Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Tamura A"'
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
Autor:
Takaaki Jike, Katsunori M. Shibata, Tomoya Hirota, Mi Kyoung Kim, Toshihiro Omodaka, Hideyuki Kobayashi, Mareki Honma, Takumi Nagayama, Akiharu Nakagawa, Tomoaki Oyama, Daisuke Sakai, Yoshiaki Tamura
Publikováno v:
Publications of the Astronomical Society of Japan. 72
Very Long Baseline Interferometry (VLBI) astrometry using the phase-referencing technique remains an open issue for the quantitative characterization of the observing conditions to achieve a feasible parallax precision of 10 micro-arcseconds (μas).
Autor:
Takumi Nagayama, Yoshiaki Tamura, Atsushi Morita, Tomoharu Kurayama, Mareki Honma, Toshihiro Omodaka, Akiharu Nakagawa, Katsunori M. Shibata, Yuji Ueno, Masako Matsuno, Takaaki Jike
Publikováno v:
Publications of the Astronomical Society of Japan. 72
We report the results of astrometric VLBI observations toward the Mira variable star BX Cam using the VERA VLBI array. The observation was performed from 2012 February to 2014 November. The parallax obtained is 1.73 ± 0.03 mas corresponding to a dis
Publikováno v:
Publications of the Astronomical Society of Japan. 71
With the Atacama Large Millimeter/sub-millimeter Array (ALMA), we report detections of the far-infrared (FIR) [OIII] 88 $\mu$m line and the underlying dust continuum in the two quasars in the reionization epoch, J205406.48-000514.8 (hereafter J2054-0
Autor:
Chiaki Hikage, Masayuki Tanaka, Jean Coupon, Ikuyuki Mitsuishi, Yen-Ting Lin, Masamune Oguri, Atsushi J. Nishizawa, Akio Hoshino, Kazuhiro Nakazawa, Motokazu Takizawa, Surhud More, Keita Miyaoka, Takashi Hamana, Alexie Leauthaud, Hironao Miyatake, Yasunori Babazaki, Hiroki Akamatsu, I. Non Chiu, Keiichi Umetsu, Yousuke Utsumi, Shutaro Ueda, Kyoko Matsushita, Naomi Ota, Takao Kitaguchi, Yuto Ichinohe, Kousuke Sato, Elinor Medezinski, David N. Spergel, Nobuhiro Okabe, Toru Sasaki, Yutaka Komiyama, Satoshi Miyazaki, Yasushi Fukazawa, Yutaka Fujita, Takayuki Tamura, Rachel Mandelbaum, Manobu M. Tanaka
Publikováno v:
Publications of the Astronomical Society of Japan. 70
Publikováno v:
Publications of the Astronomical Society of Japan. 63:S531-S536
We report the detection of the Rossiter-McLaughlin effect for the eccentric, super-Neptune exoplanet HAT-P-11b, based on radial velocity measurements taken with HDS mounted on the Subaru 8.2m telescope, and simultaneous photometry with the FTN 2.0m t
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:
Gavin Dalton, Peter Gillingham, Masanao Sumiyoshi, Naoyuki Tamura, Junichi Noumaru, Alan R. Holmes, Yuuki Moritani, Scott Smedley, Roger Haynes, Brian Elms, Norio Ohshima, Fumihide Iwamuro, Graham J. Murray, Shigeru Eto, Nigel Dipper, Greg C. Smith, Philip J. Tait, Gabriella Frost, Guy F.W. Woodhouse, Masayuki Akiyama, Kouji Ohta, David J. Robertson, Tim R. Froud, Anna M. Moore, Daisaku Mochida, Masahiko Kimura, Rolf Müller, Kaori Kawate, Hanshin Lee, Emma Curtis Lake, Tony Farrell, Toshinori Maihara, Ray M. Sharples, D. G. Bonfield, Ian Lewis, Tomio Kurakami, Naruhisa Takato, Charles B. Brooks, Kiyoto Yabe, Ian Tosh, Colin Blackburn, Jurek Brzeski
Publikováno v:
Scopus-Elsevier
ResearcherID
ResearcherID
Fibre Multi-Object Spectrograph (FMOS) is the first near-infrared instrument with a wide field of view capable of acquiring spectra simultaneously from up to 400 objects. It has been developed as a common-use instrument for the F=2 prime-focus of the
Autor:
Eri Kato, Hiroshi Shibai, Tomoyuki Kudo, Y. Itoh, Saeko S. Hayashi, Masahiko Hayashi, Yoichi Itoh, Yumiko Oasa, Motohide Tamura, Misato Fukagawa, Takafumi Ootsubo
Publikováno v:
Publications of the Astronomical Society of Japan. 62:347-370
We report results of H -band (� = 1.65 � m) imaging observations of young intermediate-mass stars using the Subaru 8.2-m Telescope with the adaptive optics AO36 and the infrared coronagraph CIAO. The targets consist of 16 Herbig Ae/Be stars (15 H
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