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Space Astrometry JASMINE

Published online by Cambridge University Press:  01 October 2007

T. Yano ,
N. Gouda ,
Y. Kobayashi ,
Y. Yamada ,
T. Tsujimoto ,
M. Suganuma ,
Y. Niwa  and
M. Yamauchi
T. Yano
Affiliation:
National Astronomical Observatory, Mitaka, Tokyo 181-8588, Japan email: yano.t@nao.ac.jp, naoteru.gouda@nao.ac.jp, yuki@merope.mtk.nao.ac.jp, taku.tsujimoto@nao.ac.jp, suganuma@merope.mtk.nao.ac.jp, kazin.niwa@nao.ac.jp
N. Gouda
Affiliation:
National Astronomical Observatory, Mitaka, Tokyo 181-8588, Japan email: yano.t@nao.ac.jp, naoteru.gouda@nao.ac.jp, yuki@merope.mtk.nao.ac.jp, taku.tsujimoto@nao.ac.jp, suganuma@merope.mtk.nao.ac.jp, kazin.niwa@nao.ac.jp
Y. Kobayashi
Affiliation:
National Astronomical Observatory, Mitaka, Tokyo 181-8588, Japan email: yano.t@nao.ac.jp, naoteru.gouda@nao.ac.jp, yuki@merope.mtk.nao.ac.jp, taku.tsujimoto@nao.ac.jp, suganuma@merope.mtk.nao.ac.jp, kazin.niwa@nao.ac.jp
Y. Yamada
Affiliation:
Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan email: yamada@scphys.kyoto-u.ac.jp
T. Tsujimoto
Affiliation:
National Astronomical Observatory, Mitaka, Tokyo 181-8588, Japan email: yano.t@nao.ac.jp, naoteru.gouda@nao.ac.jp, yuki@merope.mtk.nao.ac.jp, taku.tsujimoto@nao.ac.jp, suganuma@merope.mtk.nao.ac.jp, kazin.niwa@nao.ac.jp
M. Suganuma
Affiliation:
National Astronomical Observatory, Mitaka, Tokyo 181-8588, Japan email: yano.t@nao.ac.jp, naoteru.gouda@nao.ac.jp, yuki@merope.mtk.nao.ac.jp, taku.tsujimoto@nao.ac.jp, suganuma@merope.mtk.nao.ac.jp, kazin.niwa@nao.ac.jp
Y. Niwa
Affiliation:
National Astronomical Observatory, Mitaka, Tokyo 181-8588, Japan email: yano.t@nao.ac.jp, naoteru.gouda@nao.ac.jp, yuki@merope.mtk.nao.ac.jp, taku.tsujimoto@nao.ac.jp, suganuma@merope.mtk.nao.ac.jp, kazin.niwa@nao.ac.jp
M. Yamauchi
Affiliation:
Department of Astronomy, School of Science, University of Tokyo, Tokyo 113-0033, Japan email: yamauchi@merope.mtk.nao.ac.jp
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Abstract

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JASMINE is the acronym of the Japan Astrometry Satellite Mission for INfrared (z-band: 0.9 micron) Exploration, and is planned to be launched around 2017. The main objective of JASMINE is to study the fundamental structure and evolution of the Milky Way bulge components. In order to accomplish these objectives, JASMINE will measure trigonometric parallaxes, positions and proper motions of about ten million stars in the Galactic bulge with a precision of 10 microarcsec at z = 14mag.

The primary mirror for the telescope has a diameter of 75cm with a focal length of 22.5m. The back-illuminated CCD is fabricated on a 300 micron thick substrate which is fully depleted. These thick devices have extended near infrared response. The size of the detector for z-band is 3cm×3cm with 2048×2048 pixels. The size of the field of view is about 0.6deg×0.6deg by using 64 detectors on the focal plane. The telescope is designed to have only one field of view, which is different from the designs of other astrometric satellites. JASMINE will observe overlapping fields without gaps to survey a total area of about 20deg×10 deg around the Galactic bulge. Accordingly we make a “large frame” of 20deg×10 deg by linking the small frames using stars in overlapping regions. JASMINE will observe the Galactic bulge repeatedly during the mission life of about 5 years.

Keywords

space vehiclesastrometryGalaxy: bulge
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. 296 - 297
Copyright
Copyright © International Astronomical Union 2008

References

Yano, Taihei, Gouda, Naoteru, Kobayashi, Yukiyasu, Tsujimoto, Takuji, Nakajima, Tadashi, Hanada, Hideo, Kan-ya, Yukitoshi, Yamada, Yoshiyuki, Araki, Hiroshi, Tazawa, Seiichi, Asari, Kazuyoshi, Tsuruta, Seiitsu, & Kawano, Nobuyuki 2004, PASP, 116, 667CrossRefGoogle Scholar
Yano, Taihei, Araki, Hiroshi, Gouda, Naoteru, Kobayashi, Yukiyasu, Tsujimoto, Takuji, Nakajima, Tadashi, Kawano, Nobuyuki, Tazawa, Seiichi, Yamada, Yoshiyuki, Hanada, Hideo, Asari, Kazuyoshi, & Tsuruta, Seiitsu 2006, PASP, 118, 1448CrossRefGoogle Scholar