Trigonometric parallax and proper motion of Sagittarius A* measured by VERA using the new broad-band back-end system OCTAVE-DAS

Autor: Oyama, Tomoaki, Nagayama, Takumi, Yamauchi, Aya, Sakai, Daisuke, Imai, Hiroshi, Honma, Mareki, Asakura, Yu, Hada, Kazuhiro, Hagiwara, Yoshiaki, Hirota, Tomoya, Jike, Takaaki, Kono, Yusuke, Suzuki, Syunsaku, Kobayashi, Hideyuki, Kawaguchi, Noriyuki

We successfully measured the trigonometric parallax of Sagittarius A* (Sgr A*) to be $117\pm17$ micro-arcseconds ($\mu$as) using the VLBI Exploration of Radio Astrometry (VERA) with the newly developed broad-band signal-processing system named OCTAVE

Externí odkaz: http://arxiv.org/abs/2401.02312

The Past and Future of East Asia to Italy: Nearly Global VLBI

Autor: Giovannini, Gabriele, Cui, Yuzhu, Hada, Kazuhiro, Yi, Kunwoo, Ro, Hyunwook, Sohn, Bong Won, Takamura, Mieko, Buttaccio, Salvatore, D'Ammando, Filippo, Giroletti, Marcello, Hagiwara, Yoshiaki, Kino, Motoki, Kravchenko, Evgeniya, Maccaferri, Giuseppe, Melnikov, Alexey, Niinuma, Kota ro, Orienti, Monica, Wajima, Kiyoaki, Akiyama, Kazunori, Doi, Akihiro, Byun, Do-Young, Hirota, Tomoya, Honma, Mareki, Jung, Taehyun, Kobayashi, Hideyuki, Koyama, Shoko, Melis, Andrea, Migoni, Carlo, Murata, Yasuhiro, Nagai, Hiroshi, Sawada-Satoh, Satoko, Stagni, Matteo

Publikováno v: Galaxies 2023 11(2) 49

We present here the East Asia to Italy Nearly Global VLBI (EATING VLBI) project. How this project started and the evolution of the international collaboration between Korean, Japanese, and Italian researchers to study compact sources with VLBI observ

Externí odkaz: http://arxiv.org/abs/2303.14518

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

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

Publikováno v: Galaxies 2022, 10(6), 113

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: http://arxiv.org/abs/2212.07040

A new model for determining risk of male infertility from serum hormone levels, without semen analysis.

Autor: Kobayashi, Hideyuki¹ (AUTHOR) hideyukk@med.toho-u.ac.jp, Uetani, Masato¹ (AUTHOR), Yamabe, Fumito¹ (AUTHOR), Mitsui, Yozo¹ (AUTHOR), Nakajima, Koichi¹ (AUTHOR), Nagao, Koichi¹ (AUTHOR)

Publikováno v: Scientific Reports. 7/31/2024, Vol. 14 Issue 1, p1-11. 11p.

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

Autor: Cui, Yuzhu, 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 Peng, Niinuma, Kotaro, Wajima, Kiyoaki, Zhang, Ying Kang, Kawaguchi, Noriyuki, Algaba, Juan Carlos, Koyama, Shoko, Hirota, Tomoya, Yonekura, Yoshinori, Sakai, Nobuyuki, Xia, Bo, Jiang, Yong Bin, Yu, Lin Feng, Gou, Wei, Hwang, Ju Yeon, Jiang, Yong Chen, Sun, Yun Xia, Jung, Dong Kyu, Kim, Hyo Ryoung, Kim, Jeong Sook, Kobayashi, Hideyuki, Lee, Jee Won, Lee, Jeong Ae, Zhang, Hua, Li, Guang Hui, Xu, Zhi Qiang, Li, Peng, Oh, Jung Hwan, Oh, Se Jin, Oh, Chung Sik, Oyama, Tomoaki, Roh, Duk Gyoo, Shibata, Katsunori M., Guo, Wen, Zhao, Rong Bing, Zhong, Wei Ye, Wang, Jin Qing, Yang, Wen Jun, Yan, Hao, Yeom, Jae Hwan, Li, Bin, Li, Xiao Fei, Yuan, Jian Ping, Dong, Jian, Chen, Zhong, Akiyama, Kazunori, Asada, Keiichi, Byun, Do Young, Hagiwara, Yoshiaki, Hodgson, Jeffrey, Jung, Tae Hyun, Kim, Kee Tae, Lee, Sang Sung, Yi, Kunwoo, Liu, Qing Hui, Liu, Xiang, Lu, Ru Sen, Nakamura, Masanori, Trippe, Sascha, Wang, Na, Wang, Xue Zheng, Zhang, Bo

The East Asian very-long-baseline interferometry (VLBI) Network (EAVN) is a rapidly evolving international VLBI array that is currently promoted under joint efforts among China, Japan, and Korea. EAVN aims at forming a joint VLBI Network by combining

Externí odkaz: http://arxiv.org/abs/2104.05525