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首页> 外文会议>Conference on Space Telescopes and Instrumentation >JASMINE:galactic structure surveyor
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JASMINE:galactic structure surveyor

机译：茉莉：银河结构测量师

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We introduce a Japanese plan of infrared(z-band:0.9μm) space astrometry(JASMINE-project). JASMINE is the satellite (Japan Astrometry Satellite Mission for INfrared Exploration) which will measure distances and apparent motions of stars around the center of the Milky Way with yet unprecedented precision. It will measure parallaxes, positions with the accuracy of 10 micro-arcsec and proper motions with the accuracy of ～4micro-arcsec/year for stars brighter than z=14mag. JASMINE can observe about ten million stars belonging to the bulge components of our Galaxy, which are hidden by the interstellar dust extinction in optical bands. Number of stars with σ/π < 0.1 in the direction of the Galactic central bulge is about 1000 times larger than those observed in optical bands, where π is a parallax and σ is an error of the parallax. With the completely new "map of the bulge in the Milky Way", it is expected that many new exciting scientific results will be obtained in various fields of astronomy. Presently, JASMINE is in a development phase, with a target launch date around 2015. We adopt the following instrument design of JASMINE in order to get the accurate positions of many stars. A 3-mirrors optical system(modified Korsch system)with a primary mirror of ～0.85m is one of the candidate for the optical system. On the astro-focal plane, we put dozens of new type of CCDs for z-band to get a wide field of view. The accurate measurements of the astrometric parameters requires the instrument line-of-sight highly stability and the opto-mechanical highly stability of the payload in the JASMINE spacecraft. The consideration of overall system(bus) design is now going on in cooperation with Japan Aerospace Exploration Agency(JAXA).
机译：我们介绍了日本红外线（Z频段：0.9μm）空间天空测量（Jasmine-Project）。 Jasmine是卫星（日本Astromicry卫星使命的红外探索），它将测量银河系中的距离和明显的运动，以前所未有的精确度。它将测量视差，具有10微弧度的精度和具有比Z = 14mag的恒定〜4micro-Arcsec /年的精度的精度的定位和适当的运动。 Jasmine可以观察到一百万颗恒星属于我们的银河系的凸起部件，这些恒星隐藏在光学频带中的星际尘埃灭火。 Σ/π<0.1在银河中心凸起方向上的恒星比在光带中观察到的大约1000倍，其中π是视差，σ是视差的误差。随着全新的“隆隆地图”，预计将在各个天文领域获得许多新的令人兴奋的科学结果。目前，Jasmine在开发阶段，2015年左右的目标发射日期。我们采用以下茉莉花仪器设计，以获得许多恒星的准确职位。具有〜0.85M的主镜的3镜光学系统（改进的Korsch系统）是光学系统的候选者之一。在Astro-Focal平面上，我们为z波段提供了几十个新型CCD，以获得广泛的视野。 Astromic参数的精确测量要求仪器视线高度稳定性和茉莉航天器中有效载荷的光机械高度稳定性。对整体系统（公共汽车）设计的思考现已与日本航天勘探机构（JAXA）合作进行。

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