Extra-solar planets exploration using frequency comb: Infrared Doppler instrument for the Subaru telescope (IRD)

被引:0
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作者
Tamura, Motohide [1 ]
Kotani, Takayuki [1 ]
Nishikawa, Jun [1 ,2 ]
Kurokawa, Takashi [1 ,4 ]
Kashiwagi, Ken [4 ]
Suto, Hiroshi [1 ]
Sato, Bun'ei [3 ]
Aoki, Wak [1 ,2 ]
Usuda, Tomonori [1 ,2 ]
Nishiyama, Shogo [5 ]
Ikeda, Yuji [6 ]
Hall, Donald B. [7 ]
Hodapp, Klaus W. [7 ]
Jacobson, Shane [7 ]
Morino, Jun-Ichi
Okuyama, Yasushi [4 ]
Tanaka, Yoichi [4 ]
Suzuki, Shoya [4 ]
Inoue, Sadahiro [4 ]
Kwon, Jungmi
Oh, Dehyun [2 ]
Baba, Haruka [1 ,2 ]
Hashimoto, Jun [8 ]
Kudo, Tomoyuki [9 ]
Kusakabe, Nobuhiko [1 ]
Omiya, Masashi [1 ]
Yamamuro, Tomoyasu [10 ]
机构
[1] Univ Tokyo, Tokyo 1130033, Japan
[2] Natl Astron Observ Japan, Mitaka, Tokyo 1818588, Japan
[3] GUAS, Mitaka, Tokyo 1818588, Japan
[4] Tokyo Inst Technol, Meguro Ku, Tokyo 1528550, Japan
[5] Tokyo Univ Agr & Technol, Koganei, Tokyo 1848588, Japan
[6] Miyagi Univ Educ, Aoba Ku, Sendai, Miyagi 9800845, Japan
[7] Photocoding, Sakyo Ku, Kyoto 6060025, Japan
[8] Univ Hawaii, Inst Astron, Hilo, HI 96720 USA
[9] Univ Oklahoma, Norman, OK 73019 USA
[10] Subaru Telescope, Hilo, HI 96720 USA
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中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Because of their large numbers, red dwarfs may be the most abundant planet hosts in our Galaxy. In order to detect Earth-like planets around nearby red dwarfs (in particular late-M stars), it is crucial to conduct the precise radial velocity (RV) measurements at near-infrared wavelengths where these stars emit most of light. We report the development of the Infrared Doppler (IRD) spectrometer for the Subaru telescope. IRD is a fiber-fed, high-precision, near infrared spectrometer with a spectral resolution of R similar to 70,000 covering from 0.97 to 1.75 mu m. To achieve 1m/s RV measurement precision, we employ our original laser frequency comb of a wide wavelength coverage as an extremely stable wavelength standard in the near-infrared. The spectrometer optics is composed of a new wide-pitch Echelle-grating and Volume-Phase Holographic gratings. To achieve ultimate thermal stability, very low thermal expansion ceramic is used for most of the optical components including the optical bench. The spectrometer will utilize a 4096x4096-pixel HgCdTe array,
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页数:3
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