Asteroid Catalog Using AKARI: AKARI/IRC Mid-Infrared Asteroid Survey
Asteroid Catalog Using AKARI: AKARI/IRC Mid-Infrared Asteroid Survey
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DOI：
10.1093/pasj/63.5.1117
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发表时间：
2011-10
影响因子：
2.3
通讯作者：
F. Usui;D. Kuroda;T. Müller;S. Hasegawa;M. Ishiguro;T. Ootsubo;D. Ishihara;H. Kataza;S. Takita;S. Oyabu;M. Ueno;H. Matsuhara;T. Onaka
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作者：
F. Usui;D. Kuroda;T. Müller;S. Hasegawa;M. Ishiguro;T. Ootsubo;D. Ishihara;H. Kataza;S. Takita;S. Oyabu;M. Ueno;H. Matsuhara;T. Onaka
我们提出了一个公正的小行星调查的结果，在中红外波长与红外相机（IRC）机载日本红外卫星AKARI。在AKARI全天巡天观测中记录的点源事件中，约有20%没有用于IRC点源目录（IRCPSC）的制作过程中，因为缺乏按位置进行的多次探测。小行星是在天球上移动的物体，它们留在这些“残留事件”中。我们通过将它们与已知小行星的位置相匹配来识别出剩余事件中的小行星。对于已识别的小行星，我们根据标准热模型计算了它们的大小和轨道。最后，我们有一个全新的小行星目录，名为Akari小行星目录（AcuA），其中包含5，120个天体，大约是IRAS小行星目录的两倍。目录中的天体包括4，953颗主带小行星，58颗近地小行星和109颗木星特洛伊小行星。该目录将通过互联网公开提供。
We present the results of an unbiased asteroid survey in the mid-infrared wavelength with the Infrared Camera (IRC) onboard the Japanese infrared satellite AKARI. About 20% of the point source events recorded in the AKARI All-Sky Survey observations are not used for the IRC Point Source Catalog (IRCPSC) in its production process because of the lack of multiple detection by position. Asteroids, which are moving objects on the celestial sphere, remain in these “residual events”. We identify asteroids out of the residual events by matching them with the positions of known asteroids. For the identified asteroids, we calculate the size and albedo based on the Standard Thermal Model. Finally we have a brand-new catalog of asteroids, named the Asteroid Catalog Using Akari (AcuA), which contains 5,120 objects, about twice as many as the IRAS asteroid catalog. The catalog objects comprise 4,953 main belt asteroids, 58 near Earth asteroids, and 109 Jovian Trojan asteroids. The catalog will be publicly available via the Internet.