Disks around the Young Stars TW Hydrae and HD 100546 Imaged at 3.4 Millimeters with the Australia Telescope Compact Array
Disks around the Young Stars TW Hydrae and HD 100546 Imaged at 3.4 Millimeters with the Australia Telescope Compact Array
复制标题
使用澳大利亚望远镜紧凑阵列在 3.4 毫米处成像的年轻恒星 TW Hydrae 和 HD 100546 周围的圆盘
DOI：
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
C. Atnf
中科院分区：
文献类型：
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作者：
D. Wilner;T. Bourke;C. Wright;J. Jørgensen;E. V. Dishoeck;T. W. H. CfA;Adfa;L. Observatory;C. Atnf
本文介绍了澳大利亚望远镜紧凑阵列在89 GHz下对年轻恒星TW Hya和HD 100546的观测结果，分辨率为~ 2“，连续灵敏度为~3 mJy。从两颗恒星周围的圆盘中检测到紧凑的热尘埃连续发射。HD 100546还显示出延伸发射的迹象，可能是残留的原恒星包层，在光学波长的散射光中也可见。对于TW Hya，HCO+ J = 1-0线发射从拱星盘检测和空间分辨。所观察到的大小和强度是在良好的协议与模型计算的基础上照射磁盘与以前从单碟观测更高的J HCO+过渡的大量消耗。
We present observations of the young stars TW Hya and HD 100546 made with the Australia Telescope Compact Array at 89 GHz with ~2'' resolution and ~3 mJy continuum sensitivity. Compact thermal dust continuum emission is detected from disks surrounding both stars. HD 100546 also shows hints of extended emission, presumably a residual protostellar envelope, which is also visible in scattered light at optical wavelengths. For TW Hya, HCO+ J = 1-0 line emission from the circumstellar disk is detected and spatially resolved. The observed size and intensity are in good agreement with model calculations based on an irradiated disk with substantial depletions derived previously from single-dish observations of higher J HCO+ transitions.
影响因子：
3.2
作者：
V. Mannings;A. Boss;S. Russell
通讯作者：
V. Mannings;A. Boss;S. Russell