Spectral imaging of the 3.3 and 11.3 micron emission bands in NGC 1333 - Discovery of spatially separate band emissions
Spectral imaging of the 3.3 and 11.3 micron emission bands in NGC 1333 - Discovery of spatially separate band emissions
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NGC 1333 中 3.3 和 11.3 微米发射带的光谱成像 - 发现空间分离的带发射
DOI：
10.1086/172783
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
P. Temi
中科院分区：
文献类型：
--
作者：
J. Bregman;D. Rank;S. Sandford;P. Temi
在恒星形成区NGC1333中，获得了围绕恒星SVS3的星云的光谱图像和口径光谱。这些光谱包含来自含碳物质的强红外发射波段。光谱表明存在与多环芳烃(PAHs)的C-H伸缩模式和C-H离面弯曲模式分别有关的3·3和11·3μm的特征发射特征。3.3μm发射的分布暗示着从发射壳边缘开始的临边发亮。3.3和11.3μm的发射特征来自空间上不同的区域，其中3.3μm的发射发生在11.3μm发射最强的区域之外
Spectral images and aperture spectra were obtained of the nebula around the star SVS 3 in the star formation region NGC 1333. The spectra contain strong infrared emission bands originating from carbonaceous material. The spectra show the presence of the characteristic 3.3 and 11.3 μm emission features thought to be associated with C-H stretching and C-H out-of-plane bending modes, respectively, of polycyclic aromatic hydrocarbons (PAHs). The distribution of the 3.3 μm emission is suggestive of limb brightening from the edge of an emitting shell. The 3.3 and 11.3 μm emission features come from spatially distinct regions, with the 3.3 μm emission occurring outside the region of strongest 11.3 μm emission