Stellar Systems Group

Kotani, Takayuki; Tamura, Motohide; Nishikawa, Jun; Ueda, Akitoshi; Kuzuhara, Masayuki; Omiya, Masashi; Hashimoto, Jun; Ishizuka, Masato; Hirano, Teruyuki; Suto, Hiroshi; Kurokawa, Takashi; Kokubo, Tsukasa; Mori, Takahiro; Tanaka, Yosuke; Kashiwagi, Ken; Konishi, Mihoko; Kudo, Tomoyuki; Sato, Bun'ei; Jacobson, Shane; Hodapp, Klaus W.; Hall, Donald B.; Aoki, Wako; Usuda, Tomonori; Nishiyama, Shogo; Nakajima, Tadashi; Ikeda, Yuji; Yamamuro, Tomoyasu; Morino, Jun-Ichi; Baba, Haruka; Hosokawa, Ko; Ishikawa, Hiroyuki; Narita, Norio; Kokubo, Eiichiro; Hayano, Yutaka; Izumiura, Hideyuki; Kambe, Eiji; Kusakabe, Nobuhiko; Kwon, Jungmi; Ikoma, Masahiro; Hori, Yasunori; Genda, Hidenori; Fukui, Akihiko; Fujii, Yuka; Kawahara, Hajime; Olivier, Guyon; Jovanovic, Nemanja; Harakawa, Hiroki; Hayashi, Masahiko; Hidai, Masahide; Machida, Masahiro; Matsuo, Taro; Nagata, Tetsuya; Ogihara, Masahiro; Takami, Hideki; Takato, Naruhisa; Terada, Hiroshi; Oh, Daehyeon
Proceedings of the SPIE, Volume 10702, id. 1070211 11 pp. (2018).
07/2018

ABSTRACT

The Infrared Doppler (IRD) instrument is a fiber-fed high-resolution NIR spectrometer for the Subaru telescope covering the Y,J,H-bands simultaneously with a maximum spectral resolution of 70,000. The main purpose of IRD is a search for Earth-mass planets around nearby M-dwarfs by precise radial velocity measurements, as well as a spectroscopic characterization of exoplanet atmospheres. We report the current status of the instrument, which is undergoing commissioning at the Subaru Telescope, and the first light observation successfully done in August 2017. The general description of the instrument will be given including spectrometer optics, fiber injection system, cryogenic system, scrambler, and laser frequency comb. A large strategic survey mainly focused on late-type M-dwarfs is planned to start from 2019.