, Arturo I. ; Gu, Minfeng ; 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. ; Ikeda, Shiro ; Impellizzeri, C. M. Violette ; Inoue, Makoto ; James, David J. ; Jannuzi, Buell T. ; Jeter, Britton ; Jiang, Wu ; Jiménez-rosales, Alejandra ; Joshi, Abhishek V. ; Jung, Taehyun ; Karami, Mansour ; Karuppusamy, Ramesh ; Kawashima, Tomohisa ; Keating, Garrett K. ; Kettenis, Mark ; Kim, Dong-jin ; Kim, Jongsoo ; Kim, Junhan ; Kino, Motoki ; Koay, Jun Yi ; Kocherlakota, Prashant ; Kofuji, Yutaro ; Koyama, Shoko ; Kramer, Carsten ; Kramer, Michael ; Kuo, Cheng-yu ; La Bella, Noemi ; Lauer, Tod R. ; Lee, Daeyoung ; Lee, Sang-sung ; Leung, Po Kin ; Levis, Aviad ; Li, Zhiyuan ; Lindahl, Greg ; Lindqvist, Michael ; Lisakov, Mikhail ; Liu, Kuo ; Liuzzo, Elisabetta ; Lo, Wen-ping ; Lobanov, Andrei P. ; Loinard, Laurent ; Lonsdale, Colin J. ; Macdonald, Nicholas R. ; Mao, Jirong ; Marchili, Nicola ; Markoff, Sera ; Marrone, Daniel P. ; Marscher, Alan P. ; Matsushita, Satoki ; Matthews, Lynn D. ; Medeiros, Lia ; Menten, Karl M. ; Michalik, Daniel ; Mizuno, Izumi ; Mizuno, Yosuke ; Moran, James M. ; Moriyama, Kotaro ; Müller, Cornelia ; 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 C. M. ; Paraschos, Georgios Filippos ; Park, Jongho ; Parsons, Harriet ; Patel, Nimesh ; Pen, Ue-li ; Piétu, Vincent ; Plambeck, Richard ; Popstefanija, Aleksandar ; Porth, Oliver ; Prather, Ben ; Preciado-lópez, Jorge A. ; Psaltis, Dimitrios ; Pu, Hung-yi ; Rao, Ramprasad ; Rawlings, Mark G. ; Raymond, Alexander W. ; Rezzolla, Luciano ; Ricarte, Angelo ; Ripperda, Bart ; Roelofs, Freek ; Rogers, Alan ; Ros, Eduardo ; 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 ; Souccar, Kamal ; Sun, He ; Tazaki, Fumie ; Tetarenko, Alexandra J. ; Tiede, Paul ; Tilanus, Remo P. J. ; Titus, Michael ; Torne, Pablo ; Trent, Tyler ; Trippe, Sascha ; Turk, Matthew ; Van Langevelde, Huib Jan ; Van Rossum, Daniel R. ; Vos, Jesse ; Wagner, Jan ; Ward-thompson, Derek ; Wardle, John ; Weintroub, Jonathan ; Wex, Norbert ; Wharton, Robert ; Wiik, Kaj ; Witzel, Gunther ; Wondrak, Michael F. ; Wong, George N. ; Wu, Qingwen ; Yamaguchi, Paul ; Yoon, Doosoo ; Young, André ; Young, Ken ; Younsi, Ziri ; Yuan, Feng ; Yuan, Ye-fei ; Zensus, J. Anton ; Zhang, Shuo ; Zhao, Shan-shan. / The Event Horizon Telescope Image of the Quasar NRAO 530. In: The Astrophysical Journal. 2023 ; Vol. 943, No. 2. pp. 170.

BibTeX

@article{7330d14039eb48638efd9f631a74a7c1,
title = "The Event Horizon Telescope Image of the Quasar NRAO 530",
abstract = " We report on the observations of the quasar NRAO 530 with the Event Horizon Telescope (EHT) on 2017 April 5−7, when NRAO 530 was used as a calibrator for the EHT observations of Sagittarius A*. At z = 0.902, this is the most distant object imaged by the EHT so far. We reconstruct the first images of the source at 230 GHz, at an unprecedented angular resolution of ∼20 μ as, both in total intensity and in linear polarization (LP). We do not detect source variability, allowing us to represent the whole data set with static images. The images reveal a bright feature located on the southern end of the jet, which we associate with the core. The feature is linearly polarized, with a fractional polarization of ∼5%–8%, and it has a substructure consisting of two components. Their observed brightness temperature suggests that the energy density of the jet is dominated by the magnetic field. The jet extends over 60 μ as along a position angle ∼ −28°. It includes two features with orthogonal directions of polarization (electric vector position angle), parallel and perpendicular to the jet axis, consistent with a helical structure of the magnetic field in the jet. The outermost feature has a particularly high degree of LP, suggestive of a nearly uniform magnetic field. Future EHT observations will probe the variability of the jet structure on microarcsecond scales, while simultaneous multiwavelength monitoring will provide insight into the high-energy emission origin. ",
author = "Svetlana Jorstad and Maciek Wielgus and Rocco Lico and Sara Issaoun and Broderick, {Avery E.} and Pesce, {Dominic W.} and Jun Liu and Guang-yao Zhao and Krichbaum, {Thomas P.} and Lindy Blackburn and Chi-kwan Chan and Michael Janssen and Venkatessh Ramakrishnan and Kazunori Akiyama and Antxon Alberdi and Algaba, {Juan Carlos} and Bouman, {Katherine L.} and Ilje Cho and Antonio Fuentes and G{\'o}mez, {Jos{\'e} L.} and Mark Gurwell and Johnson, {Michael D.} and Jae-young Kim and Ru-sen Lu and Iv{\'a}n Mart{\'i}-vidal and Monika Moscibrodzka and P{\"o}tzl, {Felix M.} and Efthalia Traianou and {Van Bemmel}, Ilse and Walter Alef and Richard Anantua and Keiichi Asada and Rebecca Azulay and Uwe Bach and Anne-kathrin Baczko and David Ball and Mislav Balokovi{\'c} and John Barrett and Michi Baub{\"o}ck and Benson, {Bradford A.} and Dan Bintley and Raymond Blundell and Bower, {Geoffrey C.} and Hope Boyce and Michael Bremer and Brinkerink, {Christiaan D.} and Roger Brissenden and Silke Britzen and Dominique Broguiere and Thomas Bronzwaer and Sandra Bustamante and Do-young Byun and Carlstrom, {John E.} and Chiara Ceccobello and Andrew Chael and Koushik Chatterjee and Shami Chatterjee and Ming-tang Chen and Yongjun Chen and Xiaopeng Cheng and Pierre Christian and Conroy, {Nicholas S.} and Conway, {John E.} and Cordes, {James M.} and Crawford, {Thomas M.} and Crew, {Geoffrey B.} and Alejandro Cruz-osorio and Yuzhu Cui and Jordy Davelaar and {De Laurentis}, Mariafelicia and Roger Deane and Jessica Dempsey and Gregory Desvignes and Jason Dexter and Vedant Dhruv and Doeleman, {Sheperd S.} and Sean Dougal and Dzib, {Sergio A.} and Eatough, {Ralph P.} and Razieh Emami and Heino Falcke and Joseph Farah and Fish, {Vincent L.} and Ed Fomalont and Ford, {H. Alyson} and Raquel Fraga-encinas and Freeman, {William T.} and Per Friberg and Fromm, {Christian M.} and Peter Galison and Gammie, {Charles F.} and Roberto Garc{\'i}a and Olivier Gentaz and Boris Georgiev and Ciriaco Goddi and Roman Gold and G{\'o}mez-ruiz, {Arturo I.} and Minfeng Gu and Kazuhiro Hada and Daryl Haggard and Kari Haworth and Hecht, {Michael H.} and Ronald Hesper and Dirk Heumann and Ho, {Luis C.} and Paul Ho and Mareki Honma and Huang, {Chih-wei L.} and Lei Huang and Hughes, {David H.} and Shiro Ikeda and Impellizzeri, {C. M. Violette} and Makoto Inoue and James, {David J.} and Jannuzi, {Buell T.} and Britton Jeter and Wu Jiang and Alejandra Jim{\'e}nez-rosales and Joshi, {Abhishek V.} and Taehyun Jung and Mansour Karami and Ramesh Karuppusamy and Tomohisa Kawashima and Keating, {Garrett K.} and Mark Kettenis and Dong-jin Kim and Jongsoo Kim and Junhan Kim and Motoki Kino and Koay, {Jun Yi} and Prashant Kocherlakota and Yutaro Kofuji and Shoko Koyama and Carsten Kramer and Michael Kramer and Cheng-yu Kuo and {La Bella}, Noemi and Lauer, {Tod R.} and Daeyoung Lee and Sang-sung Lee and Leung, {Po Kin} and Aviad Levis and Zhiyuan Li and Greg Lindahl and Michael Lindqvist and Mikhail Lisakov and Kuo Liu and Elisabetta Liuzzo and Wen-ping Lo and Lobanov, {Andrei P.} and Laurent Loinard and Lonsdale, {Colin J.} and Macdonald, {Nicholas R.} and Jirong Mao and Nicola Marchili and Sera Markoff and Marrone, {Daniel P.} and Marscher, {Alan P.} and Satoki Matsushita and Matthews, {Lynn D.} and Lia Medeiros and Menten, {Karl M.} and Daniel Michalik and Izumi Mizuno and Yosuke Mizuno and Moran, {James M.} and Kotaro Moriyama and Cornelia M{\"u}ller and Alejandro Mus and Gibwa Musoke and Ioannis Myserlis and Andrew Nadolski and Hiroshi Nagai and Nagar, {Neil M.} and Masanori Nakamura and Ramesh Narayan and Gopal Narayanan and Iniyan Natarajan and Antonios Nathanail and Fuentes, {Santiago Navarro} and Joey Neilsen and Roberto Neri and Chunchong Ni and Aristeidis Noutsos and Nowak, {Michael A.} and Junghwan Oh and Hiroki Okino and H{\'e}ctor Olivares and Ortiz-le{\'o}n, {Gisela N.} and Tomoaki Oyama and Feryal {\"O}zel and Palumbo, {Daniel C. M.} and Paraschos, {Georgios Filippos} and Jongho Park and Harriet Parsons and Nimesh Patel and Ue-li Pen and Vincent Pi{\'e}tu and Richard Plambeck and Aleksandar Popstefanija and Oliver Porth and Ben Prather and Preciado-l{\'o}pez, {Jorge A.} and Dimitrios Psaltis and Hung-yi Pu and Ramprasad Rao and Rawlings, {Mark G.} and Raymond, {Alexander W.} and Luciano Rezzolla and Angelo Ricarte and Bart Ripperda and Freek Roelofs and Alan Rogers and Eduardo Ros and Cristina Romero-ca{\~n}izales and Arash Roshanineshat and Helge Rottmann and Roy, {Alan L.} and Ignacio Ruiz and Chet Ruszczyk and Rygl, {Kazi L. J.} and Salvador S{\'a}nchez and David S{\'a}nchez-arg{\"u}elles and Miguel S{\'a}nchez-portal and Mahito Sasada and Kaushik Satapathy and Tuomas Savolainen and Schloerb, {F. Peter} and Jonathan Schonfeld and Karl-friedrich Schuster and Lijing Shao and Zhiqiang Shen and Des Small and Sohn, {Bong Won} and Jason Soohoo and Kamal Souccar and He Sun and Fumie Tazaki and Tetarenko, {Alexandra J.} and Paul Tiede and Tilanus, {Remo P. J.} and Michael Titus and Pablo Torne and Tyler Trent and Sascha Trippe and Matthew Turk and {Van Langevelde}, {Huib Jan} and {Van Rossum}, {Daniel R.} and Jesse Vos and Jan Wagner and Derek Ward-thompson and John Wardle and Jonathan Weintroub and Norbert Wex and Robert Wharton and Kaj Wiik and Gunther Witzel and Wondrak, {Michael F.} and Wong, {George N.} and Qingwen Wu and Paul Yamaguchi and Doosoo Yoon and Andr{\'e} Young and Ken Young and Ziri Younsi and Feng Yuan and Ye-fei Yuan and Zensus, {J. Anton} and Shuo Zhang and Shan-shan Zhao",
year = "2023",
month = feb,
day = "1",
doi = "10.3847/1538-4357/acaea8",
language = "English",
volume = "943",
pages = "170",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "IOP Publishing Ltd.",
number = "2",

}

RIS

TY - JOUR

T1 - The Event Horizon Telescope Image of the Quasar NRAO 530

AU - Jorstad, Svetlana

AU - Wielgus, Maciek

AU - Lico, Rocco

AU - Issaoun, Sara

AU - Broderick, Avery E.

AU - Pesce, Dominic W.

AU - Liu, Jun

AU - Zhao, Guang-yao

AU - Krichbaum, Thomas P.

AU - Blackburn, Lindy

AU - Chan, Chi-kwan

AU - Janssen, Michael

AU - Ramakrishnan, Venkatessh

AU - Akiyama, Kazunori

AU - Alberdi, Antxon

AU - Algaba, Juan Carlos

AU - Bouman, Katherine L.

AU - Cho, Ilje

AU - Fuentes, Antonio

AU - Gómez, José L.

AU - Gurwell, Mark

AU - Johnson, Michael D.

AU - Kim, Jae-young

AU - Lu, Ru-sen

AU - Martí-vidal, Iván

AU - Moscibrodzka, Monika

AU - Pötzl, Felix M.

AU - Traianou, Efthalia

AU - Van Bemmel, Ilse

AU - Alef, Walter

AU - Anantua, Richard

AU - Asada, Keiichi

AU - Azulay, Rebecca

AU - Bach, Uwe

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PY - 2023/2/1

Y1 - 2023/2/1

N2 - We report on the observations of the quasar NRAO 530 with the Event Horizon Telescope (EHT) on 2017 April 5−7, when NRAO 530 was used as a calibrator for the EHT observations of Sagittarius A*. At z = 0.902, this is the most distant object imaged by the EHT so far. We reconstruct the first images of the source at 230 GHz, at an unprecedented angular resolution of ∼20 μ as, both in total intensity and in linear polarization (LP). We do not detect source variability, allowing us to represent the whole data set with static images. The images reveal a bright feature located on the southern end of the jet, which we associate with the core. The feature is linearly polarized, with a fractional polarization of ∼5%–8%, and it has a substructure consisting of two components. Their observed brightness temperature suggests that the energy density of the jet is dominated by the magnetic field. The jet extends over 60 μ as along a position angle ∼ −28°. It includes two features with orthogonal directions of polarization (electric vector position angle), parallel and perpendicular to the jet axis, consistent with a helical structure of the magnetic field in the jet. The outermost feature has a particularly high degree of LP, suggestive of a nearly uniform magnetic field. Future EHT observations will probe the variability of the jet structure on microarcsecond scales, while simultaneous multiwavelength monitoring will provide insight into the high-energy emission origin.

AB - We report on the observations of the quasar NRAO 530 with the Event Horizon Telescope (EHT) on 2017 April 5−7, when NRAO 530 was used as a calibrator for the EHT observations of Sagittarius A*. At z = 0.902, this is the most distant object imaged by the EHT so far. We reconstruct the first images of the source at 230 GHz, at an unprecedented angular resolution of ∼20 μ as, both in total intensity and in linear polarization (LP). We do not detect source variability, allowing us to represent the whole data set with static images. The images reveal a bright feature located on the southern end of the jet, which we associate with the core. The feature is linearly polarized, with a fractional polarization of ∼5%–8%, and it has a substructure consisting of two components. Their observed brightness temperature suggests that the energy density of the jet is dominated by the magnetic field. The jet extends over 60 μ as along a position angle ∼ −28°. It includes two features with orthogonal directions of polarization (electric vector position angle), parallel and perpendicular to the jet axis, consistent with a helical structure of the magnetic field in the jet. The outermost feature has a particularly high degree of LP, suggestive of a nearly uniform magnetic field. Future EHT observations will probe the variability of the jet structure on microarcsecond scales, while simultaneous multiwavelength monitoring will provide insight into the high-energy emission origin.

UR - https://www.mendeley.com/catalogue/04feb9a5-767d-3759-9541-5cf96791a8ef/

U2 - 10.3847/1538-4357/acaea8

DO - 10.3847/1538-4357/acaea8

M3 - Article

VL - 943

SP - 170

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 2

ER -

ID: 104767679