Dr. Hiroki Harakawa Profile

Dr. Hiroki Harakawa

at National Astronomical Observatory of Japan

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Author

Publications (4)

Proceedings Article | 30 July 2024 Poster + Paper

GAOES-RV: a high-dispersion echelle spectrograph for radial velocimetry with the 3.8 m Seimei Telescope

Bun'ei Sato, Osamu Hashimoto, Masashi Omiya, Akito Tajitsu, Hideyuki Izumiura, Satoshi Honda, Kazuya Matsubayashi, Eiji Kambe, Takuya Takarada, Hiroki Harakawa, Norio Narita, Yasunori Hori, Masanobu Kunitomo, Yuya Hayashi

Proceedings Volume 13096, 1309644 (2024) https://doi.org/10.1117/12.3019538

KEYWORDS: Telescopes, Spectrographs, Stars, Observatories, Astronomical telescopes, Planets, Astronomy, Exoplanets, Velocimetry, Iodine

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Proceedings Article | 29 July 2024 Poster + Paper

Six-year progress of the InfraRed Doppler (IRD) instrument for the Subaru Telescope

Masayuki Kuzuhara, Takayuki Kotani, Motohide Tamura, Teruyuki Hirano, Bun'ei Sato, Masashi Omiya, Wako Aoki, Akihiko Fukui, Norio Narita, Stevanus Nugroho, Masaomi Tanaka, Hajime Kawahara, Hiroki Harakawa, Yui Kasagi, Tomoyuki Kudo, Sébastien Vievard, Takashi Kurokawa, Takuma Serizawa, Takuya Takrada, Jun Nishikawa, Akitoshi Ueda, Nobuhiko Kusakabe

Proceedings Volume 13096, 130962B (2024) https://doi.org/10.1117/12.3018629

KEYWORDS: Planets, Stars, Astronomy, Atmospheres, Exoplanets, Telescopes, Equipment, Spectroscopy, Infrared telescopes, Astrophysics

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Proceedings Article | 19 July 2024 Poster

Performance test for HIDES-F wavelength calibration using a laser frequency comb

Masashi Omiya, Hideyuki Izumiura, Yutaro Hosoi, Hajime Inaba, Sho Okubo, Bun'ei Sato, Eiji Kambe, Yuki Moritani, Hiroki Harakawa, Takuya Takarada

Proceedings Volume 13096, 130963Z (2024) https://doi.org/10.1117/12.3018603

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Proceedings Article | 18 July 2024 Poster + Paper

Assessing Earth’s atmospheric impact on near-infrared radial velocity measurements with IRD/Subaru

Yui Kasagi, Takayuki Kotani, Teruyuki Hirano, Masayuki Kuzuhara, Masashi Omiya, Takuya Takarada, Hiroki Harakawa, Tomoyuki Kudo, Jun Nishikawa, Motohide Tamura, Bun'ei Sato

Proceedings Volume 13096, 130962C (2024) https://doi.org/10.1117/12.3019372

KEYWORDS: Absorption, Stars, Transmittance, Velocity measurements, Contamination, Planets, Humidity, Earth atmosphere, Telescopes

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