Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Yukitoshi Kan-ya"'
Autor:
Tomoharu Kurayama, Tomoya Hirota, Yukitoshi Kan-ya, Yuuki Adachi, Mareki Honma, Takumi Nagayama, Yoshiaki Tamura
Publikováno v:
Publications of the Astronomical Society of Japan. 72
We present the VEra Data Analyzer (VEDA) software package for Very Long Baseline Interferometry (VLBI) phase-referencing observations and parallax measurements. The Japanese VLBI project VLBI Exploration of Radio Astrometry (VERA) provides high-preci
Publikováno v:
Journal of The Korean Astronomical Society. 43:41-54
We report relative proper motion measurements of H₂O masers in massive star-forming region W51 Main, based on data sets of VLBI observations for H₂O masers at 22 ㎓ with Japanese VERA telescopes from 2003 to 2006. Data reductions and single-beam
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:
Katsunori M. Shibata, Akiharu Nakagawa, Naoko Matsumoto, Tomoharu Kurayama, Tomoya Hirota, Ryuichi Kamohara, Tetsuo Sasao, Toshihiro Omodaka, Takeshi Miyaji, Hiroshi Imai, Takeshi Bushimata, Osamu Kameya, Yoon Kyung Choi, Takaaki Jike, Mareki Honma, Tomoaki Oyama, Mi Kyoung Kim, Katsuhisa Sato, Takumi Nagayama, Kazuyoshi Yamashita, Satoshi Sakai, Seiji Kameno, Seisuke Kuji, Mayumi Sato, Yukitoshi Kan-ya, Seiji Manabe, Noriyuki Kawaguchi, Makoto Matsui, Chung Sik Oh, Hideyuki Kobayashi, Yoshiaki Tamura, Kenzaburo Iwadate
Publikováno v:
Publications of the Astronomical Society of Japan. 60:991-999
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:
Tomoharu Kurayama, Rie Shimizu, Mareki Honma, Hiroshi Suda, Kasumi Sora, Chung Sik Oh, Yukitoshi Kan-ya, Kenzaburo Iwadate, Yoshiaki Sofue, Katsunori M. Shibata, Ryuichi Kamohara, Takeshi Miyaji, Toshihiro Omodaka, Kazuyoshi Yamashita, Toshihisa Maeda, Tomoya Hirota, Tetsuo Sasao, Yoshiaki Tamura, Tomoaki Oyama, Seisuke Kuji, Osamu Kameya, Seiji Manabe, Noritomo Inomata, Takeshi Bushimata, Akiharu Nakagawa, Takumi Nagayama, Noriyuki Kawaguchi, Hideyuki Kobayashi, Hiroshi Imai, Naoko Matsumoto, Motonobu Shintani, Koichiro Nakashima, Sei-ichiro Sakakibara, Yoon Kyung Choi, Takaaki Jike, Seiji Kameno, Miyuki Tsushima, Satoshi Sakai, Katsuhisa Sato
Publikováno v:
Publications of the Astronomical Society of Japan. 60:1039-1050
We observed the SiO (v = 1 and v = 2, J = 1–0) maser emissions toward the Mira variable IK Tauri (IK Tau, NML Tau, IRC +10050) over nine epochs from 2003 November to 2005 April using the VLBI Exploration of Radio Astrometry (VERA) telescope array.
Autor:
Seiji Manabe, Satoshi Sakai, Akiharu Nakagawa, Katsunori M. Shibata, Kazuyoshi Yamashita, Hiroshi Imai, Seisuke Kuji, Tomoharu Kurayama, Tomoya Hirota, Mareki Honma, Yoshiaki Tamura, Motonobu Shintani, Takeshi Bushimata, Kenzaburo Iwadate, Ryuichi Kamohara, Noritomo Inomata, Osamu Kameya, Takaaki Jike, Sei-ichiro Sakakibara, K. Horiai, Tomoaki Oyama, Hideyuki Kobayashi, Takumi Nagayama, Yoon Kyung Choi, Seiji Kameno, Noriyuki Kawaguchi, Toshihiro Omodaka, Chung Sik Oh, Yukitoshi Kan-ya, Toshihisa Maeda, Kouichiro Nakashima, Kasumi Sora, Takeshi Miyaji, Rie Shimizu, Hiroshi Suda, Katsuhisa Sato
Publikováno v:
Publications of the Astronomical Society of Japan. 60:1057-1067
We report on results of five-epoch VLBI observations of H2O maser emission in the M-type star IRC � 10414, carried out with the VLBI Exploration of Radio Astrometry (VERA). The maser distribution extends over an area of 70 mas � 260 mas and exhib
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