Mr. Masato Ishizuka Profile

Masato Ishizuka

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Publications (5)

Proceedings Article | 21 December 2020 Poster + Paper

Extremely high-contrast, high spectral resolution spectrometer REACH for the Subaru Telescope

T. Kotani, H. Kawahara, M. Ishizuka, N. Jovanovic, S. Vievard, J. Lozi, A. Sahoo, O. Guyon, K. Yoneta, M. Tamura

Proceedings Volume 11448, 1144878 (2020) https://doi.org/10.1117/12.2561755

KEYWORDS: Spectral resolution, Telescopes, Single mode fibers, Adaptive optics, Speckle, Spectrographs, Atmospheric optics, Infrared telescopes, Coronagraphy, Near infrared

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Proceedings Article | 13 December 2020 Presentation + Paper

Constraining orbits and masses of stellar companions with SCExAO imaging and REACH spectroscopy

Ananya Sahoo, Julien Lozi, Sebastien Vievard, Olivier Guyon, Takayuki Kotani, Hajime Kawahara, Nemanja Jovanovic, Vincent Deo, Masato Ishizuka

Proceedings Volume 11448, 1144809 (2020) https://doi.org/10.1117/12.2563133

KEYWORDS: Stars, Imaging systems, Satellite imaging, Satellites, Deformable mirrors, Modulation, Atmospheric optics, Imaging spectroscopy, Velocity measurements, Spectroscopy

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Proceedings Article | 13 July 2018 Paper

The infrared Doppler (IRD) instrument for the Subaru telescope: instrument description and commissioning results

Takayuki Kotani, Motohide Tamura, Jun Nishikawa, Akitoshi Ueda, Masayuki Kuzuhara, Masashi Omiya, Jun Hashimoto, Masato Ishizuka, Teruyuki Hirano, Hiroshi Suto, Takashi Kurokawa, Tsukasa Kokubo, Takahiro Mori, Yosuke Tanaka, Ken Kashiwagi, Mihoko Konishi, Tomoyuki Kudo, Bun'ei Sato, Shane Jacobson, Klaus Hodapp, Donald Hall, Wako Aoki, Tomonori Usuda, Shogo Nishiyama, Tadashi Nakajima, Yuji Ikeda, Tomoyasu Yamamuro, Jun-Ichi Morino, Haruka Baba, Ko Hosokawa, Hiroyuki Ishikawa, Norio Narita, Eiichiro Kokubo, Yutaka Hayano, Hideyuki Izumiura, Eiji Kambe, Nobuhiko Kusakabe, Jungmi Kwon, Masahiro Ikoma, Yasunori Hori, Hidenori Genda, Akihiko Fukui, Yuka Fujii, Hajime Kawahara, Guyon Olivier, Nemanja Jovanovic, Hiroki Harakawa, Masahiko Hayashi, Masahide Hidai, Masahiro Machida, Taro Matsuo, Tetsuya Nagata, Masahiro Ogihara, Hideki Takami, Naruhisa Takato, Hiroshi Terada, Daehyeon Oh

Proceedings Volume 10702, 1070211 (2018) https://doi.org/10.1117/12.2311836

KEYWORDS: Stars, Spectroscopy, Telescopes, Sensors, Cameras, Error analysis, Mirrors, Infrared telescopes, Frequency combs, Adaptive optics

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Proceedings Article | 12 July 2018 Paper

Performance tests of Subaru/IRD for very precise and stable infrared radial velocity observations

Masayuki Kuzuhara, Teruyuki Hirano, Takayuki Kotani, Masato Ishizuka, Masashi Omiya, Mihoko Konishi, Tomoyuki Kudo, Jun Nishikawa, Akitoshi Ueda, Ko Hosokawa, Nobuhiko Kusakabe, Takashi Kurokawa, Tsukasa Kokubo, Takahiro Mori, Yosuke Tanaka, Shane Jacobson, Klaus Hodapp, Motohide Tamura

Proceedings Volume 10702, 1070260 (2018) https://doi.org/10.1117/12.2311832

KEYWORDS: Stars, Single mode fibers, Velocity measurements, Calibration, Polarization, Spectroscopy, Lamps, Planets

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Proceedings Article | 12 August 2016 Paper

Fiber mode scrambler experiments for the Subaru Infrared Doppler Instrument (IRD)

M. Ishizuka, T. Kotani, J. Nishikawa, M. Tamura, T. Kurokawa, T. Mori, T. Kokubo

Proceedings Volume 9912, 99121Q (2016) https://doi.org/10.1117/12.2232166

KEYWORDS: Planets, Doppler effect, Frequency combs, Optical fibers, Near infrared, Telescopes, Single mode fibers, Infrared radiation, Spectrographs, Precision measurement

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