Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Ryuichi Kamohara"'
Autor:
Makoto Matsui, Tomoharu Kurayama, Mareki Honma, Hideyuki Kobayashi, Hiroshi Imai, Kenzaburo Iwadate, Yoshiaki Sofue, Takeshi Miyaji, Daisuke Nyu, Ryuichi Kamohara, Katsunori M. Shibata, Tomoya Hirota, Toshihiro Omodaka, Akiharu Nakagawa
Publikováno v:
Publications of the Astronomical Society of Japan. 63:63-70
We report on the results of astrometric observations of H2O masers toward a Mira variable, SY Sculptoris (SY Scl), with the VLBI Exploration of Radio Astrometry (VERA) from 2006 October to 2008 October. We determined that SY Scl’s annual parallax i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65a40e6d446788be6cff5a97a296fcde
https://doi.org/10.1093/pasj/63.1.63
https://doi.org/10.1093/pasj/63.1.63
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1159bbc6aacd6da2d82f760302dcf58a
https://doi.org/10.1093/pasj/60.5.1013
https://doi.org/10.1093/pasj/60.5.1013
Autor:
Toshihisa Maeda, Hiroshi Imai, Naoko Matsumoto, Toshihiro Omodaka, Ryuichi Kamohara, Kosuke Ueda, Shuji Deguchi
Publikováno v:
Publications of the Astronomical Society of Japan. 60:1051-1056
We present two-epoch maps of SiO masers (v = 1a ndv = 2, J = 1–0) associated with the M-type star IRC � 10414, which were obtained with the Japanese VLBI Network (JVN). The spatial and Doppler velocity distributions, and the intensity ratio of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7a1fa608faf7ebb3f38271e58b4a93f
https://doi.org/10.1093/pasj/60.5.1051
https://doi.org/10.1093/pasj/60.5.1051
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb70d2b9e8ba7c1cdb0245a75468976a
https://doi.org/10.1093/pasj/60.5.1007
https://doi.org/10.1093/pasj/60.5.1007
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2be03c9d884131f9aa405d1974ca549a
https://doi.org/10.1093/pasj/60.5.1023
https://doi.org/10.1093/pasj/60.5.1023
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-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5fd4d8ed30476d484dc4e2fb99ffdc6
https://doi.org/10.1093/pasj/60.5.935
https://doi.org/10.1093/pasj/60.5.935
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15e26437144b6f90ca3c2c848dfe0f0c
https://doi.org/10.1093/pasj/60.5.991
https://doi.org/10.1093/pasj/60.5.991
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.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0cd72926e40b3bb75f6510b8140d3d9
https://doi.org/10.1093/pasj/60.5.1039
https://doi.org/10.1093/pasj/60.5.1039
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76e804e3e7e59c05c1f3b60cd8139460
https://doi.org/10.1093/pasj/60.5.1057
https://doi.org/10.1093/pasj/60.5.1057
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20ba68538697b0fec18aef4e3174f77c
https://doi.org/10.1093/pasj/60.1.37
https://doi.org/10.1093/pasj/60.1.37