Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Tamura A"'
Autor:
Wako Aoki, Timothy C Beers, Satoshi Honda, Hiroyuki T Ishikawa, Tadafumi Matsuno, Vinicius M Placco, Jinmi Yoon, Hiroki Harakawa, Teruyuki Hirano, Klaus Hodapp, Masato Ishizuka, Shane Jacobson, Takayuki Kotani, Tomoyuki Kudo, Takashi Kurokawa, Masayuki Kuzuhara, Jun Nishikawa, Masashi Omiya, Takuma Serizawa, Motohide Tamura, Akitoshi Ueda, Sébastien Vievard
Publikováno v:
Publications of the Astronomical Society of Japan, 74(2), 273-282. Oxford University Press
Silicon and Strontium are key elements to explore the nucleosynthesis and chemical evolution of the Galaxy by measurements of very metal-poor stars. There are, however, only a few useful spectral lines of these elements in the optical range that are
Autor:
Hiroki Harakawa, Takuma Serizawa, Klaus W. Hodapp, Teruyuki Hirano, Motohide Tamura, Jun Nishikawa, Akitoshi Ueda, Masayuki Kuzuhara, Takashi Kurokawa, Mihoko Konishi, Takayuki Kotani, Eric Gaidos, Tomoyuki Kudo, Sébastien Vievard, Masato Ishizuka, Masashi Omiya, Shane Jacobson, Bun'ei Sato
Publikováno v:
Publications of the Astronomical Society of Japan. 72
Precision radial velocity (RV) measurements in the near-infrared are a powerful tool to detect and characterize exoplanets around low-mass stars or young stars with higher magnetic activity. However, the presence of strong telluric absorption lines a
Autor:
Yasuhiro Hashimoto, John D. Silverman, S. Ikarashi, Andreas Schulze, Takuma Izumi, H. Umehata, Nobunari Kashikawa, Tomotsugu Goto, Yuichi Harikane, Takeo Minezaki, Kotaro Kohno, Jenny E. Greene, Yoichi Tamura, Kazushi Iwasawa, Hikari Shirakata, Yuki Yamaguchi, Masatoshi Imanishi, Akio Taniguchi, Michael A. Strauss, Kouichiro Nakanishi, Yoshiki Toba, Seiji Fujimoto, Ryu Makiya, Chien-Hsiu Lee, Daisuke Iono, Yoshiki Matsuoka, M. Onoue, Tohru Nagao, Ji Jia Tang
Publikováno v:
Publications of the Astronomical Society of Japan. 70
We present our ALMA Cycle 4 measurements of the [CII] emission line and the underlying far-infrared (FIR) continuum emission from four optically low-luminosity ($M_{\rm 1450} > -25$) quasars at $z \gtrsim 6$ discovered by the Subaru Hyper Suprime Cam
Autor:
Tsuguru Ryu, Teruyuki Hirano, Motohide Tamura, Akihiko Fukui, Nobuhiko Kusakabe, Norio Narita, Masahiro Onitsuka
Publikováno v:
Publications of the Astronomical Society of Japan. 69
We present three-band simultaneous observations of a weak-line T-Tauri star CVSO~30 (PTFO~8-8695), which is one of the youngest objects having a candidate transiting planet. The data were obtained with the Multicolor Simultaneous Camera for studying
Autor:
Yoichi Tamura, Kotaro Kohno, Itziar Aretxaga, S. Onodera, Tsuyoshi Sawada, S. Komugi, Kouichiro Nakanishi, Thushara Perera, Hajime Ezawa, David H. Hughes, J. E. Austermann, Tomoka Tosaki, Ryohei Kawabe, K. Tanaka, G. W. Wilson, R. E. Miura, Nario Kuno, T. Tsukagoshi, Kazuyuki Muraoka, Kimberly S. Scott, F. Egusa, M. S. Yun
Publikováno v:
Publications of the Astronomical Society of Japan. 63:1139-1150
We present wide-field 1.1 mm continuum imaging of the nearby spiral galaxy M 33, conducted with the AzTEC bolometer camera on ASTE. We show that the 1.1 mm flux traces the distribution of dust with T ~20 K. Combined with far-infrared imaging at 160um
Autor:
Matthew J. Holman, Roberto Sanchis-Ojeda, Wako Aoki, Motohide Tamura, Teruyuki Hirano, Bun'ei Sato, Joshua N. Winn, Norio Narita
Publikováno v:
Prof. Winn via Mat Willmott
We report photometric and radial velocity observations of the XO-4 transiting planetary system, conducted with the FLWO 1.2 m telescope and the 8.2 m Subaru Telescope. Based on the new light curves, the refined transit ephemeris of XO-4b is $P$ $=$ 4
Autor:
Jun Hashimoto, Amaya Moro-Martin, Masayuki Kuzuhara, Naruhisa Takato, Lyu Abe, Edwin L. Turner, Michihiro Takami, Yasuhiro H. Takahashi, Tetsuo Nishimura, Yutaka Hayano, Shoken Miyama, Takuya Suenaga, Ryuji Suzuki, Markus Janson, Tomonori Usuda, Tae-Soo Pyo, Michael W. McElwain, Joseph C. Carson, Olivier Guyon, Motohide Tamura, Toru Yamada, Hiroshi Terada, Christian Thalmann, Miki Ishii, C. Bergfors, Hiroshi Suto, Wolfgang Brandner, Hideki Takami, Bun'ei Sato, Tomoyuki Kudo, Taro Matsuo, Jun-Ichi Morino, Masahiko Hayashi, Ryo Kandori, Norio Narita, Eugene Serabyn, Thomas Henning, Taras Golota, Makiko Nagasawa, Miwa Goto, Klaus W. Hodapp, Shigeru Ida, Saeko S. Hayashi, Sebastian Egner, Makoto Watanabe, Markus Feldt, Gillian R. Knapp, Daigo Tomono, Nobuhiko Kusakabe
Publikováno v:
Publications of the Astronomical Society of Japan. 62(3):779-786
We present results of direct imaging observations for HAT-P-7 taken with the Subaru HiCIAO and the Calar Alto AstraLux. Since the close-in transiting planet HAT-P-7b was reported to have a highly tilted orbit, massive bodies such as giant planets, br
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:
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.