Spectra of pure isobutane were recorded at high temperature in the C-H stretching region (2750-3050 cm⁻¹) with a high resolution Fourier transform spectrometer. Isobutane absorption cross sections were determined for six temperatures from 295 K to 739 K. These data may be useful for simulations of hot Jupiter exoplanets and brown dwarfs. Integrated cross sections were compared with adjusted cross section data from the Pacific Northwest National Laboratory (PNNL) database.

中文翻译：

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CH拉伸区中热异丁烷的红外吸收截面

用高分辨率傅立叶变换光谱仪在CH拉伸区域（2750-3050 cm ^-1）中在高温下记录纯异丁烷的光谱。确定了从295 K到739 K的六个温度下的异丁烷吸收截面。这些数据可能对模拟热木星系外行星和褐矮星有用。将整合后的横截面与来自太平洋西北国家实验室（PNNL）数据库的调整后的横截面数据进行比较。