A RESOLVED RING OF DEBRIS DUST AROUND THE SOLAR ANALOG HD 107146
A RESOLVED RING OF DEBRIS DUST AROUND THE SOLAR ANALOG HD 107146
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太阳能模拟 HD 107146 周围已分解的碎片灰尘环
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
D. Bock
中科院分区：
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作者：
S. Corder;J. Carpenter;A. Sargent;B. Zauderer;M. Wright;S. White;D. Woody;P. Teuben;S. Scott;M. Pound;R. Plambeck;J. Lamb;J. Koda;M. Hodges;D. Hawkins;D. Bock
我们提供了年轻（8 - 2亿年）太阳型星星HD 107146周围碎片盘的尘埃连续辐射的解析图像，CARMA在λ = 1.3 mm，CSO在λ = 350 μ。这两幅图像都显示，尘埃排放延伸到直径约10英寸的区域。高分辨率（3“）CARMA图像进一步揭示了尘埃在部分环中的分布，其通量在97 Au附近明显减小。两个突出的发射峰出现在位置角相隔140°的环内。尘埃的形态显示出尘埃被捕获到一个平均运动共振中，这意味着存在一颗轨道半径为45-75 Au的行星。
We present resolved images of the dust continuum emission from the debris disk around the young (80–200 Myr) solar-type star HD 107146 with CARMA at λ = 1.3 mm and the CSO at λ = 350 μ. Both images show that the dust emission extends over an approximately 10″ diameter region. The high-resolution (3″) CARMA image further reveals that the dust is distributed in a partial ring with significant decrease in a flux inward of 97 AU. Two prominent emission peaks appear within the ring separated by ∼140° in the position angle. The morphology of the dust emission is suggestive of dust captured into a mean motion resonance, which would imply the presence of a planet at an orbital radius of ∼45–75 AU.