The 3.3-µm PAH emission band of the Red Rectangle The 3.3-µm emission of the Red Rectangle
The 3.3-µm PAH emission band of the Red Rectangle The 3.3-µm emission of the Red Rectangle
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红色矩形的 3.3 µm PAH 发射带 红色矩形的 3.3 µm 发射带
DOI：
10.1111/j.1365-2966.2007.12197.x
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发表时间：
2007
影响因子：
4.8
通讯作者：
Song I
中科院分区：
文献类型：
--
作者：
Song I
本文介绍了英国长缝CGS4红外望远镜对红矩形的3.3-μm特征及其沿星云西北方向的演化进行了新的分析。结果支持对峰值波长在3.28和3.30μm附近的3.3-μm特征的双分量解释。这两个分量都显示出随着距离中心星的偏移量增加而向较短波长的小幅移动，这与实验室研究结果相一致，这与距离HD 44179的载流子温度的降低是一致的。两组分方法也适用于红外短波光谱仪研究的红矩形、猎户座D2和猎户座H2 S1的3.3-μm数据。
A new analysis of long-slit CGS4 United Kingdom Infrared Telescope spectra of the 3.3-μm feature of the Red Rectangle and its evolution with offset along the NW whisker of the nebula is presented. The results support a proposed two-component interpretation for the 3.3-μm feature with peak wavelengths near 3.28 and 3.30 μm. Both components exhibit a small shift to shorter wavelength with increasing offset from the central star which, by comparison with laboratory studies, is consistent with a decrease in the temperature of the carriers with distance from HD 44179. The two-component approach is also applied to 3.3-μm data for the Red Rectangle, Orion Bar D2 and Orion Bar H2S1 fromInfrared Space ObservatoryShort Wavelength Spectrometer (SWS) studies.