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Development of a near-infrared high-resolution spectrograph (WINERED) for a survey of bulge stars

Published online by Cambridge University Press:  01 October 2007

T. Tsujimoto ,
N. Kobayashi ,
C. Yasui ,
S. Kondo ,
A. Minami ,
K. Motohara ,
Y. Ikeda  and
N. Gouda
T. Tsujimoto
Affiliation:
National Astronomical Observatory, Mitaka, Tokyo 181-8588, Japan email: taku.tsujimoto@nao.ac.jp
N. Kobayashi
Affiliation:
Institute of Astronomy, University of Tokyo, Mitaka, Tokyo 181-0015, Japan
C. Yasui
Affiliation:
Institute of Astronomy, University of Tokyo, Mitaka, Tokyo 181-0015, Japan
S. Kondo
Affiliation:
Institute of Astronomy, University of Tokyo, Mitaka, Tokyo 181-0015, Japan
A. Minami
Affiliation:
Institute of Astronomy, University of Tokyo, Mitaka, Tokyo 181-0015, Japan
K. Motohara
Affiliation:
Institute of Astronomy, University of Tokyo, Mitaka, Tokyo 181-0015, Japan
Y. Ikeda
Affiliation:
Photocoding, Sagamihara, Kanagawa 229-1104, Japan
N. Gouda
Affiliation:
National Astronomical Observatory, Mitaka, Tokyo 181-8588, Japan email: taku.tsujimoto@nao.ac.jp
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Abstract

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We are developing a new near-infrared high-resolution (R[max] = 100,000) and high-sensitive spectrograph WINERED, which is specifically customized for short NIR bands at 0.9–1.35 μm. WINERED employs an innovative optical system; a portable design and a warm optics without any cold stops. The planned astrometric space mission JASMINE will provide precise positions, distances, and proper motions of the bulge stars. The missing components, the radial velocity and chemical composition will be measured by WINERED. These combined data brought by JASMINE and WINERED will certainly reveal the nature of the Galactic bulge. We plan to complete this instrument for observations of single objects by the end of 2008 and to attach it to various 4–10m telescopes as a PI-type instrument. We hope to upgrade WINERED with a multi-object feed in the future for efficient survey of the JASMINE bulge stars.

Keywords

Galaxy: bulgeinfrared: starsstars: abundancesstars: atmospheresinstrumentation: spectrographstechniques: spectroscopictechniques: radial velocities
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S248: A Giant Step: from Milli- to Micro-arcsecond Astrometry , October 2007 , pp. 510 - 511
Copyright
Copyright © International Astronomical Union 2008

References

Ikeda, Y., et al. 2006, SPIE, 6269, 62693TGoogle Scholar
Kondo, S., et al. 2006, SPIE, 6269, 62694OGoogle Scholar
Kuzmenko, P. 2006, SPIE, 6273, 62733SGoogle Scholar
Yasui, C., et al. 2006, SPIE, 6269, 62694PGoogle Scholar