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Chemical sensitivity to the ratio of the cosmic-ray ionization rates of He and H2 in dense clouds
Valentine Wakelam, Eric Herbst, Franck Selsis +1
Aim: To determine whether or not gas-phase chemical models with homogeneous and time-independent physical conditions explain the many observed molecular abundances in astrophysical…
Formation of methyl formate and other organic species in the warm-up phase of hot molecular cores
R. T. Garrod, E. Herbst
Aims: The production of saturated organic molecules in hot cores and corinos is not well understood. The standard approach is to assume that, as temperatures heat up during star fo…
The effect of uncertainties on chemical models of dark clouds
Valentine Wakelam, Eric Herbst, Franck Selsis
The gas-phase chemistry of dark clouds has been studied with a treatment of uncertainties caused both by errors in individual rate coefficients and uncertainties in physical condit…
Monte Carlo simulations of H2 formation on stochastically heated grains
H. M. Cuppen, O. Morata, Eric Herbst
Continuous-time, random-walk Monte Carlo simulations of H2 formation on grains have been performed for surfaces that are stochastically heated by photons. We have assumed diffuse c…