Open AccessAstrochemical study of a dense molecular clump of WB 673 filament
Author(s) -
O. L. Ryabukhina,
M. S. Kirsanova,
D.S. Wiebe
Publication year - 2022
Publication title -
astronomy at the epoch of multimessenger studies. proceedings of the vak-2021 conference, aug 23–28, 2021
Language(s) - English
Resource type - Conference proceedings
DOI - 10.51194/vak2021.2022.1.1.062
Subject(s) - physics , protein filament , molecular cloud , astrophysics , ionization , range (aeronautics) , interstellar cloud , stars , chemistry , ion , biochemistry , materials science , quantum mechanics , composite material
We present results of modelling of dark interstellar cloud WB 673 with the PRESTA astrochemical model. We searchedfor the best agreement between the simulated and observed molecular abundances in a wide range of model physicalparameters, and found it satisfactory at the model time t ≈ 5 · 10 5 years. The model with observed temperature and gasdensity distribution and a cosmic ray ionization rate of ζ = 1.3 · 10 −17 s −1 gives a minimum discrepancy between thesimulated and model abundances.