Benchmark Linelists and Radiative Cooling Functions for LiH Isotopologues

作者：Diniz Leonardo G^*; Alijah Alexander; Mohallem Jose R

来源：Astrophysical Journal, The - Supplement Series, 2018, 235(2): 35.

DOI：10.3847/1538-4365/aab431

• astrochemistry
• molecular data
• molecular processes
• radiation mechanisms: thermal

Linelists and radiative cooling functions in the local thermodynamic equilibrium limit have been computed for the six most important isotopologues of lithium hydride, (LiH)-Li-7, (LiH)-Li-6, (LiD)-Li-7, (LiD)-Li-6, (LiT)-Li-7, and (LiT)-Li-6. The data are based on the most accurate dipole moment and potential energy curves presently available, the latter including adiabatic and leading relativistic corrections. Distance-dependent reduced vibrational masses are used to account for non-adiabatic corrections of the rovibrational energy levels. Even for (LiH)-Li-7, for which linelists have been reported previously, the present linelist is more accurate. Among all isotopologues, (LiH)-Li-7 and (LiH)-Li-6 are the best coolants, as shown by the radiative cooling functions.

• 出版日期2018-4