Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Masachika Kijima"'
Autor:
Makoto Matsui, Ryuichi Kamohara, Yukitoshi Kan-ya, Tomoaki Oyama, Takeshi Bushimata, Tetsuo Sasao, Chung Sik Oh, Takeshi Miyaji, Yoon Kyung Choi, Kenta Maruyama, Noriyuki Kawaguchi, Seiji Kameno, Yoshiaki Tamura, Katsunori M. Shibata, Mayumi Sato, Seisuke Kuji, Seiji Manabe, Masachika Kijima, Hideyuki Kobayashi, Kazuyoshi Yamashita, Akiharu Nakagawa, Kayoko Nakamura, Tomoya Hirota, Toshihiro Omodaka, Naoko Matsumoto, Takaaki Jike, Hiroshi Imai, Tomoharu Kurayama, Mareki Honma, Mi Kyoung Kim, Kenzaburo Iwadate, Satoshi Sakai, Katsuhisa Sato, Osamu Kameya, Takumi Nagayama, Miyuki Thushima
Publikováno v:
Publications of the Astronomical Society of Japan. 60:1007-1012
We report astrometric observations of H2O masers around the red supergiant VY Canis Majoris (VY CMa) carried out with VLBI Exploration of Radio Astrometry (VERA). Based on astrometric monitoring for 13 months, we successfully measured a trigonometric
Autor:
Takeshi Bushimata, Yoon Kyung Choi, Takaaki Jike, Satoshi Sakai, Mayumi Sato, Hiroshi Imai, Noriyuki Kawaguchi, Seiji Manabe, Valentin Bujarrabal, Kazuyoshi Yamashita, Hideyuki Kobayashi, Seisuke Kuji, Toshihiro Omodaka, Katsunori M. Shibata, Takeshi Miyaji, Osamu Kameya, Tomoya Hirota, Takumi Nagayama, Akiharu Nakagawa, Katsuhisa Sato, Tetsuo Sasao, Yoshiaki Tamura, Ryuichi Kamohara, Tomoaki Oyama, Chung Sik Oh, Yukitoshi Kan-ya, Mi Kyoung Kim, Masachika Kijima, Tomoharu Kurayama, Mareki Honma, Kenzaburo Iwadate
Publikováno v:
Publications of the Astronomical Society of Japan. 60:1023-1029
We present phase-referenced maps of the SiO maser transitions v = 1 J = 1–0 and v = 2 J = 1–0 from the symbiotic stellar system R Aquarii, which hosts an evolved AGB star plus a hot companion. Observations were performed at two epochs: 2004.98 an
Autor:
Takeshi Bushimata, Hideyuki Kobayashi, Osamu Kameya, Akane Yoshimura, Satoshi Sakai, Katsunori M. Shibata, Noriyuki Kawaguchi, Masachika Kijima, Yoshiaki Tamura, Toshihiro Omodaka, Seisuke Kuji, Katsuhisa Sato, Takeshi Miyaji, Takaaki Jike, Tomoharu Kurayama, Ryuichi Kamohara, Mareki Honma, Seiji Manabe, Tomoaki Oyama, Hiroshi Imai, Kenzaburo Iwadate, Tomoya Hirota, Rie Shimizu, Hiroshi Suda, Akiharu Nakagawa, Tetsuo Sasao
Publikováno v:
Publications of the Astronomical Society of Japan. 60:935-950
We present the technique of instrumental delay calibration for the dual-beam system of VLBI Exploration of Radio Astrometry (VERA), namely, the horn-on-dish method, in which artificial noise sources are mounted on the antenna feedome base and a wide-
Autor:
Masachika Kijima, Mi Kyoung Kim, Tomoaki Oyama, Yuji Ueno, Yoon Kyung Choi, Hiroshi Suda, Nicolas Pradel, Kousuke Ueda, Seisuke Kuji, Tetsuo Sasao, Miyuki Tsushima, Seiji Manabe, Kazuma Ando, Akiharu Nakagawa, Takeshi Miyaji, Takeshi Bushimata, Chung Sik Oh, Kenta Maruyama, Takaaki Jike, Tomoya Hirota, Yukitoshi Kan-ya, Naoko Matsumoto, Takumi Nagayama, Ryuichi Kamohara, Yoshiaki Tamura, Hiroshi Imai, Noriyuki Kawaguchi, Seiji Kameno, Kazuyoshi Yamashita, Osamu Kameya, Katsuhisa Sato, Katsunori M. Shibata, Satoshi Sakai, Kayoko Nakamura, Toshihisa Maeda, Mareki Honma, Hideyuki Kobayashi, Mayumi Sato, Tomoharu Kurayama, Kenzaburo Iwadate, Makoto Matsui, Toshihiro Omodaka, Daisuke Nyu
Publikováno v:
Publications of the Astronomical Society of Japan. 60:1013-1021
We present a distance measurement for the semiregular variable S Crateris (S Crt) based on its annual parallax. With the unique dual beam system of the VLBI Exploration for Radio Astrometry (VERA) telescopes, we measured the absolute proper motion of
Autor:
Sei-ichiro Sakakibara, Seiji Kameno, Miyuki Tsushima, Kayoko Nakamura, Riiko Nagayoshi, Toshihisa Maeda, Hideyuki Kobayashi, D. Namikawa, Mina Kuroki, Takayuki Kai, Tomoaki Oyama, Kosuke Ueda, Takumi Nagayama, Kazuma Ando, Kouichiro Nakashima, Noritomo Inomata, Yuya Ueda, Masachika Kijima, Kazuyoshi Yamashita, Tomoya Hirota, Takeshi Miyaji, Kenta Maruyama, Hiroshi Imai, Motonobu Shintani, Kasumi Sora, Akiharu Nakagawa, Naoko Matsumoto, Rie Shimizu, Toshihiro Omodaka
Publikováno v:
Publications of the Astronomical Society of Japan. 60:1077-1131
Autor:
Masachika Kijima, Akiharu Nakagawa, Katsuhisa Sato, Takeshi Bushimata, Takeshi Miyaji, Hideyuki Kobayashi, Seisuke Kuji, Tetsuo Sasao, Tomoharu Kurayama, Seiji Manabe, Mareki Honma, Hiroshi Imai, Yukitoshi Kan-ya, Katsunori M. Shibata, Toshihiro Omodaka, Osamu Kameya, Kenzaburo Iwadate, Yoshiaki Tamura, Ryuichi Kamohara, Takumi Nagayama, Tomoaki Oyama, Chung Sik Oh, Satoshi Sakai, Noriyuki Kawaguchi, Kazuyoshi Yamashita, Tomoya Hirota, Takaaki Jike, Yoon Kyung Choi
Publikováno v:
Publications of the Astronomical Society of Japan. 60:37-44
We report on the results of multi-epoch VLBI observations with VERA (VLBI Exploration of Radio Astrometry) of the 22 GHz H2O masers associated with the young stellar object SVS 13 in the NGC 1333 region. We have carried out phase-referencing VLBI ast
Autor:
Yuji Ueno, Masachika Kijima, Osamu Kameya, Noritomo Inomata, Seiji Manabe, Takumi Nagayama, Takaaki Jike, Kohichiro Nakashima, Chung Sik Oh, K. Horiai, Satoshi Sakai, Yukitoshi Kan-ya, Katsuhisa Sato, Tetsuo Sasao, Kazuyoshi Yamashita, Tomoharu Kurayama, Seisuke Kuji, Sei-ichiro Sakakibara, Noriyuki Kawaguchi, Yoshiaki Sofue, Mareki Honma, Yoon Kyung Choi, Akiharu Nakagawa, Kenzaburo Iwadate, Katsunori M. Shibata, Hideyuki Kobayashi, Miyuki Tsushima, Yoshiaki Tamura, Ryuichi Kamohara, Tomoya Hirota, Takeshi Miyaji, Tomoaki Oyama, Hiroshi Imai, Motonobu Shintani, Rie Shimizu, Hiroshi Suda, Takeshi Bushimata, Toshihiro Omodaka, Kasumi Sora
Publikováno v:
Publications of the Astronomical Society of Japan. 59:1107-1113
We report on results of multi-epoch VLBI observations of H2O masers associated with a low-mass young stellar object, IRAS 16293 2422 in Oph East, and a fringe-phase and position reference source, ICRF J162546.8 252738, using the VLBI Exploration of R
Autor:
Kenta Maruyama, Seisuke Kuji, Yoshiaki Tamura, Mayumi Sato, Akiharu Nakagawa, Ryuichi Kamohara, Katsunori M. Shibata, Seiji Manabe, Masachika Kijima, Hiroshi Imai, Motonobu Shintani, Katsuhisa Sato, Mi Kyoung Kim, Takeshi Miyaji, Tomoya Hirota, Chung Sik Oh, Yukitoshi Kan-ya, Takeshi Bushimata, Satoshi Sakai, Seiji Kameno, Osamu Kameya, Toshihiro Omodaka, Kayoko Nakamura, Tomoaki Oyama, Yoon Kyung Choi, Takumi Nagayama, Tomoharu Kurayama, Mareki Honma, Miyuki Tsushima, Makoto Matsui, Kenzaburo Iwadate, Hideyuki Kobayashi, Naoko Matsumoto, Kazuyoshi Yamashita, Noriyuki Kawaguchi, Takaaki Jike, Tetsuo Sasao
Publikováno v:
Publications of the Astronomical Society of Japan. 59:743-751
We report on absolute proper-motion measurements of an H2O maser source in the NGC 281 West molecular cloud, which is located ~320 pc above the Galactic plane and is associated with an HI loop extending from the Galactic plane. We have conducted mult
Autor:
Ryuichi Kamohara, Osamu Kameya, Tomoaki Oyama, Mareki Honma, Takaaki Jike, Hiroshi Suda, Kenzaburo Iwadate, Chung Sik Oh, Tetsuo Sasao, Yukitoshi Kan-ya, Tomoya Hirota, Takeshi Miyaji, Hiroshi Imai, K. Sato, Motonobu Shintani, Kazuyoshi Yamashita, Katsunori M. Shibata, Tomoharu Kurayama, Masachika Kijima, Seisuke Kuji, Yoon Kyung Choi, Miyuki Tsushima, Akiharu Nakagawa, Noriyuki Kawaguchi, Hideyuki Kobayashi, Takumi Nagayama, Satoshi Sakai, Seiji Manabe, Yoshiaki Tamura, Takeshi Bushimata, Toshihiro Omodaka
Publikováno v:
Proceedings of the International Astronomical Union. 3:361-365
We present results of astrometric observations of S269 H2O maser performed with VERA (VLBI Exploration of Radio Astrometry). We have monitored the positions of S269 H2O masers for 1 year and successfully detected its parallax to be 189±8 micro-arcse
Autor:
Hiroshi Imai, Chung Sik Oh, Satoshi Sakai, Yukitoshi Kan-ya, Tomoaki Oyama, Yoon Kyung Choi, José K. Ishitsuka, Kouichirou Nakashima, Seiji Manabe, Ryuichi Kamohara, Toshihiro Omodaka, Noriyuki Kawaguchi, Yoshiaki Tamura, Tomoya Hirota, Takahiro Fujii, Takeshi Miyaji, Osamu Kameya, Mareki Honma, Masachika Kijima, Seisuke Kuji, Katsuhisa Sato, K. Yamashita, Tetsuo Sasao, Takaaki Jike, Tomoharu Kurayama, Akiharu Nakagawa, Takeshi Bushimata, Kenzaburo Iwadate, K. Horiai, Hiroshi Suda, Noritomo Inomata, Kasumi Sora, Hideyuki Kobayashi, Katsunori M. Shibata, R. Shimizu, Maria Rioja
Publikováno v:
Publications of the Astronomical Society of Japan. 57:595-603
We report on multi-epoch observations of H2O maser emission in the star-forming region OH 43.8−0.1, carried out with VLBI Exploration of Radio Astrometry. The large-scale maser distributions obtained by single-beam VLBI mapping reveal new maser spo