论文标题
Exomol分子线列表 - XXXVII：乙炔的光谱
ExoMol molecular line lists -- XXXVII: spectra of acetylene
论文作者
论文摘要
作为Exomol项目的一部分计算，计算了乙炔主要同位素的地面电子状态的新的RO振动线列表。 Acety线列表涵盖了最高10,000 cm $^{ - 1} $（$λ> 1 $ $ $ $ $ m）的过渡波数，下层和上部能级分别为12,000 cm $^{ - 1} $和22,000 cm $^{ - 1} $。对振动角动量的最大值执行，$ k _ {\ rm max} = l _ {\ rm max} $ = 16，最大旋转角动量，$ j $ = 99。$ j $的较高值不在指定的vavenumber窗口内。酸边线列表被认为完整可达2200 K，可用于表征高温外行星或凉爽的恒星氛围。 Einstein-A系数可直接用于在特定温度下计算强度，计算出43亿（4,347,381,911）的过渡，在500万（5,160,803）能级之间。我们与$^{12} $ c $ _2 $ h $ _2 $的其他可用数据进行比较，并证明这是最完整的行列表。该行列表可从在线CD和EXOMOL数据库中以电子形式获得。
A new ro-vibrational line list for the ground electronic state of the main isotopologue of acetylene, $^{12}$C$_2$H$_2$, is computed as part of the ExoMol project. The aCeTY line list covers the transition wavenumbers up to 10,000 cm$^{-1}$ ($ λ>1$ $μ$m), with lower and upper energy levels up to 12,000 cm$^{-1}$ and 22,000 cm$^{-1}$ considered, respectively. The calculations are performed up to a maximum value for the vibrational angular momentum, $K_{\rm max}=L_{\rm max}$ = 16, and maximum rotational angular momentum, $J$ = 99. Higher values of $J$ were not within the specified wavenumber window. The aCeTY line list is considered to be complete up to 2200 K, making it suitable for use in characterising high-temperature exoplanet or cool stellar atmospheres. Einstein-A coefficients, which can directly be used to calculate intensities at a particular temperature, are computed for 4.3 billion (4,347,381,911) transitions between 5 million (5,160,803) energy levels. We make comparisons against other available data for $^{12}$C$_2$H$_2$, and demonstrate this to be the most complete line list available. The line list is available in electronic form from the online CDS and ExoMol databases.
