Brightness map of the zodiacal emission from the AKARI IRC All-Sky Survey
Brightness map of the zodiacal emission from the AKARI IRC All-Sky Survey
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AKARI IRC 全天巡天的黄道发射亮度图
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
T. Mukai
中科院分区：
文献类型：
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作者：
J. Pyo;M. Ueno;S. Kwon;S. Hong;D. Ishihara;M. Ishiguro;F. Usui;T. Ootsubo;T. Mukai
日本第一次红外空间使命AKARI飞行任务成功地用其两个主要仪器-红外照相机和远红外探测器-扫描了整个天空。AKARI全天巡天为我们提供了一个宝贵的机会，可以检查整个天空中地球运动的领先方向和尾随方向的黄道辐射（ZE）。本文描述了我们在9 μm波段对AKARI观测的ZE亮度图进行缩减的努力。与Kelsall等人（1998）的行星际尘埃云模型相比，该图要求共振环分量对ZE亮度的贡献增加约20%。我们特别注意了黄道南北两极的亮度。对称面的倾角和升交点的经度需要从Kelsall等人（1998）中修改，以达到与观测到的极点亮度差的最佳拟合。
The first Japanese infrared space mission AKARI successfully scanned the whole sky with its two main instruments, the Infrared Camera (IRC) and the Far-Infrared Surveyor (FIS). The AKARI All-Sky Survey provides us with an invaluable opportunity to examine the zodiacal emission (ZE) over the entire sky in the leading as well as the trailing direction of the Earth’s motion. We describe our efforts to reduce the ZE brightness map from the AKARI’s survey in the 9 μm waveband. Compared with the interplanetary dust cloud model of Kelsall et al. (1998), the map requires an increase of the contribution of the resonance ring component to the ZE brightness by about 20%. We paid special attention to the north and south ecliptic pole brightnesses. The symmetry plane’s inclination and longitude of ascending node need to be modified from those in Kelsall et al. (1998) to reach a best fit to the observed pole brightness difference.