论文标题

Fulleranes是否负责21微米的功能?

Are fulleranes responsible for the 21 micron feature?

论文作者

Zhang, Yong

论文摘要

C $ _ {60} $,C $ _ {70} $和C $ _ {60}^+$在空间中的C $ _ {60} $,C $ _ {60} $的最新检测。作为有希望的富勒烯来源,原球门星云(PPNE)在其红外光谱中显示了许多未识别的频段,其中一个小样本以$ \ sim21 $ \,$μ$ m的形式显示出神秘的特征。富勒烯的氢化可以产生富勒素,从而发出新的红外带。在本文中,我们研究了富勒酸(c $ _ {60} $ h $ _m $)作为21 \,$μ$ M功能的载体,就富勒拉素的理论振动光谱而言。提出了有利于和不利于富勒烷假设的证据。我们对C $ _ {60} $ H $ _M $的氢覆盖率进行了初步猜测,该$ _ $ _ $可能会导致21 \,$μ$ m的功能。

Recent detections of C$_{60}$, C$_{70}$, and C$_{60}^+$ in space induced extensive studies of fullerene derivatives in circumstellar environments. As the promising fullerene sources, protoplanetary nebulae (PPNe) show a number of unidentified bands in their infrared spectra, among which a small sample exhibits an enigmatic feature at $\sim21$\,$μ$m. Hydrogenation of fullerenes can produce fulleranes emitting new infrared bands. In this paper, we investigate the possibility of fulleranes (C$_{60}$H$_m$) as the carrier of the 21\,$μ$m feature in terms of theoretical vibrational spectra of fulleranes. The evidences favoring and disfavoring the fullerane hypothesis are presented. We made an initial guess for the hydrogen coverage of C$_{60}$H$_m$ that may contribute to the 21\,$μ$m feature.

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