Overview of the Observing System and Initial Scientific Accomplishments of the East Asian VLBI Network (EAVN)

Autor: Kazunori Akiyama, Juan-Carlos Algaba, Tao An, Keiichi Asada, Kitiyanee Asanok, Do-Young Byun, Thanapol Chanapote, Wen Chen, Zhong Chen, Xiaopeng Cheng, James O. Chibueze, Ilje Cho, Se-Hyung Cho, Hyun-Soo Chung, Lang Cui, Yuzhu Cui, Akihiro Doi, Jian Dong, Kenta Fujisawa, Wei Gou, Wen Guo, Kazuhiro Hada, Yoshiaki Hagiwara, Tomoya Hirota, Jeffrey A. Hodgson, Mareki Honma, Hiroshi Imai, Phrudth Jaroenjittichai, Wu Jiang, Yongbin Jiang, Yongchen Jiang, Takaaki Jike, Dong-Kyu Jung, Taehyun Jung, Noriyuki Kawaguchi, Dong-Jin Kim, Hyo-Ryoung Kim, Jaeheon Kim, Jeong-Sook Kim, Kee-Tae Kim, Soon-Wook Kim, Motoki Kino, Hideyuki Kobayashi, Shoko Koyama, Busaba H. Kramer, Jee-Won Lee, Jeong Ae Lee, Sang-Sung Lee, Sang Won Lee, Bin Li, Guanghui Li, Xiaofei Li, Zhixuan Li, Qinghui Liu, Xiang Liu, Ru-Sen Lu, Kazuhito Motogi, Masanori Nakamura, Kotaro Niinuma, Chungsik Oh, Hongjong Oh, Junghwan Oh, Se-Jin Oh, Tomoaki Oyama, Jongho Park, Saran Poshyachinda, Hyunwook Ro, Duk-Gyoo Roh, Wiphu Rujopakarn, Nobuyuki Sakai, Satoko Sawada-Satoh, Zhi-Qiang Shen, Katsunori M. Shibata, Bong Won Sohn, Boonrucksar Soonthornthum, Koichiro Sugiyama, Yunxia Sun, Mieko Takamura, Yoshihiro Tanabe, Fumie Tazaki, Sascha Trippe, Kiyoaki Wajima, Jinqing Wang, Na Wang, Shiqiang Wang, Xuezheng Wang, Bo Xia, Shuangjing Xu, Hao Yan, Wenjun Yang, Jae-Hwan Yeom, Kunwoo Yi, Sang-Oh Yi, Yoshinori Yonekura, Hasu Yoon, Linfeng Yu, Jianping Yuan, Youngjoo Yun, Bo Zhang, Hua Zhang, Yingkang Zhang, Guang-Yao Zhao, Rongbing Zhao, Weiye Zhong, on behalf of the East Asian VLBI Network Collaboration

Publikováno v: Galaxies, Vol 10, Iss 6, p 113 (2022)

The East Asian VLBI Network (EAVN) is an international VLBI facility in East Asia and is operated under mutual collaboration between East Asian countries, as well as part of Southeast Asian and European countries. EAVN currently consists of 16 radio

Externí odkaz: https://doaj.org/article/3dbc809e466e44aeaf60239f9a82388b

Precessing jet nozzle connecting to a spinning black hole in M87

Autor: Yuzhu Cui, Kazuhiro Hada, Tomohisa Kawashima, Motoki Kino, Weikang Lin, Mareki Honma, Hyunwook Ro, Yosuke Mizuno, Kunwoo Yi, Jintao Yu, Jongho Park, Wu Jiang, Zhi-Qiang Shen, Evgeniya Kravchenko, Juan Carlos Algaba, Xiaopeng Cheng, Ilje Cho, Gabriele Giovannini, Marcello Giroletti, Taehyun Jung, Ru-Sen Lu, Kotaro Niinuma, Junghwan Oh, Ken Ohsuga, Satoko Sawada-Satoh, Bong Won Sohn, Hiroyuki R. Takahashi, Mieko Takamura, Fumie Tazaki, Sascha Trippe, Kiyoaki Wajima, Kazunori Akiyama, Tao An, Keiichi Asada, Salvo Buttaccio, Do-Young Byun, Lang Cui, Yoshiaki Hagiwara, Tomoya Hirota, Jeffrey Hodgson, Noriyuki Kawaguchi, Jaeheon Kim, Sang-sung Lee, Jee Won Lee, Jeong Ae Lee, Giuseppe Maccaferri, Andrea Melis, Alexey Melnikov, Carlo Migoni, Se-Jin Oh, Koichiro Sugiyama, Xuezheng Wang, Yingkang Zhang, Zhong Chen, Ju-Yeon Hwang, Dong-Kyu Jung, Hyo-Ryoung Kim, Jeong-Sook Kim, Hideyuki Kobayashi, Bin Li, Guanghui Li, Xiaofei Li, Z.Y. Liu, Qinghui Liu, Xiang Liu, Chung-Sik Oh, Tomoaki Oyama, Duk-Gyoo Roh, Jinqing Wang, Na Wang, Shiqiang Wang, Bo Xia, Hao Yan, Jae-Hwan Yeom, Yoshinori Yonekura, Jianping Yuan, Hua Zhang, Rongbin Zhao, Weiye Zhong

Powerful relativistic jets in active galactic nuclei (AGN) are believed to be originated from the accretion of material onto the supermassive black hole (SMBH)1. The nearby radio galaxy M87 is one of the best examples of this phenomenon, and the rece

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0c66f184e1000057cb765e6d0e73bd19
https://doi.org/10.21203/rs.3.rs-2624984/v1

East Asian VLBI Network Observations of Active Galactic Nuclei Jets: Imaging with KaVA+Tianma+Nanshan

Autor: Yong Bin Jiang, Chung Sik Oh, Lin Feng Yu, Jee Won Lee, Taehyun Jung, Fumie Tazaki, Satoko Sawada-Satoh, Wei Gou, Bo Zhang, Na Wang, Se-Jin Oh, Jian Ping Yuan, Keiichi Asada, Wei Ye Zhong, Hideyuki Kobayashi, Katsunori M. Shibata, Zhong Chen, Kunwoo Yi, Motoki Kino, Yoshiaki Hagiwara, Qing Hui Liu, Yun Xia Sun, Masanori Nakamura, Xue Zheng Wang, Ru-Sen Lu, Zhi Qiang Xu, Jeong Sook Kim, Kiyoaki Wajima, Yuzhu Cui, Duk Gyoo Roh, Wenjun Yang, Mareki Honma, Xiang Liu, Yong Chen Jiang, Tomoya Hirota, Shoko Koyama, Ying Kang Zhang, Noriyuki Kawaguchi, Juan-Carlos Algaba, Sascha Trippe, Tao An, Guang Hui Li, Ilje Cho, Rong Bing Zhao, Jongho Park, Bong Won Sohn, Bin Li, Nobuyuki Sakai, Hua Zhang, Bo Xia, Hyunwook Ro, Jian Dong, Guang-Yao Zhao, Sang-Sung Lee, Kazuhiro Hada, Jin Qing Wang, Hao Yan, Jeong Ae Lee, Jeffrey A. Hodgson, Ju-Yeon Hwang, Do-Young Byun, Wu Jiang, Kazunori Akiyama, Wen Guo, Yoshinori Yonekura, Junghwan Oh, Hyo Ryoung Kim, Tomoaki Oyama, Peng Li, Xiaopeng Cheng, Lang Cui, Zhi-Qiang Shen, Dong Kyu Jung, Xiao Fei Li, Kotaro Niinuma, Kee-Tae Kim, Jae Hwan Yeom

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
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Full list of authors: Cui, Yu-Zhu; Hada, Kazuhiro; Kino, Motoki; Sohn, Bong-Won; Park, Jongho; Ro, Hyun-Wook; Sawada-Satoh, Satoko; Jiang, Wu; Cui, Lang; Honma, Mareki; Shen, Zhi-Qiang; Tazaki, Fumie; An, Tao; Cho, Ilje; Zhao, Guang-Yao; Cheng, Xiao-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a66f4c126f54b73196ad17dd69f120a
http://arxiv.org/abs/2104.05525

Jet Kinematics of the Quasar 4C +21.35 from Observations with the KaVA Very Long Baseline Interferometry Array

Autor: Hideyuki Kobayashi, Sascha Trippe, Se-Jin Oh, Kazuhiro Hada, Dong-Kyu Jung, Ju-Yeon Hwang, Guang-Yao Zhao, Hyunwook Ro, Chungsik Oh, N. Kawaguchi, Juan-Carlos Algaba, S. Sawada-Satoh, Kazunori Akiyama, Mareki Honma, Bong Won Sohn, Jee Won Lee, Taehyun Jung, Hyemin Yoo, Ilje Cho, Hyo-Ryoung Kim, Katsunori M. Shibata, Fumie Tazaki, Yoshiaki Hagiwara, Kotaro Niinuma, Duk-Gyoo Roh, Junghwan Oh, Zhi-Qiang Shen, Sang-Sung Lee, Wu Jiang, Hyun-Goo Kim, Taeseok Lee, Motoki Kino, Yuzhu Cui, Kiyoaki Wajima, Se-Hyung Cho, Tao An, Jeong Ae Lee, Jong-Ho Park, Jeffrey A. Hodgson, Jae-Hwan Yeom, Do-Young Byun, Shoko Koyama

We present the jet kinematics of the flat spectrum radio quasar (FSRQ) 4C +21.35 using time-resolved KaVA very long baseline interferometry array radio maps obtained from September 2014 to July 2016. During two out of three observing campaigns, obser

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f83dfc247cdcf6d76d26e0efe0fdd2bf
http://arxiv.org/abs/1904.02894

Kinematics of the M87 Jet in the Collimation Zone: Gradual Acceleration and Velocity Stratification

Autor: Kotaro Niinuma, Jongsoo Kim, Juan-Carlos Algaba, Hyunwook Ro, Sascha Trippe, Fumie Tazaki, Do-Young Byun, Taehyun Jung, Keiichi Asada, Yoshiaki Hagiwara, Chung Sik Oh, Jee Won Lee, Ilje Cho, Duk-Gyoo Roh, Masanori Nakamura, Kazuhiro Hada, Hyo-Ryoung Kim, Se-Jin Oh, Dong-Kyu Jung, Hideyuki Kobayashi, Mareki Honma, Jeffrey A. Hodgson, Motoki Kino, Ju-Yeon Hwang, Zhi-Qiang Shen, Katsunori M. Shibata, Satoko Sawada-Satoh, Yingkang Zhang, Bong Won Sohn, Wu Jiang, Kiyoaki Wajima, Sang-Sung Lee, Jae-Hwan Yeom, Xiaopeng Cheng, Jongho Park, Tao An, Yuzhu Cui, Kazunori Akiyama, Guang-Yao Zhao

Publikováno v: The Astrophysical Journal. 887:147

We study the kinematics of the M87 jet using the first year data of the KVN and VERA Array (KaVA) large program, which has densely monitored the jet at 22 and 43 GHz since 2016. We find that the apparent jet speeds generally increase from $\approx0.3

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d31d933e876fd7838004d74ca7ecc43
https://doi.org/10.3847/1538-4357/ab5584