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

Spectral analysis of a parsec-scale jet in M 87: Observational constraint on the magnetic field strengths in the jet

Autor: Hyunwook Ro, Motoki Kino, Bong Won Sohn, Kazuhiro Hada, Jongho Park, Masanori Nakamura, Yuzhu Cui, Kunwoo Yi, Aeree Chung, Jeffrey Hodgson, Tomohisa Kawashima, Tao An, Sascha Trippe, Juan-Carlos Algaba, Jae-Young Kim, Satoko Sawada-Satoh, Kiyoaki Wajima, Zhiqiang Shen, Xiaopeng Cheng, Ilje Cho, Wu Jiang, Taehyun Jung, Jee-Won Lee, Kotaro Niinuma, Junghwan Oh, Fumie Tazaki, Guang-Yao Zhao, Kazunori Akiyama, Mareki Honma, Jeong Ae Lee, Rusen Lu, Yingkang Zhang, Keiichi Asada, Lang Cui, Yoshiaki Hagiwara, Tomoya Hirota, Noriyuki Kawaguchi, Shoko Koyama, Sang-Sung Lee, Se-Jin Oh, Koichiro Sugiyama, Mieko Takamura, Xuezheng Wang, Ju-Yeon Hwang, Dong-Kyu Jung, Hyo-Ryoung Kim, Jeong-Sook Kim, Hideyuki Kobayashi, Chung-Sik Oh, Tomoaki Oyama, Duk-Gyoo Roh, Jae-Hwan Yeom

Publikováno v: Astronomy & Astrophysics. 673:A159

Because of its proximity and the large size of its black hole, M87 is one of the best targets for studying the launching mechanism of active galactic nucleus jets. Currently, magnetic fields are considered to be an essential factor in the launching a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f7a4ba77c007d2f09820d1da2dd9b237
https://doi.org/10.1051/0004-6361/202142988

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